Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Tuesday 22 December 2015 21:02:31 John Hasler wrote:

> Gene Heskett writes:
> > In this case, the size of a capacitor hooked to a square wave
> > source, and I want to know how much charge is transfered for every
> > full cycle of the input square wave.
>
> Zero assuming linear source and load impedence.

Ahh, but its being fed to a voltage-doubler with schottky diodes, so 
there should be a calculatable amount of charge delivered to the output 
capacitor Cf, by the pump capacitor Cp, per cycle.  With Cp being of a 
capacity such that with the usual logic circuits output impedance, 
capable of delivering 10 to 20 milliamps into a resistive load, IOW not 
a zero impedance source. Cf would be sized such as to be about 50x Cp, 
and will be driving an enhancement mode fet which will turn on a 40 amp 
SSR once the charge has built up on Cf to make the fet conduct.

A charge pump detector to control a 2 kw DC power supply startup, one 
turning it on but with a 51 ohm 200 watt resistor in series with the AC 
line, and another identical circuit turning on a 2nd 40 amp SSR to short 
circuit the 51 ohm 200 watt resistor but timed to be 5 seconds later, 
after the capacitors are charged up.  The PSU has a quite high 
capacitance input filter, and without this soft start timed power up, 
needs a 30 amp breaker in the service in order for the breaker to 
withstand the power up event. NEC says I can't service a duplex with 
more than a 15 amp breaker.  The actual draw, once powered up, doesn't 
exceed 15 amps even with a vacuum cleaner being powered by a similar 
circuit enabled that is plugged into this same 4-plex.

All part of a CNC milling machine setup.  And theres no reason for it to 
be enabled when the CNC control program isn't running.  The program will 
generate the 500 hz square wave these charge pump detectors will detect, 
and will control the time delay for the 2nd one. 1/4 to 1 second 
response time is not a concern for something like this.  It just needs 
to be 101% dependable. :)

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

org.freedesktop.login1.policy écrasé à chaque update de systemd

[Fabrice Regnier]

'lut la liste,

Par ce que je suis un poil fainéant, j'ai modifié 
org.freedesktop.login1.policy afin d'autoriser n'importe quel 
utilisateur à mettre le poste en veille ou à l'éteindre, cela m'évite de 
taper le pass de root lorsque j'appuie sur un bouton "mise en veille".


Mais lorsque systemd est mis à jour, j'observe à chaque fois la 
désactivation de mes modifications.


Aussi, pour l'instant, je n'ai rien trouvé de mieux que la bonne vieille 
méthode du cpold pour garder mes modifs mais je suis conscient que je 
supprime du même coup les nouvelles fonctionnalités du 
org.freedesktop.login1.policy.


Voici ma question: savez-vous s'il existe pour polkit-1/actions un 
système de conservation des règles utilisateurs qui viendraient 
surcharger les règles de base ?


Merki et bonnes fêtes à tous ;)

f.

Re: Attempt to Move Root (SOLVED!!)

[Anders Andersson]

On Wed, Dec 23, 2015 at 9:52 AM, David Baron  wrote:
> On reboot (to old system or otherwise), the UUID of the target partition was
> CHANGED!

Unlikely, how do you know? What would change them during a reboot?


> If the problem was not hidden behind a screenfull of lvm errors, I
> would/should have seen that right away, huh?

To my knowledge, lvm does not care about UUIDs. What were these errors?

Re: Jessie remplacerait-il Apache par Lighttpd ?

[andre_debian]

Sinon, choix de serveurs WEB :

- Caddy (simple à installer, avec MySQL et php5),

- Nginx (plus rapide qu'Apache).

- Lighttpd (très simpliste).

André

Re: Achat d'une imprimante - demande de conseils

[Cyrille]

Je prends la discussion en cours de route, donc peut être totalement
HS, mais bon,
perso. sous LINUX je n'ai jamais été déçu par Brother aussi bien laser
que jet d'encre. 
je ne sais si ça peut aider, mais bon, voilà c'est dit !
++
C

Re: reinstalación apt

[Gonzalo Rivero]

El mié, 23-12-2015 a las 11:07 +, rjime...@phobos.es escribió:
> Buenos días,
> 
>   Por error he eliminado el directorio /etc/apt/ con el
> contenido de configuración que había dentro:
> root@thindeb:/etc/apt# pwd
> /etc/apt
> root@thindeb:/etc/apt# ls
> ¿Alguien me podría indicar que maneras tengo de solucionarlo?. He
> estado buscando en la red pero no he encontrado nada y me surgen
> algunas dudas..
> ¿Sería posible reinstalar el paquete apt desde el dvd o de alguna
> manera.?
> ¿Tengo forma de recuperar los ficheros eliminados por ejemplo
> sources.list o el directorio preferences.d?
> He comprobado con debugfs pero no aparecen ya los inodos eliminados
>  Inode  Owner  Mode    Size  Blocks   Time deleted
> 0 deleted inodes found.
> (END)
> Muchas gracias por la ayuda
>  
dpkg -i apt-[algo].deb

no recuerdo el nombre completo del archivo, pero con eso recreás la
configuración predeterminada, no lo que ya tenías. Seguramente vas a
necesitar un nuevo sources.list por ejemplo

-- 
(-.(-.(-.(-.(-.(-.-).-).-).-).-).-)

Re: Need a calculator that knows about coulombs

[Joe]

On Wed, 23 Dec 2015 05:09:18 -0500
Gene Heskett  wrote:

> On Tuesday 22 December 2015 21:02:31 John Hasler wrote:
> 
> > Gene Heskett writes:  
> > > In this case, the size of a capacitor hooked to a square wave
> > > source, and I want to know how much charge is transfered for every
> > > full cycle of the input square wave.  
> >
> > Zero assuming linear source and load impedence.  
> 
> Ahh, but its being fed to a voltage-doubler with schottky diodes, so 
> there should be a calculatable amount of charge delivered to the
> output capacitor Cf, by the pump capacitor Cp, per cycle.  With Cp
> being of a capacity such that with the usual logic circuits output
> impedance, capable of delivering 10 to 20 milliamps into a resistive
> load, IOW not a zero impedance source. Cf would be sized such as to
> be about 50x Cp, and will be driving an enhancement mode fet which
> will turn on a 40 amp SSR once the charge has built up on Cf to make
> the fet conduct.
> 
>
Do it numerically with a spreadsheet.

It takes a while with any reasonably-sized spreadsheet, but you can
trust the result, you can see every stage and can spot anything
obviously wrong.

I once needed to analyse the start-up surge into a large capacitance
using a toroidal mains transformer, and given the non-linearity of the
rectifiers, I could see no other way. When results can reach hundreds of
amps for a millisecond or so, you don't want large piecewise-linear
approximations.

-- 
Joe

Re: Attempt to Move Root (SOLVED!!)

[David Baron]

On Wednesday 23 December 2015 12:39:18 Anders Andersson wrote:
> On Wed, Dec 23, 2015 at 9:52 AM, David Baron  wrote:
> > On reboot (to old system or otherwise), the UUID of the target partition
> > was CHANGED!
> 
> Unlikely, how do you know? What would change them during a reboot?

When I resized the target partition, /dev/disk/by-uuid showed what I 
afterwards placed in fstab and lilo.conf.

Today, a desperate try, placed the new fstab on the old root and rebooted. 
Root could not be mounted and the original mounted read-only (correct behavior 
in this case). I, of course, could not fix it this way. When I tried to 
remount it or mount the new root over it, got error that the uuid could not be 
found.

listing the /dev/disk/by-uuid now showed a new uuid for the target partition. 
Mounted the new partition by /dev/sd..., placed the correct(ed) uuid in fstab 
and lilo.conf, went through the recommended procedure and voile.
> 
> > If the problem was not hidden behind a screenfull of lvm errors, I
> > would/should have seen that right away, huh?
> 
> To my knowledge, lvm does not care about UUIDs. What were these errors?

The lvm error on a functional boot up is once and spurious. This is a bug 
somewhere in the initramfs, I suppose.

The repeated lvm error meant it could not find incorrectly uuid'd partition.

I repeat, I am using no logical volumes. I did not notice the errant uuid as 
cited in the error messages. Might have indeed been but it did not catch my 
eye at the times.

Re: Recovering data from a Raid 1Sata HD

[tomas]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On Wed, Dec 23, 2015 at 09:49:54AM -0300, Renaud OLGIATI wrote:
> On Wed, 23 Dec 2015 11:11:08 +
> Lisi Reisz  wrote:
> 
> > On Wednesday 23 December 2015 10:23:41 to...@tuxteam.de wrote:
> > > -BEGIN PGP SIGNED MESSAGE-
> > > Hash: SHA1
> > >
> > > On Wed, Dec 23, 2015 at 07:41:00AM -0300, Renaud OLGIATI wrote:
> > > > Given a Sata HD that was part of a RAID1 array on a now defunct Wheezy
> > > > system.
> > > >
> > > > Is there a way to mount it on another Wheezy system to recover the data 
> > > > ?
> > > >
> > > > I have tried to mount it, and get
> > > >
> > > > root@ron:/home/ron # mount -t ext4 /dev/sdi9 /media/eSata
> > > > mount: wrong fs type, bad option, bad superblock on /dev/sdi9,
> > > >missing codepage or helper program, or other error
> > > >In some cases useful info is found in syslog - try
> > > >dmesg | tail  or so
> > > >
> > > > What file type should I give for the -t param of mount ?
> 
> > > Try to omit the explicit file system ("-t ext4") in the mount
> > > invocation above: mount should be able to find out by itself --
> > > unless you positively know that ext4 is right.
> 
> > If it is demanding a file type, how about  "-t auto"?
> 
> root@ron:/home/ron # mount /dev/sdi9 /media/eSata
> mount: you must specify the filesystem type
> 
> root@ron:/home/ron # mount -t auto /dev/sdi9 /media/eSata
> mount: you must specify the filesystem type

That means mount can't guess what filesystem is on /dev/sdi9. I fear we
won't be better at it. But you could try something like:

  sudo dd if=/dev/sdi9 bs=1024 count=1 | file -

Perhaps 'file' can shed some light onto it (it doesn't always)

Regards
- -- tomás
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=LdsL
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Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 06:47:39 Joe wrote:

> On Wed, 23 Dec 2015 05:09:18 -0500
>
> Gene Heskett  wrote:
> > On Tuesday 22 December 2015 21:02:31 John Hasler wrote:
> > > Gene Heskett writes:
> > > > In this case, the size of a capacitor hooked to a square wave
> > > > source, and I want to know how much charge is transfered for
> > > > every full cycle of the input square wave.
> > >
> > > Zero assuming linear source and load impedence.
> >
> > Ahh, but its being fed to a voltage-doubler with schottky diodes, so
> > there should be a calculatable amount of charge delivered to the
> > output capacitor Cf, by the pump capacitor Cp, per cycle.  With Cp
> > being of a capacity such that with the usual logic circuits output
> > impedance, capable of delivering 10 to 20 milliamps into a resistive
> > load, IOW not a zero impedance source. Cf would be sized such as to
> > be about 50x Cp, and will be driving an enhancement mode fet which
> > will turn on a 40 amp SSR once the charge has built up on Cf to make
> > the fet conduct.
>
> Do it numerically with a spreadsheet.
>
> It takes a while with any reasonably-sized spreadsheet, but you can
> trust the result, you can see every stage and can spot anything
> obviously wrong.
>
> I once needed to analyse the start-up surge into a large capacitance
> using a toroidal mains transformer, and given the non-linearity of the
> rectifiers, I could see no other way. When results can reach hundreds
> of amps for a millisecond or so, you don't want large piecewise-linear
> approximations.

True, but all I am interested in, and the transformers involved are 
toroids, 4 of them good for half a kw each, is limiting the input surge 
to 127/51=2.49019607843 amps at the initial turn on with the 51 ohm R in 
series with their combined primaries.  Then however many seconds later 
when those caps are at 90% or better charge and long before I or the 
code starts the spindle, shorts the 51 ohm resistor allowing full 
current flow.  It could be in excess of a minute because the first 
operation is homing the machine, one axis at a time, which depending on 
where it was when last powered down, could take up to a full minute to 
do. The spindle power at full song is not a requirement until that is 
done.  And because of the acoustic noise from both the spindle and 
vacuum, I don't normally start the spindle and vacuum until it is in 
position to start cutting with the next commanded move. I am the one 
writing the code.

So I don't need to analyse it microsecond by microsecond, just control it 
to a defined peak current draw. In this case I could use a lower 
resistor value R but thats what I have available in my "junk box" 
without ordering online.  It will catch 316.254901961 instant watts when 
the caps are at 0 volts, more than its 200 watt rating, but not for long 
enough to blow the glaze off it over time as that instantaineous power 
will drop rapidly as the caps charge up to working voltage.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: [HS] Linux et le 10giga

[alex]

Bonjour,

>
> 1. Dans ce genre de produit, est-il possible et courant de déconnecter
> le module SFP+ de son câble (en clair, de changer de longueur de câble) ?
Normalement non il s'agit d'un cable "twinax" (deux cable coaxial en 1)
et celui-ci est sertis en usine.

> 2. Comment interconnecte-t-on deux switchs de constructeurs différents
> ? Existe-t-il véritablement des problèmes d'interop ? Idem entre un
> serveur et un switch ?
On les relies ensembles via SFP(+) il y à quelques fois des problèmes
mais je pense que le problème est plus d'ordre politique que technique,
Pour les problème d'interop exemple: je veux uniquement des SFP de la
même marque que le switch pour çela je bloque les SFP des autres marque.
Entre un serveur et un switch le problème ne ce pose pas vraiment, mais
à confirmer pour les trois cas.

>
> J'ai fait l'acquisition récente d'une carte mère qui intègre un
> emplacement SFP+.
> Celui-ci ma donné l'envie (Noël approche) de passer au 10Giga.
De quel model/fabriquant

> 3. Une machine Jessie accepte-t-elle facilement des modules SFP+ ou
> bien  faut-il pour cette raison, passer à Stretch ?
Dépend de l'intégration du pilote dans le noyau mais sinon il y a des
noyaux récent de le backport.


Le 23/12/2015 11:54, Olivier a écrit :
> Bonjour,
>
> J'ai fait l'acquisition récente d'une carte mère qui intègre un
> emplacement SFP+.
> Celui-ci ma donné l'envie (Noël approche) de passer au 10Giga.
>
> En surfant, j'ai été surpris de voir qu'il existait assez peu
> d'adaptateur réseau fonctionnant au 10giga, ceux que j'ai trouvé me
> semblant, par ailleurs, assez cher.
>
> À l'inverse, je découvre des produits comme le [1] qui sont, si j'ai
> bien compris, des câbles SFP+ intégrant 2 modules SFP+ à un câble
> d'une longueur donnée.
>
> Mes questions sont:
>
> 1. Dans ce genre de produit, est-il possible et courant de déconnecter
> le module SFP+ de son câble (en clair, de changer de longueur de câble) ?
> 2. Comment interconnecte-t-on deux switchs de constructeurs différents
> ? Existe-t-il véritablement des problèmes d'interop ? Idem entre un
> serveur et un switch ?
> 3. Une machine Jessie accepte-t-elle facilement des modules SFP+ ou
> bien  faut-il pour cette raison, passer à Stretch ?
>
> Slts
>
>
> [1] http://www.ldlc-pro.com/fiche/PB00179447.html

Re: removing TexLive Docs packages

[The Wanderer]

On 2015-12-23 at 09:55, Udyant Wig wrote:

> On 12/23/2015 12:15 PM, Sivaram Neelakantan wrote:
> 
>> I installed TexLive recently and during one of the upgrades, the 
>> entire texdoc package got installed too.  that is humoungous and
>> I'd like to remove the doc packages alone and also stop future
>> installs of the same type whenever I Upgrade TexLive.
> 
>   An appreciable problem.
> 
>   # To remove all installed packages with `texlive' and `doc' in their
>   # names:
>   # aptitude remove '~i~ntexlive~ndoc'
> 
>   # To prevent these packages from getting installed later:
>   # aptitude hold '~ntexlive~ndoc'

Does this latter actually work?

I would expect it to use the same hold mechanism as 'apt-mark hold' or
'echo "packagename hold" | dpkg --set-selections', and in my experience
holding a package as not installed does not work; it doesn't even get
recorded in the package-selection state, and certainly doesn't get
respected later when another package Depends or Recommends that package.

If that's been changed, or if there's a mechanism which avoids it and
does work, I'd be very interested.

>>  sivaram
>>  --
> 
>   Minor note: I do not recall seeing signatures like yours.

The standard for signature delimiters is a line consisting of '-- ', as
the first line of the signature block. Software which knows what it's
doing will see this line and treat whatever comes after it specially -
for example, leave it out when quoting a message for reply.

If what he(?) really wants to do is treat his name as part of the post
and any (un-snipped? bottom-quoted?) text below that as special, then
his current signature delimiter is _almost_ correct - the "almost" being
because he has a space before the '--' as well as after, so the
delimiter won't be recognized by most software.

If he's aiming for a normal signature delimiter, however, he does indeed
have it slightly wrong.
-- 
   The Wanderer

The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man. -- George Bernard Shaw



signature.asc
Description: OpenPGP digital signature

Re: cómo hacer una imagen iso en ¿vivo? a partir de un debian 9 cifrado.

[Camaleón]

El Tue, 22 Dec 2015 13:51:34 -0500, listascor...@msjs.co escribió:

> Hola lista
> 
> ¿que tal van las causa debianita? ¿bien?... alguien sabe como hacer una 
> imagen iso en ¿vivo? a partir de un s.o. instalado (con sus 
> configuraciones). El s.o. es debian 9 cifrado.
> 
> Remastersys-> no tiene soporte para debian 9.
> dd utility -> no se puede instalar en debian 9.
> debian live -> no encontré el tuto.
> systemback -> no tiene soporte para debian 9.
> 
> ¿alguna idea?

Por si te sirve, más que nada porque es reciente:

http://crunchbang.org/forums/viewtopic.php?id=39907

Y también la lista de debian-live:

https://lists.debian.org/debian-live/

En cuando a la documentación veo que hay un paquete que se llama "live-
manual".

Saludos,

-- 
Camaleón

Re: removing TexLive Docs packages

[Osamu Aoki]

Hi,

On Wed, Dec 23, 2015 at 10:27:25AM -0500, The Wanderer wrote:
> On 2015-12-23 at 09:55, Udyant Wig wrote:
> 
> > On 12/23/2015 12:15 PM, Sivaram Neelakantan wrote:
> > 
> >> I installed TexLive recently and during one of the upgrades, the 
> >> entire texdoc package got installed too.  that is humoungous and
> >> I'd like to remove the doc packages alone and also stop future
> >> installs of the same type whenever I Upgrade TexLive.
> > 
> >   An appreciable problem.

I used to worry this when I were on P5 system etc.
Now disk is cheap, so I do not care much. But ...

> >   # To prevent these packages from getting installed later:
> >   # aptitude hold '~ntexlive~ndoc'
> 
> Does this latter actually work?
> 
> I would expect it to use the same hold mechanism as 'apt-mark hold' or
> 'echo "packagename hold" | dpkg --set-selections', and in my experience
> holding a package as not installed does not work; it doesn't even get
> recorded in the package-selection state, and certainly doesn't get
> respected later when another package Depends or Recommends that package.
> 
> If that's been changed, or if there's a mechanism which avoids it and
> does work, I'd be very interested.

I agree.  I tested "hold" on an uninstalled package with aptitude,
nothing happened.

So your option is to use /etc/apt/preferences as described in
apt_preferences(5) where new glob(7) syntax for package is described.

This is not tested but it should be like:

   Package: /^texlive-.*-doc$/
   Pin: release a=*
   Pin-Priority: 10

This glob feature is available from apt (0.8.14)  Apr 2011.

Osamu

Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Eduardo Rios]

Aviso por si acaso.

Los que tengáis Debian testing con kernel 4.2, si actualizáis al kernel 
4.3, tened la precaución de no desinstalar la versión anterior demasiado 
pronto.


Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. Se 
queda un proceso cerrandose, que no consigo saber cual es, con una 
cuenta de un minuto y medio hacia atrás, y conforme acaba, sigue 
añadiendo tiempo...


Me parece que tiene que ver con login.

Yo ahora no puedo volver al kernel anterior, a no ser que coja el 3.16 
de Jessie o el 4.20 de los backports de Jessie, pero no el de Stretch.


--
www.LinuxCounter.net

Registered user #369215

Re: Fijar emparejamiento bluetooth

[Camaleón]

El Tue, 22 Dec 2015 22:31:37 +0100, Josu Lazkano escribió:

> El día 22 de diciembre de 2015, 15:57, Camaleón 
> escribió:

(...)

>>> Sigo investigando.
>>
>> Cuando no lo detecte, ejecútalo a mano "hciconfig hci0 up" a ver qué te
>> dice. Si te devuelve algo del tipo "device busy" prueba reiniciando el
>> demonio "service bluetooth restart". O también, como parece que sí
>> reconoce el dispositivo y lo tiene como emparejado, puedes intentar
>> simplemente conectarte.
>>
>> En cualquier caso, revisa siempre los registros en /var/log/syslog o el
>> dmesg. Además, verifica los archivos de configuración "/etc/default/
>> bluetooth" y "/etc/bluetooth/*.conf".
>>
> Gracias de nuevo.
> 
> Apago el PC.
> 
> Parece que no es tan sencillo, he leido un monton de guias pero no me
> funciona de ninguna de las maneras.

Si fuera sencillo no sería linux ;-)

> Realmente el dispositivo se comporta como un teclado. La idea es que
> cuando lo encienda el propio PC lo detect y conecte, sin hacer nada mas.

Aquí entran dos cosas en juego y por este orden:

1/ Detección de hardware
2/ Eventos a ejecutar

Si falla 1/ no hay 2/, así que resulta vital que el dispositivo se 
detecte correctamente para que después udev pueda ejecutar los comandos 
que le digas (emparejar, iniciar, etc...). 

Y si algo falla, tienes que revisar los registros para ver qué es y poder 
resolverlo.

Saludos,

-- 
Camaleón

Re: OT freedns y gmail configuracion de remitente de correo

[Camaleón]

El Tue, 22 Dec 2015 21:36:38 +0100, Alberto C. escribió:

> On Tue, Dec 22, 2015 at 03:39:27PM +0100, Alberto C. wrote:

(...)

>> > La cuenta de correo que quieras usar en Gmail tiene que ser un buzón
>> > real (o un alias a un buzón real, vaya) pero para validarla Gmail
>> > tiene que poder enviar un mensaje al que debes responder y a partir
>> > de ese momento ya puedes usar la nueva dirección como remitente.
>> > 
>> > Lo hace así por seguridad, claro.
>> 
>  efectivamente es lo que imaginaba, hacen falta dos cuentas. La idea de
>  mantener la de gmail para el smtp es por el tema de los relay ya que la
>  ip es dinámica y enviar correos desde el dominio asociado a esa ip
>  suele provocar que no sean admitidos (esto es lo que entiendo según
>  investigo sobre el tema)

(...)

Si, es cierto. La mayoría de los servidores de correo con direcciones IP 
dinámicas ("sucias" en su mayoría) se bloquean y por buenos motivos. Y si 
quieres usar tu Postfix como cliente para que contacte con el servidor 
smtp de Gmail para poder enviar correos desde tu cuenta con ese alias 
tienes que validarlo primero.

Pero a ver, tampoco me parece un drama. Usa tu servidor de correo como lo 
que es, un servidor de correo, configura esa cuenta y verifica que recibe 
mensajes, añádela a tu cuenta de Gmail, valídala y luego la das de baja, 
es sólo para que Gmail puede confirmar que existe y te permita hacer relay 
con ella.

El problema lo tendrás cuando alguien te mande un mensaje a esa 
dirección, la personal, el correo le vendrá rebotado al remitente porque 
ningún servidor se hace cargo de esa cuenta, de ahí que no entienda el 
uso práctico que le quieres dar... más allá de hacer pruebas y esas 
cosas :-)

Saludos,

-- 
Camaleón

Re: removing TexLive Docs packages

[Osamu Aoki]

Hi,

This fixes error in my previous post.

On Wed, Dec 23, 2015 at 10:27:25AM -0500, The Wanderer wrote:
> On 2015-12-23 at 09:55, Udyant Wig wrote:
> >   # To prevent these packages from getting installed later:
...
> If that's been changed, or if there's a mechanism which avoids it and
> does work, I'd be very interested.

>From root account:
 # cat >/etc/apt/preferences.d/block-texlive << EOF
Package: /^texlive-.*-doc$/
Pin: release a=*
Pin-Priority: -1
EOF

This worked.  (Priority 10 was not small enough.)

Osamu

Re: Guión medio color azul en emacs

[Carlos Zuniga]

2015-12-22 18:26 GMT-05:00 Debia Linux :
> Que tal lista:
>
> Tengo un pequeño inconveniente. Estoy editando un texto en emacs con
> latext. Por alguna razón que no se cual es, se cerro el archivo y al
> hacer la recuperación del mismo, las letras í (i acentuada) me
> apareceina con algunos simbolos extraños, como si estuviera mal la
> codificación.
>
> Entonces decidí reemplazarlos y mediante M - x replace-string y solo
> me reemplaza los simbolos previos al guión medio que aparece coloreado
> en azul.
>
> Cuando intento reemplazar ese guión medio coloreado de azul, no se
> genera ningun remplazo.
>
> ¿Como podría quitar ese guión azul de manera sistematica porque son
> miles de este tipo de guiones.
>
> Gracias.
>
> Debianeromx
>

Seguro que los guiones son guiones dentro del documento o son solo una
forma de emacs para representar algún caracter no imprimible? Puedes
intentar abrir el archivo con algún editor hexadecimal y editarlo ahí.

Con vim puedes usar `:%!xxd` para convertir tu archivo a hexadecimal,
editarlo y usar `:%!xxd -r` para regresar antes de guardar.

Re: Need a calculator that knows about coulombs

[Jörg-Volker Peetz]

Maybe you find something among the software listed here:

Wikipedia:WikiProject Electronics/Programs - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Wikipedia:WikiProject_Electronics/Programs

e.g., Qucs https://en.wikipedia.org/wiki/Quite_Universal_Circuit_Simulator

Regards,
jvp.

Re: Recovering data from a Raid 1Sata HD

[Ron]

On Wed, 23 Dec 2015 13:33:22 +0100
 wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
> 
> On Wed, Dec 23, 2015 at 09:49:54AM -0300, Renaud OLGIATI wrote:
> > On Wed, 23 Dec 2015 11:11:08 +
> > Lisi Reisz  wrote:
> > 
> > > On Wednesday 23 December 2015 10:23:41 to...@tuxteam.de wrote:
> > > > -BEGIN PGP SIGNED MESSAGE-
> > > > Hash: SHA1
> > > >
> > > > On Wed, Dec 23, 2015 at 07:41:00AM -0300, Renaud OLGIATI wrote:
> > > > > Given a Sata HD that was part of a RAID1 array on a now defunct Wheezy
> > > > > system.
> > > > >
> > > > > Is there a way to mount it on another Wheezy system to recover the 
> > > > > data ?
> > > > >
> > > > > I have tried to mount it, and get
> > > > >
> > > > > root@ron:/home/ron # mount -t ext4 /dev/sdi9 /media/eSata
> > > > > mount: wrong fs type, bad option, bad superblock on /dev/sdi9,
> > > > >missing codepage or helper program, or other error
> > > > >In some cases useful info is found in syslog - try
> > > > >dmesg | tail  or so
> > > > >
> > > > > What file type should I give for the -t param of mount ?
> > 
> > > > Try to omit the explicit file system ("-t ext4") in the mount
> > > > invocation above: mount should be able to find out by itself --
> > > > unless you positively know that ext4 is right.
> > 
> > > If it is demanding a file type, how about  "-t auto"?
> > 
> > root@ron:/home/ron # mount /dev/sdi9 /media/eSata
> > mount: you must specify the filesystem type
> > 
> > root@ron:/home/ron # mount -t auto /dev/sdi9 /media/eSata
> > mount: you must specify the filesystem type
> 
> That means mount can't guess what filesystem is on /dev/sdi9. I fear we
> won't be better at it. But you could try something like:
> 
>   sudo dd if=/dev/sdi9 bs=1024 count=1 | file -
> 
> Perhaps 'file' can shed some light onto it (it doesn't always)

Thank, but I fear I remain un-enlightened:

root@ron:/home/ron # dd if=/dev/sdi9 bs=1024 count=1 | file -
1+0 records in
1+0 records out
1024 bytes (1.0 kB) copied, 0.000693701 s, 1.5 MB/s
/dev/stdin: data

Cheers,
 
Ron.
-- 
  One seldom sees a monument to a committee.

   -- http://www.olgiati-in-paraguay.org --
 

Re: Apt security update erreurs 504 fréquentes

[cedric rousselot]

Bonjour,
Si tu as plusieurs machines executant la meme distribution il est
peut-etre interessant de mettre en place un proxy apt. 
Ca evitera de saturer la liaison internet. 

Apres, security.debian.org pointe sur au moins 3 serveurs:

dig security.debian.org

; <<>> DiG 9.9.5-9+deb8u3-Debian <<>> security.debian.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3859
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1280
;; QUESTION SECTION:
;security.debian.org.   IN  A

;; ANSWER SECTION:
security.debian.org.20  IN  A   212.211.132.32
security.debian.org.20  IN  A   212.211.132.250
security.debian.org.20  IN  A   195.20.242.89

;; Query time: 0 msec
;; SERVER: 172.17.10.15#53(172.17.10.15)
;; WHEN: Wed Dec 23 15:20:14 CET 2015
;; MSG SIZE  rcvd: 96

A mon avis, on aura du mal a saturer leur bande passante avec quelques
requetes.


Le Tue, 22 Dec 2015 10:45:35 +0100,
David_dev Dev  a écrit :

> Bonjour,
> 
> Nous avons régulièrement des erreur 504 lors des mises à jour
> programmées en crontab avec unattended-upgrades sur une debian 7 :
> 
> /var/log/unattended-upgrades/unattended-upgrades.log :
> 
> 
> 2015-12-19 06:27:10,897 ERROR Une erreur s'est produite : 504
> Connection to server timed out
> 2015-12-19 06:27:10,898 ERROR Échec du téléchargement à l'URI «
> http://security.debian.org/pool/updates/main/l/linux/linux-image-3.2.0-4-amd64_3.2.73-2+deb7u1_amd64.deb
> », abandon
> 
> Le lendemain vers les mêmes horaires plus de soucis.
> 
> D'autres serveurs identiques n'ont pas ce problème le même jours dans
> la même plage horaire (tous les serveurs se mettent à jour entre 6h
> et 7h en gros).
> 
> Ces serveurs ne semblent pas chargés, la ligne internet non plus,
> j'ai du mal à comprendre (et marre des mails d'alertes toutes les
> semaines).
> 
> l'update se lance tous les jours sinon et fonctionne la majorité du
> temps. Ex1 : server1 : ok du 01/12 à aujourd'hui sauf le 19/12
> Ex2 : server2 : ok du 01/12 à aujourd'hui sauf les 16 et 18/12
> 
> Quelqu'un aurait-il des idées ?
> 
> Y a-t-il des périodes de mises à jour du dépôt security à éviter ?
> Y a-t-il des limitations si trop de machines venant de la même IP se
> connectent sur le dépôt (unattended semble avoir un random de timer
> assez large pourtant et pas 200 machines à mettre à jour).

Re: A start job is runing for device ....

[Camaleón]

El Tue, 22 Dec 2015 15:30:15 -0500, merlinva2012 escribió:

> Disculpen mis pocos conocimientos, como reflejo ese cambio en fstab

Simplemente tienes que cambiar el identificador antiguo por el nuevo, es 
decir:

Antiguo:

# swap was on /dev/sda7 during installation
UUID=f5761bf0-d589-4917-9aae-844333e48f47 noneswapsw
 0   0

Nuevo:

# swap was on /dev/sda7 during installation
UUID=a47e253d-3505-4fca-ac1d-772064be9595 noneswapsw
 0   0

Saludos,

-- 
Camaleón

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 08:49:34 Jörg-Volker Peetz wrote:

> Maybe you find something among the software listed here:
>
> Wikipedia:WikiProject Electronics/Programs - Wikipedia, the free
> encyclopedia
> https://en.wikipedia.org/wiki/Wikipedia:WikiProject_Electronics/Progra
>ms
>
> e.g., Qucs
> https://en.wikipedia.org/wiki/Quite_Universal_Circuit_Simulator
>
> Regards,
> jvp.

Sounds like exactly what might be useful here. But no qucs exists in the 
wheezy repos. Dowloaded src, will see if it will build on wheezy.

Thank you Jörg-Volker Peetz.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: reinstalación apt

[Carlos Zuniga]

2015-12-23 6:42 GMT-05:00 Gonzalo Rivero :
> El mié, 23-12-2015 a las 11:07 +, rjime...@phobos.es escribió:
>> Buenos días,
>>
>>   Por error he eliminado el directorio /etc/apt/ con el
>> contenido de configuración que había dentro:
>> root@thindeb:/etc/apt# pwd
>> /etc/apt
>> root@thindeb:/etc/apt# ls
>> ¿Alguien me podría indicar que maneras tengo de solucionarlo?. He
>> estado buscando en la red pero no he encontrado nada y me surgen
>> algunas dudas..
>> ¿Sería posible reinstalar el paquete apt desde el dvd o de alguna
>> manera.?
>> ¿Tengo forma de recuperar los ficheros eliminados por ejemplo
>> sources.list o el directorio preferences.d?
>> He comprobado con debugfs pero no aparecen ya los inodos eliminados
>>  Inode  Owner  ModeSize  Blocks   Time deleted
>> 0 deleted inodes found.
>> (END)
>> Muchas gracias por la ayuda
>>
> dpkg -i apt-[algo].deb
>
> no recuerdo el nombre completo del archivo, pero con eso recreás la
> configuración predeterminada, no lo que ya tenías. Seguramente vas a
> necesitar un nuevo sources.list por ejemplo
>

Y si no haz hecho un `apt-get clean` recientemente, probablemente el
paquete este en /var/cache/apt/archives

Re: Recovering data from a Raid 1Sata HD

[Himanshu Shekhar]

At the end, if all methods will fail, you could really try testdisk, it's
free.
You could go for other commercial options too, depending upon the necessity
of the data.

Regards
Himanshu Shekhar

Re: Recovering data from a Raid 1Sata HD

[Bob Weber]

Yes you can mount the single raid1 disk.  Your wheezy system should have
recognized your drive as a md device when booted.  Run the commend 'cat
/proc/mdstat'.  It will show you the current md devices and their status.  This
is what I get after connecting a drive to my system over a usb connection.  It
added drives /dev/sdg[1-3] to my system drive list (ls /dev/sd*).  I had to
assemble the drive partitions into md devices with the commands 'mdadm
--assemble /dev/md5 /dev/sdg1', 'mdadm --assemble /dev/md6 /dev/sdg2' and 'mdadm
--assemble /dev/md7 /dev/sdg3'.

cat /proc/mdstat
Personalities : [raid1]
md7 : active (auto-read-only) raid1 sdg3[3]
  211690544 blocks super 1.2 [3/1] [__U]
 
md6 : active (auto-read-only) raid1 sdg2[3]
  1048564 blocks super 1.2 [3/1] [__U]
 
md5 : active (auto-read-only) raid1 sdg1[3]
  31456184 blocks super 1.2 [3/1] [__U]
 
md2 : active raid1 sda3[3] sdb3[5]
  938881600 blocks super 1.2 [2/2] [UU]
 
md1 : active raid1 sda2[3] sdb2[5]
  4192192 blocks super 1.2 [2/2] [UU]
 
md0 : active raid1 sda1[0] sdb1[1]
  33554368 blocks [2/2] [UU]
 
unused devices: 

Where my original system devices are md0, md1 and md2.  You will also see that
this is a degraded array with the notation [3/1] [__U] which means that the
original array had 3 drives and now has one.

If you have just booted the system with the drive connected it may have
assembled the md devices for you.  Look for the drive partitions for the old
drive and you will see the md device your system has assigned to it.  It might
me something like /dev/md127, /dev/md126 and so on depending on how many
partitions the drive has. 

Now mount the array with 'mount /dev/md5 /mnt/src' after creating the directory
/mnt/src first.  Of course your device names and drive names will be different. 
If the original array device was a swap partition (as my md6 above is) it will
not mount.  Once you are finished and have unmounted the array you should stop
the array(s) with the command 'mdadm --stop /dev/md[5-7]'.  Warning ... of
course be careful and not try to stop the arrays your system is using.  I think
mdadm will warn you that the array is in use and cannot be stopped. 


Hope this helps.

...Bob

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Camaleón]

El Wed, 23 Dec 2015 16:37:49 +0100, Eduardo Rios escribió:

> Aviso por si acaso.
> 
> Los que tengáis Debian testing con kernel 4.2, si actualizáis al kernel
> 4.3, tened la precaución de no desinstalar la versión anterior demasiado
> pronto.
> 
> Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. Se
> queda un proceso cerrandose, que no consigo saber cual es, con una
> cuenta de un minuto y medio hacia atrás, y conforme acaba, sigue
> añadiendo tiempo...
> 
> Me parece que tiene que ver con login.

Prueba a cerrar la sesión gráfica y reiniciar/apagar desde una consola.

> Yo ahora no puedo volver al kernel anterior, a no ser que coja el 3.16
> de Jessie o el 4.20 de los backports de Jessie, pero no el de Stretch.

¿Mande? :-?

Puedes instalar el kernel anterior como siempre, desde los paquetes de 
snapshot:

http://snapshot.debian.org/binary/linux-image-4.2.0-1-amd64/

Saludos,

-- 
Camaleón

Re: Recovering data from a Raid 1Sata HD

[Ron]

On Wed, 23 Dec 2015 13:49:36 +0100
to...@tuxteam.de wrote:

> Now you might want to try
>   sudo e2fsck -n /dev/sdi9

Does not like it either:

root@ron:/home/ron # e2fsck -n /dev/sdi9
e2fsck 1.42.5 (29-Jul-2012)
ext2fs_open2: Bad magic number in super-block
e2fsck: Superblock invalid, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/sdi9

I suppose I'll have to go the mdadm way...   ;-3(
 
Cheers,
 
Ron.
-- 
  One seldom sees a monument to a committee.

   -- http://www.olgiati-in-paraguay.org --
 

Documentation complète sur linux

[enae]

Bonjour,

depuis plusieurs années déjà, je suis passé à linux et j'en suis satisfait.

J'arrive à réaliser la plupart des tâches courantes  (surfer sur le web, 
récupérer ses mails, installer/désinstaller des programmes via 
l'interface graphique/console...) par contre, je m'interroge 
actuellement sur le fonctionnement réel interne de linux.


Par là, j'entends les points suivants:
- le système de démarrage (grub)
- les actions atomiques réalisées depuis l'appui sur le bouton "on"
- systemD/sysinitV ou autre...
- le noyau linux
- la philosophie des programmes (=comment sont organisés les programmes 
--- physiquement sur le disque dur et logiquement (dépendances, 
arborescence de programmes)
- le partitionnement de disques ainsi que l'intérêt et les inconvénients 
de systèmes de fichiers avec si possible une analyse critique de ceux-ci

- tout ce qui peut aider à la compréhension en profondeur du système linux

Connaîtriez-vous par hasard des ressources informatiques (fichiers de 
type pdf, pages web ou autre formats électroniques) traitant de ces sujets?


Le but de cette opération étant d'améliorer la compréhension de ce 
système ouvert, promouvoir (via cette mailling liste) des sources 
d'information de linux, améliorer ses connaissances et pouvoir ainsi 
d'une part mieux se débrouiller, mieux aider, et d'autre part, pouvoir 
proposer des améliorations ou des simplifications de fonctionnement à terme.


Je vous remercie d'avance pour votre aide.

Re: removing TexLive Docs packages

[Udyant Wig]

On 12/23/2015 12:15 PM, Sivaram Neelakantan wrote:
>
> I installed TexLive recently and during one of the upgrades, the
> entire texdoc package got installed too.  that is humoungous and I'd
> like to remove the doc packages alone and also stop future installs of
> the same type whenever I Upgrade TexLive.

  An appreciable problem.

  # To remove all installed packages with `texlive' and `doc' in their
  # names:
  # aptitude remove '~i~ntexlive~ndoc'

  # To prevent these packages from getting installed later:
  # aptitude hold '~ntexlive~ndoc'

> Could someone please suggest a way?  I'm on debian test release, if
> that is of any help.

  I hope the above helps.

>  sivaram
>  --

  Minor note: I do not recall seeing signatures like yours.

-- 
Udyant Wig
Software projects: https://github.com/udyant

Re: reinstalación apt

[Rubén Jiménez]

Gracias Gonzalo, al final descargue el paquete binario y genere un Nuevo 
sources.list

saludos


> On 23 dic 2015, at 12:42, Gonzalo Rivero  wrote:
> 
>> El mié, 23-12-2015 a las 11:07 +, rjime...@phobos.es escribió:
>> Buenos días,
>> 
>>   Por error he eliminado el directorio /etc/apt/ con el
>> contenido de configuración que había dentro:
>> root@thindeb:/etc/apt# pwd
>> /etc/apt
>> root@thindeb:/etc/apt# ls
>> ¿Alguien me podría indicar que maneras tengo de solucionarlo?. He
>> estado buscando en la red pero no he encontrado nada y me surgen
>> algunas dudas..
>> ¿Sería posible reinstalar el paquete apt desde el dvd o de alguna
>> manera.?
>> ¿Tengo forma de recuperar los ficheros eliminados por ejemplo
>> sources.list o el directorio preferences.d?
>> He comprobado con debugfs pero no aparecen ya los inodos eliminados
>>  Inode  Owner  ModeSize  Blocks   Time deleted
>> 0 deleted inodes found.
>> (END)
>> Muchas gracias por la ayuda
> dpkg -i apt-[algo].deb
> 
> no recuerdo el nombre completo del archivo, pero con eso recreás la
> configuración predeterminada, no lo que ya tenías. Seguramente vas a
> necesitar un nuevo sources.list por ejemplo
> 
> -- 
> (-.(-.(-.(-.(-.(-.-).-).-).-).-).-)
> 
> 

Re: reinstalación apt

[Camaleón]

El Wed, 23 Dec 2015 11:07:55 +, rjimenez escribió:

> Buenos días,

Ese formato...

>  Por error he eliminado el directorio /etc/apt/ con
> el contenido de configuración que había dentro:
> 
> root@thindeb:/etc/apt#
> pwd /etc/apt
> 
> root@thindeb:/etc/apt# ls
> 
> ¿Alguien me podría indicar que maneras tengo de solucionarlo?. He estado
> buscando en la red pero no he encontrado nada y me surgen algunas
> dudas..

(...)

sm01@stt008:/etc/apt/apt.conf.d$ ls -l /etc/apt/*
-rw-r--r-- 1 root root   99 jun  1  2013 /etc/apt/listchanges.conf
-rw-r--r-- 1 root root  917 nov  7 18:55 /etc/apt/sources.list
-rw-r--r-- 1 root root0 jun  1  2013 /etc/apt/sources.list~
-rw--- 1 root root 1200 jun  1  2013 /etc/apt/trustdb.gpg
-rw--- 1 root root0 jun  1  2013 /etc/apt/trusted.gpg

/etc/apt/apt.conf.d:
total 24
-rw-r--r-- 1 root root  82 jun  1  2013 00CDMountPoint
-rw-r--r-- 1 root root  40 jun  1  2013 00trustcdrom
-rw-r--r-- 1 root root 430 mar 14  2013 01autoremove
-rw-r--r-- 1 root root 141 jun 30  2012 20listchanges
-rw-r--r-- 1 root root 182 dic 26  2012 70debconf
-rw-r--r-- 1 root root  33 nov  8 15:40 99synaptic

/etc/apt/preferences.d:
total 0

/etc/apt/sources.list.d:
total 0

/etc/apt/trusted.gpg.d:
total 36
-rw-r--r-- 1 root root 5138 ene  2  2015 debian-archive-jessie-automatic.gpg
-rw-r--r-- 1 root root 5147 ene  2  2015 
debian-archive-jessie-security-automatic.gpg
-rw-r--r-- 1 root root 2775 oct  5  2014 debian-archive-jessie-stable.gpg
-rw-r--r-- 1 root root 4084 jun  2  2012 debian-archive-squeeze-automatic.gpg
-rw-r--r-- 1 root root 2853 jun  2  2012 debian-archive-squeeze-stable.gpg
-rw-r--r-- 1 root root 3780 jun  2  2012 debian-archive-wheezy-automatic.gpg
-rw-r--r-- 1 root root 2851 jun  2  2012 debian-archive-wheezy-stable.gpg


Descargar el paquete desde los repositorios y copia/pega el contenido. 
Aunque mejor dicho son al menos dos paquetes los que añaden contenido 
en ese directorio: apt y debconf.

Saludos,

-- 
Camaleón

Re: Documentation complète sur la compilation de programmes

[Eric Degenetais]

Bonjour,

pour information, les bonnes pratiques "indenter son code" et
"commenter son code" n'ont strictement rien à voir avec le processus
de compilation des programmes.

Elles n'en présentent pas moins d'intérêt: elles facilitent la bonne
compréhension du code par les humains qui le modifient, ce qui
contribue à diminuer le risque de bugs...

bonnes fêtes

__
Éric Dégenètais
Henix



http://www.henix.com
http://www.squashtest.org


Le 23 décembre 2015 à 17:43, enae  a écrit :
>
> Bonjour,
>
> j'utilise quotidiennement de nombreux programmes pour toute tâche.
>
> Après examen de tutoriels, livres de programmations et autres ressources, je 
> continue de me poser des questions sur le processus de compilation de 
> programmes.
>
> Certes, le fichier sources est traduit en langage machine, certes, pour ce 
> faire il faut utiliser des options -o etc...
> Mais existe-t-il réellement un manuel complet (ou ressource informatique) 
> abordant de façon concrète, claire et en profondeur les points suivants:
> - les différentes étapes du processus de compilation, leur utilité, le 
> fonctionnement en détail de celles-ci
> - toutes les options possibles, chacune étant expliquée en profondeur
> - des explications sur l'impact hardware lié à la compilation
> - la compilation croisée
> - les bonnes pratiques de programmation (exemple: indenter son code et le 
> commenter)
>
> Je vous remercie d'avance pour votre aide.
>

Re: no response from listmaster

[Lee Fuller]

Sorry to drag up this old relic, Steve - did your investigation yield
anything useful?

Mail is a complicated subject so I'm keen to hear about the conclusion of
issues like this.

On 15 December 2015 at 23:14, Lisi Reisz  wrote:

> On Tuesday 15 December 2015 19:29:50 Brian wrote:
> > Pestering us
> > appears to have its benefits. Just think, your response might have edged
> > him towards it. :)
>
> To be fair, Brian, it wasn't pestering us that was complained about, it was
> pestering the listmasters.  "Pestering" us was the right thing to do, and
> as
> you say helped the OP solve his problem.
>
> Lisi
>
>

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Eduardo Rios]

El 23/12/15 a las 19:55, Luis E. Arevalo R. escribió:

El 23 de diciembre de 2015, 12:37, Eduardo Rios > escribió:

Aviso por si acaso.

Los que tengáis Debian testing con kernel 4.2, si actualizáis al
kernel 4.3, tened la precaución de no desinstalar la versión
anterior demasiado pronto.

Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. Se
queda un proceso cerrandose, que no consigo saber cual es, con una
cuenta de un minuto y medio hacia atrás, y conforme acaba, sigue
añadiendo tiempo...


Hummm, creo que no es el Kernel 4.3. A mí me está pasando desde hace
unos días, y recién hoy salió el nuevo kernel. No he reiniciado aún, y
tampoco he investigado mucho, pero de buenas a primeras diría que por el
Kernel no pasa la cosa.

¡Saludos!


Pues no sé que pensar... Si arranco el equipo con el kernel 4.20, se 
apaga correctamente desde entorno gráfico. Con kernel 4.3, me falla en 
todas las ocasiones.




--
Luis Eduardo Arevalo ReyesUser #354770
http://linuxcounter.net 
Fono +56 9 54012831 http://www.luchox.cl



--
www.LinuxCounter.net

Registered user #369215

Re: [HS] Comment mesurer simplement la performance d'un PC

[cont...@baal.fr]

moi j'utilise ubuntu et je n'ai pas vraiement de problème à déploré 

sachant que je gère des seveurs par contre sous debian et que je joue à 
des jeux vidéos (steam) je fais de la bureautique et de la comptabilité 
etc 



Le 23/12/2015 19:41, maderios a écrit :

On 12/23/2015 07:05 PM, Pascal Obry wrote:
Bonjour


Simple et efficace, toutes les personnes que j'ai migrées dans ma
famille (Ubuntu pas Debian) ne me demande plus rien parce que ça marche


Heu, ubuntu, ça marche jusqu'à un certain point... J'ai tenté sur 
plusieurs années dont en 2015 d'utiliser ubuntu et j'en suis arrivé à 
la conclusion suivante: ubuntu ressemble à Debian mais à une bien 
mauvaise Debian. Pour moi, ubuntu ,n'est qu'un bricolage, astucieux 
certes, mais un mauvais bricolage. Ne parlons pas des dépôt ppa où 
règnent le tout et le n'importe quoi. Les gens qui installent ubuntu 
souhaitent en général une distro très simple à utiliser et surtout 
assez avancée par rapport à Debian Stable. Ils se plantent 
royalement.  Je leur conseillerai plutôt d'utiliser Fedora, 
distribution grand public relativement "en avance" et très bien 
maintenue. Linus Torvalds l'utilise, ce n'est pas un hasard.


-
Maderios

Re: wheezy's bison is too old, need 2.6 before qucs-0.18 will build

[Gene Heskett]

On Wednesday 23 December 2015 13:15:16 Dan Ritter wrote:

> On Wed, Dec 23, 2015 at 01:12:45PM -0500, Gene Heskett wrote:
> > Is it possible to get a later bison than the 2.5 wheezy uses from a
> > comnpatible repo? Qucs needs 2.6.
>
> It's not in wheezy-backports, and Jessie uses a 3.x version.
>
> Might be time to build your own.
>
> -dsr-

Could probably, but then where will this dog, chasing his own tail, 
finally catch it?  I'll do some googling.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Need a calculator that knows about coulombs

[David Christensen]

On 12/23/2015 02:39 AM, Gene Heskett wrote:

Don't have [DC current probe].  Lots of bucks for a good one.

...

Do have [digital sampling oscilloscope], 2 channel gigasampler


How about using a current shunt, and measuring millivolts?



I'll look [up Electric charge on Wikipedia], thanks David.


YW.


David

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Eduardo Rios]

El 23/12/15 a las 17:07, Camaleón escribió:

El Wed, 23 Dec 2015 16:37:49 +0100, Eduardo Rios escribió:


Aviso por si acaso.

Los que tengáis Debian testing con kernel 4.2, si actualizáis al kernel
4.3, tened la precaución de no desinstalar la versión anterior demasiado
pronto.

Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. Se
queda un proceso cerrandose, que no consigo saber cual es, con una
cuenta de un minuto y medio hacia atrás, y conforme acaba, sigue
añadiendo tiempo...

Me parece que tiene que ver con login.


Prueba a cerrar la sesión gráfica y reiniciar/apagar desde una consola.


Arrancando con el kernel en recovery mode, sin que se ejecute el entorno 
gráfico (GNOME 3), apaga sin problemas. Si ejecuto el entorno gráfico, 
falla.





Yo ahora no puedo volver al kernel anterior, a no ser que coja el 3.16
de Jessie o el 4.20 de los backports de Jessie, pero no el de Stretch.


¿Mande? :-?

Puedes instalar el kernel anterior como siempre, desde los paquetes de
snapshot:

http://snapshot.debian.org/binary/linux-image-4.2.0-1-amd64/


Tengo la sensación de que esto ya me lo has dicho más de una vez... y 
siempre se me olvida esta posibilidad...


Gracias, ya lo he instalado, y efectivamente, con este kernel todo 
vuelve a funcionar correctamente.


Algo hay en el kernel 4.3 que no le gusta a GNOME :-P

--
www.LinuxCounter.net

Registered user #369215

Re: Achat d'une imprimante - demande de conseils

[Cyrille]

> je viens juste d'acheter une imprimante Brother D DP-9020CDW
> Mais galère pour l'installer
 
http://support.brother.com/g/b/downloadlist.aspx?c=fr=fr=dcp9020cdw_eu=128=English
ce n'est pas celle là ?

Re: Upgrade Jessie: le montage du disque échoue après 90s

[Olivier]

PS: Juste avant les 4 erreurs, dans les logs, je vois un message
d'avertissement ou de simple information:
lvm: configuration setting 'activation/thin_check_execution' unkown

Une piste ?

Le 23 décembre 2015 à 19:17, Olivier  a écrit :

> Merci beaucoup pour vos suggestions.
>
> mon oeil prophane ne voit aucune anomalie dans /etc/fstab.
> Dans les logs, je vois l'échec successif des 4 partitions LVM var, usr,
> tmp et home avec un message comme
> "Timed out for device dev-mapper-vg01\x2dusr.device"
>
> Ces partitions figurent comme ceci dans /etc/fstab:
> /dev/mapper/vg01-home   /home ext4   defaults   0  2
>
> Je note que la partition root ne semble pas poser de problème (pas
> d'erreur dans les logs). Elle est présente comme ceci:
> /dev/mapper/vg01-home   /home ext4   errors=remount-ro   0  1
>
> Alors ?
>
> Le 23 décembre 2015 à 18:39, Jean-Michel OLTRA <
> jm.oltra.antis...@espinasse.net> a écrit :
>
>>
>> Bonjour,
>>
>>
>> Le mercredi 23 décembre 2015, Olivier a écrit...
>>
>>
>> > A start job is running for dev-mapper-home (15s/1mn90)
>> > La durée devant la barre oblique jusqu'à atteindre la valeur limite de
>> 90s
>> > puis je me retrouve avec un prompt de démarrage d'urgence (le terme
>> vient
>> > de moi) où je dois saisir le mot de passe de root.
>>
>> > Une piste ?
>>
>> Regarde /etc/fstab pour voir si il y aurait une raison pour faire
>> échouer le montage. Du style, ça m'est arrivé, montage d'un périphérique
>> amovible qui n'est pas présent au boot.
>>
>> --
>> jm
>>
>>
>

Re: [HS] Comment mesurer simplement la performance d'un PC

[Pascal Obry]

Le mercredi 23 décembre 2015 à 18:57 +0100, Olivier a écrit :
> Bonjour,
> 
> Avec les fêtes de Noël, j'anticipe des demandes du style "mon PC
> (sous Windows) rame, veux-tu regarder ce qui s'y passe ?".
> 
> 
...
> Qu'en pensez-vous ?

Je vois ce que tu veux dire. A Noël mais les week-ends dans la famille
j'étais le réparateur de PC :) Après quelques années de galère avec
Windows le deal était simple "je te passe sous Linux ou tu trouves
quelqu'un d'autre, je ne touche plus aux machines Windows".

Simple et efficace, toutes les personnes que j'ai migrées dans ma
famille (Ubuntu pas Debian) ne me demande plus rien parce que ça marche
un point c'est tout!

Du coup je me repose à Noël et les week-ends et je profite un peu plus
de ma famille :)

a+

-- 
  Pascal Obry /  Magny Les Hameaux (78)

  The best way to travel is by means of imagination

  http://v2p.fr.eu.org
  http://www.obry.net

  gpg --keyserver keys.gnupg.net --recv-key F949BD3B

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Luis E. Arevalo R.]

El 23 de diciembre de 2015, 12:37, Eduardo Rios 
escribió:

> Aviso por si acaso.
>
> Los que tengáis Debian testing con kernel 4.2, si actualizáis al kernel
> 4.3, tened la precaución de no desinstalar la versión anterior demasiado
> pronto.
>
> Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. Se queda
> un proceso cerrandose, que no consigo saber cual es, con una cuenta de un
> minuto y medio hacia atrás, y conforme acaba, sigue añadiendo tiempo...
>

Hummm, creo que no es el Kernel 4.3. A mí me está pasando desde hace unos
días, y recién hoy salió el nuevo kernel. No he reiniciado aún, y tampoco
he investigado mucho, pero de buenas a primeras diría que por el Kernel no
pasa la cosa.

¡Saludos!

-- 
Luis Eduardo Arevalo ReyesUser #354770
http://linuxcounter.net
Fono +56 9 54012831
http://www.luchox.cl

Re: Need a calculator that knows about coulombs

[John Hasler]

David writes:
> So, you want to connect a 120 VAC, 30 A CNC milling machine and a 120
> VAC, unknown current vacuum cleaner to a single 120 V 15 A branch
> circuit.

No.  He wants to power a 16A mill.  His problem is high inrush on
startup of a DC supply.  Soft-start is a reasonable way to solve it.  He
should use a 20A breaker, though.  15A receptacles are ok on 20A
circuits (though I'd use 20A receptacles and plugs here).

The 2kW is probably peak load.
-- 
John Hasler 
jhas...@newsguy.com
Elmwood, WI USA

Re: Documentation complète sur linux

[Klaus Becker]

Le mercredi 23 décembre 2015, 17:27:06 enae a écrit :
> Bonjour,
> 
> depuis plusieurs années déjà, je suis passé à linux et j'en suis satisfait.
> 
> J'arrive à réaliser la plupart des tâches courantes  (surfer sur le web,
> récupérer ses mails, installer/désinstaller des programmes via
> l'interface graphique/console...) par contre, je m'interroge
> actuellement sur le fonctionnement réel interne de linux.
> 
> Par là, j'entends les points suivants:
> - le système de démarrage (grub)
> - les actions atomiques réalisées depuis l'appui sur le bouton "on"
> - systemD/sysinitV ou autre...
> - le noyau linux
> - la philosophie des programmes (=comment sont organisés les programmes
> --- physiquement sur le disque dur et logiquement (dépendances,
> arborescence de programmes)
> - le partitionnement de disques ainsi que l'intérêt et les inconvénients
> de systèmes de fichiers avec si possible une analyse critique de ceux-ci
> - tout ce qui peut aider à la compréhension en profondeur du système linux
> 
> Connaîtriez-vous par hasard des ressources informatiques (fichiers de
> type pdf, pages web ou autre formats électroniques) traitant de ces sujets?
> 
> Le but de cette opération étant d'améliorer la compréhension de ce
> système ouvert, promouvoir (via cette mailling liste) des sources
> d'information de linux, améliorer ses connaissances et pouvoir ainsi
> d'une part mieux se débrouiller, mieux aider, et d'autre part, pouvoir
> proposer des améliorations ou des simplifications de fonctionnement à terme.
> 
> Je vous remercie d'avance pour votre aide.


Bonsoir,

quelques pistes sur Debian :

http://www.debian.org/doc/manuals/reference/

http://formation-debian.via.ecp.fr/wiki/index.php/Accueil

http://www.debian.org/doc/manuals/debian-reference/index.fr.html

http://www.debian.org/doc/manuals/maint-guide/

http://formation-debian.via.ecp.fr/index.html

http://debian-handbook.info/browse/fr-FR/stable/

http://debian-handbook.info/browse/fr-FR/stable/

http://wiki.debian-facile.org/

GNU/Debianement

Klaus

Re: Guión medio color azul en emacs

[Camaleón]

El Tue, 22 Dec 2015 17:26:21 -0600, Debia Linux escribió:

> Que tal lista:
> 
> Tengo un pequeño inconveniente. Estoy editando un texto en emacs con
> latext. Por alguna razón que no se cual es, se cerro el archivo y al
> hacer la recuperación del mismo, las letras í (i acentuada) me
> apareceina con algunos simbolos extraños, como si estuviera mal la
> codificación.

Trabaja siempre con una copia del archivo original.

Intenta primero definir la codificación del archivo, es decir, dejar que 
sea el propio programa quien interprete correctamente la codificación o 
fuerza a que use una determinada:

https://www.gnu.org/software/emacs/manual/html_node/emacs/Text-Coding.html

> Entonces decidí reemplazarlos y mediante M - x replace-string y solo me
> reemplaza los simbolos previos al guión medio que aparece coloreado en
> azul.
> 
> Cuando intento reemplazar ese guión medio coloreado de azul, no se
> genera ningun remplazo.
> 
> ¿Como podría quitar ese guión azul de manera sistematica porque son
> miles de este tipo de guiones.

Aquí estoy con Carlos; no sé qué es lo que estás haciendo exactamente ni 
qué resultados obtienes exactamente pero parece que estás trabajando sobre 
caracteres de control no sobre el contenido del documento propiamente dicho.

http://www.gnu.org/software/emacs/manual/html_node/emacs/Replace.html#Replace

Saludos,

-- 
Camaleón

[HS] Comment mesurer simplement la performance d'un PC

[Olivier]

Bonjour,

Avec les fêtes de Noël, j'anticipe des demandes du style "mon PC (sous
Windows) rame, veux-tu regarder ce qui s'y passe ?".

J'ai bien une solution radicale en tête (passer à Debian) mais je me
demande s'il existe un moyen de mesure objectif, multi-OS si possible, me
permettant par exemple de comparer dans le temps les performances d'un PC,
voire de démontrer qu'en passant à Debian, un utilisateur qui ne fait que
de la bureautique ne perd rien.

Qu'en pensez-vous ?

Slts

wheezy's bison is too old, need 2.6 before qucs-0.18 will build

[Gene Heskett]

Greetings all;

Is it possible to get a later bison than the 2.5 wheezy uses from a 
comnpatible repo? Qucs needs 2.6.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 13:22:14 David Christensen wrote:

> On 12/23/2015 02:09 AM, Gene Heskett wrote:
> > Ahh, but its being fed to a voltage-doubler with schottky diodes ...
> > The PSU has a quite high
> > capacitance input filter, and without this soft start timed power
> > up, needs a 30 amp breaker in the service in order for the breaker
> > to withstand the power up event. NEC says I can't service a duplex
> > with more than a 15 amp breaker.  The actual draw, once powered up,
> > doesn't exceed 15 amps even with a vacuum cleaner being powered by a
> > similar circuit enabled that is plugged into this same 4-plex.
> > All part of a CNC milling machine setup. ...
>
> So, you want to connect a 120 VAC, 30 A CNC milling machine and a 120
> VAC, unknown current vacuum cleaner to a single 120 V 15 A branch
> circuit.
>
>
> I suppose you could read a power electronics book, and design and
> build a device that accepts 120 VAC, 15 A steady-state input and
> provides 120 VAC, 15 A steady-state output with the ability to output
> much more current for short periods.  Such a product may already
> exist.  If not, you might be able to make and sell them.
>
>
> But, the KISS solution is obvious -- install a 30 ampere circuit
> breaker, wiring, and receptacle for the CNC machine (or hire an
> electrician to do so).

I am a CET. I do my own wiring on small projects. I even put a 200 amp 
service in here back in 2007 or so, putting the house as a subcircuit. 
The only thing I needed an electrician for was to do the drop seal break 
& disconnect, install a heavier drop to the new meterhead, the inspector 
came, liked what he saw and signed off, dead time to crimping the new 
seal a couple hours.  Besides, powered up, spindle turning no load at 
500 revs, the amprobe draw (w/o the vacuum) is around 2.65 amps, on 
either amprobe, I have 2.

Its just the inrush that needs curtailed. Once thats done I'll swap the 
30A breaker back out for a 20A I have laying there ready to be put back 
in where it came out.
>
> David

And Qucs is still building.  Sigh.
Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Need a calculator that knows about coulombs

[John Hasler]

Gene H writes:
> The only thing I needed an electrician for was to do the drop seal
> break & disconnect, install a heavier drop to the new meterhead, the
> inspector came...

Electricians, permits and inspectors eh?  I guess when you have
oppressive government you just have to live with these things.  I redid
the farm with buried cable and put in a new service and all I had to do
was give Excel a written assertion that I had complied with code.
-- 
John "Permits?  We don't need no stinkin permits." Hasler 
jhas...@newsguy.com
Elmwood, WI USA

Upgrade Jessie: le montage du disque échoue après 90s

[Olivier]

Bonjour,

J'ai tenté de mettre à jour une machine de Wheezy à Jessie.
L'opération s'est déroulé sans difficulté apparente sinon qu'au 1er
démarrage, je vois un message du type:
A start job is running for dev-mapper-home (15s/1mn90)
La durée devant la barre oblique jusqu'à atteindre la valeur limite de 90s
puis je me retrouve avec un prompt de démarrage d'urgence (le terme vient
de moi) où je dois saisir le mot de passe de root.

Je suis invité à consulter les logs avec la commande journalctl mais les
logs ne font que répéter que montage des partitions échoue sans que je
sache vraiment pourquoi.

Mes recherches avec mon moteur de recherche ne donnent rien de probant.

Je suis prêt à démarrer avec une clé USB de secours mais je ne vois pas ce
que je ferai une fois que je serai connecté à ma machine via cette clé.


Une piste ?

Slts

Documentation complète sur la compilation de programmes

[enae]

Bonjour,

j'utilise quotidiennement de nombreux programmes pour toute tâche.

Après examen de tutoriels, livres de programmations et autres 
ressources, je continue de me poser des questions sur le processus de 
compilation de programmes.


Certes, le fichier sources est traduit en langage machine, certes, pour 
ce faire il faut utiliser des options -o etc...
Mais existe-t-il réellement un manuel complet (ou ressource 
informatique) abordant de façon concrète, claire et en profondeur les 
points suivants:
- les différentes étapes du processus de compilation, leur utilité, le 
fonctionnement en détail de celles-ci

- toutes les options possibles, chacune étant expliquée en profondeur
- des explications sur l'impact hardware lié à la compilation
- la compilation croisée
- les bonnes pratiques de programmation (exemple: indenter son code et 
le commenter)


Je vous remercie d'avance pour votre aide.

Re: Upgrade Jessie: le montage du disque échoue après 90s

[Jean-Michel OLTRA]

Bonjour,


Le mercredi 23 décembre 2015, Olivier a écrit...


> A start job is running for dev-mapper-home (15s/1mn90)
> La durée devant la barre oblique jusqu'à atteindre la valeur limite de 90s
> puis je me retrouve avec un prompt de démarrage d'urgence (le terme vient
> de moi) où je dois saisir le mot de passe de root.

> Une piste ?

Regarde /etc/fstab pour voir si il y aurait une raison pour faire
échouer le montage. Du style, ça m'est arrivé, montage d'un périphérique
amovible qui n'est pas présent au boot.

-- 
jm

Re: Need a calculator that knows about coulombs

[David Christensen]

On 12/23/2015 02:09 AM, Gene Heskett wrote:

Ahh, but its being fed to a voltage-doubler with schottky diodes ...
The PSU has a quite high
capacitance input filter, and without this soft start timed power up,
needs a 30 amp breaker in the service in order for the breaker to
withstand the power up event. NEC says I can't service a duplex with
more than a 15 amp breaker.  The actual draw, once powered up, doesn't
exceed 15 amps even with a vacuum cleaner being powered by a similar
circuit enabled that is plugged into this same 4-plex.
All part of a CNC milling machine setup. ...


So, you want to connect a 120 VAC, 30 A CNC milling machine and a 120 
VAC, unknown current vacuum cleaner to a single 120 V 15 A branch circuit.



I suppose you could read a power electronics book, and design and build 
a device that accepts 120 VAC, 15 A steady-state input and provides 120 
VAC, 15 A steady-state output with the ability to output much more 
current for short periods.  Such a product may already exist.  If not, 
you might be able to make and sell them.



But, the KISS solution is obvious -- install a 30 ampere circuit 
breaker, wiring, and receptacle for the CNC machine (or hire an 
electrician to do so).



David

Re: wheezy's bison is too old, need 2.6 before qucs-0.18 will build

[Gene Heskett]

On Wednesday 23 December 2015 13:15:16 Dan Ritter wrote:

> On Wed, Dec 23, 2015 at 01:12:45PM -0500, Gene Heskett wrote:
> > Is it possible to get a later bison than the 2.5 wheezy uses from a
> > comnpatible repo? Qucs needs 2.6.
>
> It's not in wheezy-backports, and Jessie uses a 3.x version.
>
> Might be time to build your own.
>
> -dsr-
That in the past has been quite a dog chasing his own tail scene, but 
I'll be dipped, I removed the 2 bison packages installed,  downloaded 
the tarball of 2.6.1 from gnu.org, unpacked it,  issued a

./configure && make && sudo make install

and got a home run 

So the same command line is slowly building qucs, so far no surprises. 
But it WILL be a while, that tarball is 45 megabytes.  Other than 
building kde, using konstruct once quite a few years ago, I do not 
recall building anything with that big a tarball in one gz'd piece.
I should have wrapped in it a timer. Hindsight, 20-05 everytime. :) 

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: wheezy's bison is too old, need 2.6 before qucs-0.18 will build

[John Hasler]

Have you looked at the circuit simulator software in the Debian archive
such as geda, ngspice, gnucap, easyspice, fritzing, and octave-ocs?
-- 
John Hasler 
jhas...@newsguy.com
Elmwood, WI USA

Re: Upgrade Jessie: le montage du disque échoue après 90s

[jdd]

Le 23/12/2015 18:29, Olivier a écrit :

Bonjour,

J'ai tenté de mettre à jour une machine de Wheezy à Jessie.
L'opération s'est déroulé sans difficulté apparente sinon qu'au 1er
démarrage, je vois un message du type:
A start job is running for dev-mapper-home (15s/1mn90)


j'ai eu un message analogue récemment (sur une openSUSE), c'était une 
ligne dans fstab qui pointait vers une partition inexistante - 90 s de 
perdues...


il m'a suffi de retirer la ligne (ou de la mettre en remarque au cas où)

jdd

Re: Upgrade Jessie: le montage du disque échoue après 90s

[Olivier]

Merci beaucoup pour vos suggestions.

mon oeil prophane ne voit aucune anomalie dans /etc/fstab.
Dans les logs, je vois l'échec successif des 4 partitions LVM var, usr, tmp
et home avec un message comme
"Timed out for device dev-mapper-vg01\x2dusr.device"

Ces partitions figurent comme ceci dans /etc/fstab:
/dev/mapper/vg01-home   /home ext4   defaults   0  2

Je note que la partition root ne semble pas poser de problème (pas d'erreur
dans les logs). Elle est présente comme ceci:
/dev/mapper/vg01-home   /home ext4   errors=remount-ro   0  1

Alors ?

Le 23 décembre 2015 à 18:39, Jean-Michel OLTRA <
jm.oltra.antis...@espinasse.net> a écrit :

>
> Bonjour,
>
>
> Le mercredi 23 décembre 2015, Olivier a écrit...
>
>
> > A start job is running for dev-mapper-home (15s/1mn90)
> > La durée devant la barre oblique jusqu'à atteindre la valeur limite de
> 90s
> > puis je me retrouve avec un prompt de démarrage d'urgence (le terme vient
> > de moi) où je dois saisir le mot de passe de root.
>
> > Une piste ?
>
> Regarde /etc/fstab pour voir si il y aurait une raison pour faire
> échouer le montage. Du style, ça m'est arrivé, montage d'un périphérique
> amovible qui n'est pas présent au boot.
>
> --
> jm
>
>

Re: [HS] Comment mesurer simplement la performance d'un PC

[maderios]

On 12/23/2015 07:05 PM, Pascal Obry wrote:
Bonjour


Simple et efficace, toutes les personnes que j'ai migrées dans ma
famille (Ubuntu pas Debian) ne me demande plus rien parce que ça marche


Heu, ubuntu, ça marche jusqu'à un certain point... J'ai tenté sur 
plusieurs années dont en 2015 d'utiliser ubuntu et j'en suis arrivé à la 
conclusion suivante: ubuntu ressemble à Debian mais à une bien mauvaise 
Debian. Pour moi, ubuntu ,n'est qu'un bricolage, astucieux certes, mais 
un mauvais bricolage. Ne parlons pas des dépôt ppa où règnent le tout et 
le n'importe quoi. Les gens qui installent ubuntu souhaitent en général 
une distro très simple à utiliser et surtout assez avancée par rapport à 
Debian Stable. Ils se plantent royalement.  Je leur conseillerai plutôt 
d'utiliser Fedora, distribution grand public relativement "en avance" et 
très bien maintenue. Linus Torvalds l'utilise, ce n'est pas un hasard.


-
Maderios

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Eduardo Rios]

El 23/12/15 a las 19:27, Camaleón escribió:

El Wed, 23 Dec 2015 18:57:23 +0100, Eduardo Rios escribió:


El 23/12/15 a las 17:07, Camaleón escribió:


(...)


Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. Se
queda un proceso cerrandose, que no consigo saber cual es, con una
cuenta de un minuto y medio hacia atrás, y conforme acaba, sigue
añadiendo tiempo...

Me parece que tiene que ver con login.


Prueba a cerrar la sesión gráfica y reiniciar/apagar desde una consola.


Arrancando con el kernel en recovery mode, sin que se ejecute el entorno
gráfico (GNOME 3), apaga sin problemas. Si ejecuto el entorno gráfico,
falla.


Hum... curioso. Entonces ya no se trata sólo del kernel. Inicia
normalmente con una sesión gráfica, ciérrala y apaga desde ahí.


Nada, con sesión gráfica, y kernel 4.3, se queda colgado. No completa el 
apagado o reinicio, y no llego a ver que proceso es el que lo impide...


¿Que registro o fichero debería mirar para poder hacerme una idea?




Yo ahora no puedo volver al kernel anterior, a no ser que coja el 3.16
de Jessie o el 4.20 de los backports de Jessie, pero no el de Stretch.


¿Mande? :-?

Puedes instalar el kernel anterior como siempre, desde los paquetes de
snapshot:

http://snapshot.debian.org/binary/linux-image-4.2.0-1-amd64/


Tengo la sensación de que esto ya me lo has dicho más de una vez... y
siempre se me olvida esta posibilidad...

Gracias, ya lo he instalado, y efectivamente, con este kernel todo
vuelve a funcionar correctamente.

Algo hay en el kernel 4.3 que no le gusta a GNOME :-P


A mí no me pasa. Tras actualizar testing (había una buena montonada de
paquetes, entre ellos el kernel y systemd) puedo apagar y reiniciar sin
que se quede colgado. Sí, también con GNOME :-)



Pues entonces ya si que estoy descolocado, ya que systemd si que lo 
tenía ya actualizado, y sólo me ocurre con el kernel 4.3, con el kernel 
4.2 funciona sin problemas.


Por curiosidad, he probado con el kernel 4.4 (experimental) y también me 
falla...



--
www.LinuxCounter.net

Registered user #369215

Re: wheezy's bison is too old, need 2.6 before qucs-0.18 will build

[Dan Ritter]

On Wed, Dec 23, 2015 at 01:12:45PM -0500, Gene Heskett wrote:
> Is it possible to get a later bison than the 2.5 wheezy uses from a 
> comnpatible repo? Qucs needs 2.6.
> 

It's not in wheezy-backports, and Jessie uses a 3.x version.

Might be time to build your own.

-dsr-

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Camaleón]

El Wed, 23 Dec 2015 18:57:23 +0100, Eduardo Rios escribió:

> El 23/12/15 a las 17:07, Camaleón escribió:

(...)

>>> Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. Se
>>> queda un proceso cerrandose, que no consigo saber cual es, con una
>>> cuenta de un minuto y medio hacia atrás, y conforme acaba, sigue
>>> añadiendo tiempo...
>>>
>>> Me parece que tiene que ver con login.
>>
>> Prueba a cerrar la sesión gráfica y reiniciar/apagar desde una consola.
> 
> Arrancando con el kernel en recovery mode, sin que se ejecute el entorno
> gráfico (GNOME 3), apaga sin problemas. Si ejecuto el entorno gráfico,
> falla.

Hum... curioso. Entonces ya no se trata sólo del kernel. Inicia 
normalmente con una sesión gráfica, ciérrala y apaga desde ahí.

>>> Yo ahora no puedo volver al kernel anterior, a no ser que coja el 3.16
>>> de Jessie o el 4.20 de los backports de Jessie, pero no el de Stretch.
>>
>> ¿Mande? :-?
>>
>> Puedes instalar el kernel anterior como siempre, desde los paquetes de
>> snapshot:
>>
>> http://snapshot.debian.org/binary/linux-image-4.2.0-1-amd64/
> 
> Tengo la sensación de que esto ya me lo has dicho más de una vez... y
> siempre se me olvida esta posibilidad...
> 
> Gracias, ya lo he instalado, y efectivamente, con este kernel todo
> vuelve a funcionar correctamente.
> 
> Algo hay en el kernel 4.3 que no le gusta a GNOME :-P

A mí no me pasa. Tras actualizar testing (había una buena montonada de 
paquetes, entre ellos el kernel y systemd) puedo apagar y reiniciar sin 
que se quede colgado. Sí, también con GNOME :-)

Saludos,

-- 
Camaleón

Re: A start job is runing for device ....

[merlinva2012]

Muchas gracias


> El Tue, 22 Dec 2015 15:30:15 -0500, merlinva2012 escribió:
>
>> Disculpen mis pocos conocimientos, como reflejo ese cambio en fstab
>
> Simplemente tienes que cambiar el identificador antiguo por el nuevo, es
> decir:
>
> Antiguo:
>
> # swap was on /dev/sda7 during installation
> UUID=f5761bf0-d589-4917-9aae-844333e48f47 noneswapsw
>   0   0
>
> Nuevo:
>
> # swap was on /dev/sda7 during installation
> UUID=a47e253d-3505-4fca-ac1d-772064be9595 noneswapsw
>   0   0
>
> Saludos,
>
> --
> Camaleón
>
>



--
Este mensaje le ha llegado mediante el servicio de correo electronico que 
ofrece Infomed para respaldar el cumplimiento de las misiones del Sistema 
Nacional de Salud. La persona que envia este correo asume el compromiso de usar 
el servicio a tales fines y cumplir con las regulaciones establecidas

Infomed: http://www.sld.cu/

Re: [HS] Comment mesurer simplement la performance d'un PC

[Daniel Huhardeaux]

Le 23/12/2015 19:05, Pascal Obry a écrit :

Le mercredi 23 décembre 2015 à 18:57 +0100, Olivier a écrit :

Bonjour,

Avec les fêtes de Noël, j'anticipe des demandes du style "mon PC
(sous Windows) rame, veux-tu regarder ce qui s'y passe ?".



...

Qu'en pensez-vous ?

Je vois ce que tu veux dire. A Noël mais les week-ends dans la famille
j'étais le réparateur de PC :) Après quelques années de galère avec
Windows le deal était simple "je te passe sous Linux ou tu trouves
quelqu'un d'autre, je ne touche plus aux machines Windows".


+1

[...]

--
Daniel

Re: Upgrade Jessie: le montage du disque échoue après 90s

[Christophe De Natale]

Le mercredi 23 décembre 2015 à 19:17 +0100, Olivier a écrit :
> Merci beaucoup pour vos suggestions.
> 
> 
> mon oeil prophane ne voit aucune anomalie dans /etc/fstab.
> 
> Dans les logs, je vois l'échec successif des 4 partitions LVM var,
> usr, tmp et home avec un message comme
> 
> "Timed out for device dev-mapper-vg01\x2dusr.device"
> 
> 
> Ces partitions figurent comme ceci dans /etc/fstab:
> 
> /dev/mapper/vg01-home   /home ext4   defaults   0  2
> 
> 
> Je note que la partition root ne semble pas poser de problème (pas
> d'erreur dans les logs). Elle est présente comme ceci:
> /dev/mapper/vg01-home   /home ext4   errors=remount-ro   0  1
> 
> 
> Alors ?

Où est la partition "/" dans fstab ?
Je demande car les deux lignes que tu indiques donnent /home ...

> 
> Le 23 décembre 2015 à 18:39, Jean-Michel OLTRA
>  a écrit :

Cordialement,

-- 
Christophe De Natale 

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 20:05:14 Bob Bernstein wrote:

> On Wed, 23 Dec 2015, John Hasler wrote:
> > John "Permits?  We don't need no stinkin permits." Hasler
>
> Reminds me of "Don't RTFM! Wing that sucker!"
>
> Haven't heard/seen that in a long time.
>
> And I have to say, this electrical stuff is a lot sexier than
> poopy linux stuff!

Try telling that to a couple school bus-loads of 7nth graders.  They 
thought that was the best standup comedy they'd heard in ages.  Its no 
wonder that people like me get accused of walking on water, we are a 
dying breed.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Jose Maldonado]

El 23/12/15 a las 11:07, Eduardo Rios escribió:
> 
> Aviso por si acaso.
> 
> Los que tengáis Debian testing con kernel 4.2, si actualizáis al 
> kernel 4.3, tened la precaución de no desinstalar la versión 
> anterior demasiado pronto.
> 
> Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. 
> Se queda un proceso cerrandose, que no consigo saber cual es, con 
> una cuenta de un minuto y medio hacia atrás, y conforme acaba, 
> sigue añadiendo tiempo...
> 
> Me parece que tiene que ver con login.
> 
> Yo ahora no puedo volver al kernel anterior, a no ser que coja el 
> 3.16 de Jessie o el 4.20 de los backports de Jessie, pero no el de 
> Stretch.
> 

El kernel 4.3 tiene unos fallos bien extraños, en mi PC al menos,
compilarlo me deja sin poder usar VDPAU y otras extensiones de mi
gráfica Intel HD.

-- 
Dios en su Cielo, todo bien en la Tierra

Re: removing TexLive Docs packages

[Udyant Wig]

The aptitude command line I suggested removed such documentation packages as

texlive-fonts-extra-doc
texlive-fonts-recommended-doc
texlive-latex-extra-doc

apart from the science, pstricks, and pictures doc packages. The language
docs had to be handled specially because of the transition.
-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

Re: Attempt to Move Root

[Sven Hartge]

Nicolas George  wrote:
> Le duodi 2 nivôse, an CCXXIV, Sven Hartge a écrit :

>> And this is why I love the GPT. There is a defined space for the
>> bootloader to be and no nether region of swirly unknowness between the
>> MBR and the start of the first partition.

>> Also this: Sit back kids, Uncle Sven tells a story from the trenches of
>> the 1st GRUB war.
>> 
>> I was upgrading a remote server from Squeeze to Wheezy. This server uses
>> LVM on top of an MD-RAID1, /boot is included in / which is a LV. so GRUB
>> needs to know about MD and LVM (and the filesystem of / of course).
>> 
>> With Squeeze everything was fine and dandy.
>> 
>> But after upgrading to Wheezy, GRUB would no longer install into the
>> 31744 byte-sized space after the MBR. Its core.img with all needed
>> componenents was 12 bytes to large, about 60 bytes bigger than the one
>> from Squeeze!
>> 

>> What to do? Using the old one from Squeeze? Psshht, needing to hold the
>> old package for ever, maybe making the system unbootable in the worst
>> moment? Not an option!

> You seem to be missing something here: there is absolutely no
> requirement that the GRUB version installed as a package on the
> distribution is the same as the version installed as bootloader. You
> could have left the upgrade replace GRUB or even removed the package
> for GRUB, just leaving the old bootloader, that is not a problem.

Yes, but I wanted to be sure that there will be no suprises for me or
another administrator in the future. Having no GRUB package installed
would have deviated from the norm, could cause strange side-effects with
other packages or the packages manager and keeping the old version
installed would have been ugly.

The idea was to have a system which fits one of the server templates
used and not create another special snowflake which needs manual
attention every time.

>> But we have a MD-RAID! I removed one disk from the RAID, repartitioned
>> it as GPT, added a bios_grub partition of the right (and future-proof!)
>> size before the data partition, readded this to the running half of the
>> RAID, let the RAID resync, repeated the whole procedure with the other
>> disk, installed GRUB to its new home, rebooted while hoping/praying and
>> ... tadaaa ... the system came right up.

> The same thing would have worked with without GPT. Especially if you use a
> bios_grub partition instead of an EFI system partition.

Eh? I did use a bios_grub partition, because the server in question uses
a legacy BIOS to boot.

Grüße,
Sven.

-- 
Sigmentation fault. Core dumped.

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 20:33:57 John Hasler wrote:

> Bob Bernstein writes:
> > And I have to say, this electrical stuff is a lot sexier than poopy
> > linux stuff!
>
> I could bore you to tears in 15 minutes with anecdotes about hospital
> wiring design.

Having read some of the extra's for that, its no wonder the bid estimates 
are 400% of what the takeoff guy totals up.  And my little red pocket 
hot wire sniffer still manages to go berzerk when within sensing 
distance to some of the innocent looking stuff sitting on the prep rooms 
counters.  I found 4 of those flashlight things they put a plastic cup 
over to look into an ear, that could be lethal so far.  All maintained 
by some contractor & the Doc his self was powerless to do anything about 
it.  Scary, tain't it?

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Need a calculator that knows about coulombs

[Bob Bernstein]

On Wed, 23 Dec 2015, Gene Heskett wrote:


Try telling that to a couple school bus-loads of 7nth graders.


I am struggling to understand what possible, unholy, 
agglomeration of powers and principalities might ever induce me 
even to get that close to a couple of 'em! I'll take a pass on 
that if it's okay with _everyone_ around here.


Its no wonder that people like me get accused of walking on 
water, we are a dying breed.


d00D! You nailed it! 

--
Bob Bernstein

Re: Need a calculator that knows about coulombs

[Bob Bernstein]

On Wed, 23 Dec 2015, John Hasler wrote:


John "Permits?  We don't need no stinkin permits." Hasler


Reminds me of "Don't RTFM! Wing that sucker!"

Haven't heard/seen that in a long time.

And I have to say, this electrical stuff is a lot sexier than 
poopy linux stuff!


--
Bob Bernstein

Re: removing TexLive Docs packages

[The Wanderer]

On 2015-12-23 at 16:48, Doug wrote:

> On 12/23/2015 01:45 AM, Sivaram Neelakantan wrote:
> 
>> I installed TexLive recently and during one of the upgrades, the
>> entire texdoc package got installed too.  that is humoungous and
>> I'd like to remove the doc packages alone and also stop future
>> installs of the same type whenever I Upgrade TexLive.
>> 
>> Could someone please suggest a way?  I'm on debian test release, if
>> that is of any help.
> 
> If the .doc packages are all in one directory, then it's easy: when
> you're in that directory, issue: rm -fr *.doc or if they are called
> .txt, then use that-- whatever suffix the files use.

This is not a way to remove a package. It is a way to delete files which
were installed by a package (and won't work correctly even for that in
this case, since this package's files not only use multiple file
extensions but are spread throughout a fairly sizable directory tree),
but is not recommended in pretty much any case.

It will also not prevent the package's files from getting reinstalled
later on, so it doesn't really address the question which was asked.


The correct approach would be to remove the appropriate texlive-lang-*
package (e.g., texlive-lang-english) which contains the documentation,
using e.g. 'apt-get remove texlive-lang-english', and then blacklist the
package from being installed using the method suggested by Osamu Aoki.

(There is no 'texlive-doc' package in current testing as far as I can
see, and the 'texlive-doc-en' package appears to be a transitional dummy
package; it appears to be superseded by texlive-lang-english, so I infer
that that is the documentation package in question. Note that because of
this naming difference, the removal command suggested by Udyant Wig
probably wouldn't get the job done, at least not by itself.)

-- 
   The Wanderer

The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man. -- George Bernard Shaw



signature.asc
Description: OpenPGP digital signature

Re: Need a calculator that knows about coulombs

[Gary Roach]

On 12/22/2015 06:02 PM, John Hasler wrote:

Gene Heskett writes:

In this case, the size of a capacitor hooked to a square wave source,
and I want to know how much charge is transfered for every full cycle
of the input square wave.

Zero assuming linear source and load impedence.
And assuming the square wave is symetrical about zero. If I recall Q=CV 
where C is in farads, V in volts and Q is in coulombs. With R (circuit 
resistance) = zero. The Voltage on C will instantly be the supply 
voltage an Q=CV applies. In short, it is a steady state problem. If R is 
not zero then there is a charging time constant involved. But if the on 
period of the square wave is at least 5 times the time constant of the 
circuit, it's still a steady state problem. As I recall the TC = RC 
seconds. If the period of the wave is less than 5 times the TC then 
things get more complicated. Look up time constant in wikipedia will 
probably give you the answer. In any event, any scientific calculator 
will do the job.


Gary R.

Re: Need a calculator that knows about coulombs

[John Hasler]

Gary Roach writes:
> And assuming the square wave is symetrical about zero.

The steady-state net charge transferred per cycle will be zero
regardless of waveform.  It's a capacitor.  No DC component.
-- 
John Hasler 
jhas...@newsguy.com
Elmwood, WI USA

Re: no response from listmaster

[Bob Bernstein]

On Wed, 23 Dec 2015, Steve Kleene wrote:

Thank you very much to all of you who posted or wrote with 
helpful and useful suggestions.


I think a little acknowledgement of the contribution of those of 
us who can no longer be seduced or cajoled into being "helpful 
and useful" would be in order.


They too serve who just like to stand around and kibbitz.

No good deed goes unpunished.

--
Bob Bernstein

Re: Need a calculator that knows about coulombs

[John Hasler]

Bob Bernstein writes:
> And I have to say, this electrical stuff is a lot sexier than poopy
> linux stuff!

I could bore you to tears in 15 minutes with anecdotes about hospital
wiring design.
-- 
John Hasler 
jhas...@newsguy.com
Elmwood, WI USA

Re: Achat d'une imprimante - demande de conseils

[Gaëtan PERRIER]

Le Mon, 21 Dec 2015 16:22:04 +0100
Jean-Marc  a écrit:

> salut la liste,
> 
> J'envisage l'achat d'une imprimante.
> 
> Un modèle qui me permettrait aussi de scanner mes documents.
> À connecter sur mon réseau domestique.
> 
> Vu un post récent relatif à des soucis de configuration, je me suis dit
> qu'une demande de retour d'expérience serait peut-être utile.
> 
> Le maga où je vais me fournir me conseille une Epson (ex. Epson
> Multifonctions WF-3640DTWF).
> 
> Mais il peut aussi me fournir d'autres marques.
> 
> Merci d'avance pour vos conseils et retour d'expérience.
> 

Après avoir très longtemps eu une imprimante HP Deskjet 5652 fonctionnant avec
les pilotes libre HP + un scanner à plat Epson fonctionnant avec un pilote non
libre Epson, j'ai été obligé de me séparer du scanner lors du
passage en 64 bits car Epson s'il fournit des pilotes linux ne les maintient
pas dans le temps et assez rapidement on se retrouve avec des pilotes
inutilisables.
N'ayant plus qu'un usage bureautique, j'ai donc remplacé le tout par une
multifonctions HP Envy 7640 fonctionnant avec des pilotes libres et donc
pérennes. J'en pleinement satisfait.
Perso à part pour des exigences particulières, en matière d'impression photo
par exemple, je privilégie HP qui est, me semble-t-il toujours, le seul
fabricant à fournir des pilotes libres pour la majorité de ses imprimantes et
multifonctions.

Gaëtan

Re: Need a calculator that knows about coulombs

[John Hasler]

Gene H writes:
> Having read some of the extra's for that, its no wonder the bid
> estimates are 400% of what the takeoff guy totals up.

We had an in-house construction operation for small projects of the sort
I designed.  They were mostly pretty good but my biggest problems came
from their attempts to save money, such as using left-over 90 ohm IT
coax for a CATV project instead of the 70 cable I had specified.  The
hospital was horribly mismanaged, though.

> And my little red pocket hot wire sniffer still manages to go berzerk
> when within sensing distance to some of the innocent looking stuff
> sitting on the prep rooms counters.  I found 4 of those flashlight
> things they put a plastic cup over to look into an ear, that could be
> lethal so far.

No, not really.  That devices is only useful for finding energized wires
behind walls.  It tells you nothing about lethality.  All sorts of
harmless things can set it off.
-- 
John Hasler 
jhas...@newsguy.com
Elmwood, WI USA

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 21:19:33 John Hasler wrote:

> Gene H writes:
> > Having read some of the extra's for that, its no wonder the bid
> > estimates are 400% of what the takeoff guy totals up.
>
> We had an in-house construction operation for small projects of the
> sort I designed.  They were mostly pretty good but my biggest problems
> came from their attempts to save money, such as using left-over 90 ohm
> IT coax for a CATV project instead of the 70 cable I had specified. 
> The hospital was horribly mismanaged, though.
>
> > And my little red pocket hot wire sniffer still manages to go
> > berzerk when within sensing distance to some of the innocent looking
> > stuff sitting on the prep rooms counters.  I found 4 of those
> > flashlight things they put a plastic cup over to look into an ear,
> > that could be lethal so far.
>
> No, not really.  That devices is only useful for finding energized
> wires behind walls.  It tells you nothing about lethality.  All sorts
> of harmless things can set it off.

My final test for potential lethality is to make sure I am insulated, 
then brush the back of my hand against it very gently. If it feels like 
it is vibrating as the back of your hand slides against it, its too hot 
to get between it and a grounded object.

The back of ones hand is amazingly sensitive to that sort of thing, and 
it might save your life to remember that, everybody reading this.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Need a calculator that knows about coulombs

[John Hasler]

Gene H writes:
> Here in Wv, jumper cables across the meter socket have been a problem,
> so a broken seal on the meters retaining ring is a felony. Its also a
> felony in several other states I have lived and worked in.

Well, sure.  When I rewired the farm with buried cable and put in the
new service and meter socket the Excel guys who plowed in the
underground drop plugged in the new meter and put on a seal.  This was
all coordinated with the re-routing of their feeder from across my farm
to along the road.  Breaking the seal is not, in and of itself, a crime
here, though.  Jumpering the meter is theft, of course.
-- 
John Hasler 
jhas...@newsguy.com
Elmwood, WI USA

Re: Need a calculator that knows about coulombs

[Anders Andersson]

http://electronics.stackexchange.com/

Hope this helps.

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 19:25:40 John Hasler wrote:

> Gene H writes:
> > Here in Wv, jumper cables across the meter socket have been a
> > problem, so a broken seal on the meters retaining ring is a felony.
> > Its also a felony in several other states I have lived and worked
> > in.
>
> Well, sure.  When I rewired the farm with buried cable and put in the
> new service and meter socket the Excel guys who plowed in the
> underground drop plugged in the new meter and put on a seal.  This was
> all coordinated with the re-routing of their feeder from across my
> farm to along the road.  Breaking the seal is not, in and of itself, a
> crime here, though.  Jumpering the meter is theft, of course.

Which all boils down to "when in Rome..." ;-)

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 17:57:02 Gary Roach wrote:

> On 12/22/2015 06:02 PM, John Hasler wrote:
> > Gene Heskett writes:
> >> In this case, the size of a capacitor hooked to a square wave
> >> source, and I want to know how much charge is transfered for every
> >> full cycle of the input square wave.
> >
> > Zero assuming linear source and load impedence.
>
> And assuming the square wave is symetrical about zero.

plus or minus, at random, but  within 10 u-secs of 50%.

> If I recall 
> Q=CV where C is in farads, V in volts and Q is in coulombs. With R
> (circuit resistance) = zero. The Voltage on C will instantly be the
> supply voltage an Q=CV applies. In short, it is a steady state
> problem. If R is not zero then there is a charging time constant
> involved.

> But if the on period of the square wave is at least 5 times 
> the time constant of the circuit, it's still a steady state problem.

> As I recall the TC = RC seconds. If the period of the wave is less
> than 5 times the TC then things get more complicated. Look up time
> constant in wikipedia will probably give you the answer. In any event,
> any scientific calculator will do the job.

I was hoping to get that sort of an answer, but my button pushing on a 
TI-30X||S very rapidly degenerates into answers that are a factor of at 
least 100 million from something useful.  Sure t=rc, where c is in 
farads and t is in seconds, but r in this case, in series with the 
square wave input and Cp is an unknown.

I now have a test wire on the BoB that I was using to watch the signal 
come and go on queue with a Ds101 pocket scope, essentially proving 
my .hal chain of command works, but that was as far as I got today, I'd 
found some 2000 grit wet-r-dry and seeing how that works to level up an 
air brush laid but spotty finish on some poor mahogany, and busy putting 
drops in the XYL's eyes breaks my chain of thought.  She's had cataract 
operations on both eyes in the last 10 days.  First one is working 
great, but the jury is still out on the 2nd one yet.

> Gary R.


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 21:07:34 Bob Bernstein wrote:

> On Wed, 23 Dec 2015, Gene Heskett wrote:
> > Try telling that to a couple school bus-loads of 7nth graders.
>
> I am struggling to understand what possible, unholy,
> agglomeration of powers and principalities might ever induce me
> even to get that close to a couple of 'em! I'll take a pass on
> that if it's okay with _everyone_ around here.
>
Amazingly, they actually paid a reasonable level of attention as I was 
giving them a synopsis of how television actually worked, in words they 
should understand.  It wasn't until I made the statement that I was 
fairly well paid, and by the time I am ready to retire, I'll have some 
input into choosing my replacement, and it would be nice to have a few 
of them in the stack of resumes on my desk, nipping at my heels to get 
such a job.  The news studio we were in exploded.  I asked why, and one 
boy, apparently accustomed to being the class clown, said "who in his 
right mind, would want such a job?" I replied, just loud enough he heard 
me, "you, if you can muster the IQ it takes, but you just demoed that 
you don't". 65 kids were holding their breath for the next few seconds 
but he had no reparte to that.

I came away with a lot less respect for the generation that will, or is, 
now running the show.

> > Its no wonder that people like me get accused of walking on
> > water, we are a dying breed.
>
> d00D! You nailed it! 
 
I'd like to think so.  My youngest, now north of 30, introduced me to the 
rest of the gang in his place of work, including his employer, by 
stating that "in any building I was in, my dad is the smartest one in 
the building."  He's obviously easily impressed.  And despite that it 
has happened in similar words before, it took me by total surprise.

How many others here can claim to have wired the house his father was 
building in 1946, at the age of 12.  How many others can claim that the 
tv cameras on the Trieste, when it went down into the mohole in Feburary 
1960, 37000 feet deep in the pacific, had their finger prints on the 
pcb's in it?  Its a pretty exclusive club and I would recognize most of 
the names yet.  Or tested the fuel pressure regulators for the original 
rocket (Atlas?) that gave John Glenn his first ride to the edge of 
space?

There has been quite a list of BTDT's over the last 67 years while trying 
to earn a living, not all of which were so "romantic", but you do what 
you have to do to keep groceries in the house & the utilitis turned on.

I guess that is one of the trade marks of a "doer".  And I'm 
still 'doing'.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Need a calculator that knows about coulombs

[Gene Heskett]

On Wednesday 23 December 2015 14:33:39 John Hasler wrote:

> Gene H writes:
> > The only thing I needed an electrician for was to do the drop seal
> > break & disconnect, install a heavier drop to the new meterhead, the
> > inspector came...
>
> Electricians, permits and inspectors eh?  I guess when you have
> oppressive government you just have to live with these things.  I
> redid the farm with buried cable and put in a new service and all I
> had to do was give Excel a written assertion that I had complied with
> code.

Here in Wv, jumper cables across the meter socket have been a problem, so 
a broken seal on the meters retaining ring is a felony. Its also a 
felony in several other states I have lived and worked in.

But to my knowledge, the NEC code has only been in effect since the later 
80's. You would be aghast at some stuff thats grandfathered in, lioke 
our old transmitter site. 4 pieces of 750mcm alu come from the 
substation pole, with no building disconnect between them and the hot 
side of a GE AK-225 3 phase plate breaker/relay, which feeds a 50kw 
transformer delivering a rectified 7200 volts for the transmitters final 
amplifiers.  We've burned out that 750 mcm and the entry weatherhead 
twice on my watch because Burndy can't make a crimp sleeve for that size 
that maintains a 'gas tight' connection to an alu cable over the years. 
Its the power companies cable, but copper costs lots more so they will 
just replace it when it gets cooked. The list at that site goes on, but 
its now retired and the only power on is for the tower lights, still 
required.

This house, build as a kit by National Homes in 1975, is not and never 
will be 100% compliant to the NEC.  When we had an extra fire door 
installed as an escape route in the back bedroom, I had the installer 
add a duplex on each side of it because every other duplex in the whole 
house is mid-wall and totally in-accessible without moving hundreds of 
lbs of furniture. Just to plug in the vacuum cleaner?  Screw 'em, I'll 
put them where they CAN be used. Its paid for, all ours, and well 
insured.  I treat it like it was Los Vegas, what happens here, stays 
here.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: Re: Recovering from Debian Wheezy RAID-1

[Narūnas]

> I don't see Debian doing anything wrong. fdisk showing a 2.3T
> partition I am assuming comes on your Arch Linux disk and is a result
> of it using the wrong block size. I'm not sure if this is due to the
> use of a USB adapter.
> 
> mdadm -E /dev/sdb should fail because /dev/sdb is not a RAID device.
> mdadm -E /dev/sdb1 should work.

Hi,

I tried it on debian Jessie (different machine) and ended up with the same 
results as on Archlinux - shuffled partition table, no md super block... This 
however didn't explained how then debian can boot at all when connected 
directly. So I bought new USB adapter and that was it, end of the story, debian 
didn't do anything wrong, all this fuss was caused by the malfunctioning USB 
adapter.

Thank you for your time.

Narūnas

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Eduardo Rios]

El 23/12/15 a las 21:21, Luis E. Arevalo R. escribió:

El 23 de diciembre de 2015, 17:02, Eduardo Rios > escribió:

Acabo de comprobar que si estando en la sesión gráfica, cierro la
sesión de usuario, y en la pantalla donde aparece el usuario donde
tocar para iniciar sesión, apago desde ahí, se apaga sin problemas.

Si intento apagar con la sesión de usuario iniciada, es cuando falla.


Otro dato a la causa: días anteriores no había tenido paciencia, ahora
tuve un poco y esperé. En todos los casos (reinicio por consola, sin
loguear y logueado; apagado por consola, sin loguear y loguead) el
sistema se reinicia o se apaga, según corresponda, pero demora poco más
de 2 minutos.

Quizá lo mío sea otro problema, pues tengo en el /fstab/ tres líneas
montando un Windows Server, y en una de las reiniciadas, me apareció el
siguiente mensaje:

*A stop job is running for /mnt/ws (tiempo parcial / tiempo total)*

En otros me aparececió un mensaje que decía que el servidor (windows)
luego de 120s no estaba respondiendo. Luego de eso comenzaba el proceso
de reiniciado o apagado.

Todo esto con el Kernel 4.3. Revisaré con detención el log para ver si
pillo algo.


En mi caso, he podido averiguar a través de consola virtual que el 
mensaje que mantiene el equipo encendido bloqueado es:


A stop job is running for Login Service

Y no acaba nunca. Cada minuto y medio de espera, añade otro minuto y medio.


--
www.LinuxCounter.net

Registered user #369215

Re: Upgrade Jessie: le montage du disque échoue après 90s

[Jean-Michel OLTRA]

Bonjour,


Le mercredi 23 décembre 2015, Olivier a écrit...


> mon oeil prophane ne voit aucune anomalie dans /etc/fstab.
> Dans les logs, je vois l'échec successif des 4 partitions LVM var, usr, tmp
> et home avec un message comme
> "Timed out for device dev-mapper-vg01\x2dusr.device"

> Ces partitions figurent comme ceci dans /etc/fstab:
> /dev/mapper/vg01-home   /home ext4   defaults   0  2

> Je note que la partition root ne semble pas poser de problème (pas d'erreur
> dans les logs). Elle est présente comme ceci:
> /dev/mapper/vg01-home   /home ext4   errors=remount-ro   0  1

Il me semble bien avoir eu quelque chose comme ça, et j'avais posté sur
la liste. Tu pourrais rechercher le fil.

Quel noyau ?
Qu'as tu pour use_lvmetad dans /etc/lvm/lvm.conf ?


-- 
jm

Re: removing TexLive Docs packages

[Doug]

On 12/23/2015 01:45 AM, Sivaram Neelakantan wrote:

I installed TexLive recently and during one of the upgrades, the
entire texdoc package got installed too.  that is humoungous and I'd
like to remove the doc packages alone and also stop future installs
of the same type whenever I Upgrade TexLive.

Could someone please suggest a way?  I'm on debian test release, if
that is of any help.

  sivaram
  --



If the .doc packages are all in one directory, then it's easy: when you're in 
that directory, issue: rm -fr *.doc or if they are called .txt, then use that--
whatever suffix the files use.

--doug

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Eduardo Rios]

El 23/12/15 a las 16:37, Eduardo Rios escribió:


Aviso por si acaso.

Los que tengáis Debian testing con kernel 4.2, si actualizáis al kernel
4.3, tened la precaución de no desinstalar la versión anterior demasiado
pronto.

Ahora, con el kernel 4.3 no consigo apagar o reiniciar el equipo. Se
queda un proceso cerrandose, que no consigo saber cual es, con una
cuenta de un minuto y medio hacia atrás, y conforme acaba, sigue
añadiendo tiempo...


Acabo de comprobar que si estando en la sesión gráfica, cierro la sesión 
de usuario, y en la pantalla donde aparece el usuario donde tocar para 
iniciar sesión, apago desde ahí, se apaga sin problemas.


Si intento apagar con la sesión de usuario iniciada, es cuando falla.


--
www.LinuxCounter.net

Registered user #369215

Re: Upgrade Jessie: le montage du disque échoue après 90s

[Jean-Michel OLTRA]

Bonjour,


Le mercredi 23 décembre 2015, Jean-Michel OLTRA a écrit...


> Il me semble bien avoir eu quelque chose comme ça, et j'avais posté sur
> la liste. Tu pourrais rechercher le fil.

https://lists.debian.org/debian-user-french/2015/07/msg00484.html

Mais la mise à jour de lvm2 avait solutionné le problème.

-- 
jm

Re: Debian testing y kernel 4.3 no apaga / reinicia el equipo

[Luis E. Arevalo R.]

El 23 de diciembre de 2015, 17:02, Eduardo Rios 
escribió:

> Acabo de comprobar que si estando en la sesión gráfica, cierro la sesión
> de usuario, y en la pantalla donde aparece el usuario donde tocar para
> iniciar sesión, apago desde ahí, se apaga sin problemas.
>
> Si intento apagar con la sesión de usuario iniciada, es cuando falla.
>

Otro dato a la causa: días anteriores no había tenido paciencia, ahora tuve
un poco y esperé. En todos los casos (reinicio por consola, sin loguear y
logueado; apagado por consola, sin loguear y loguead) el sistema se
reinicia o se apaga, según corresponda, pero demora poco más de 2 minutos.

Quizá lo mío sea otro problema, pues tengo en el /fstab/ tres líneas
montando un Windows Server, y en una de las reiniciadas, me apareció el
siguiente mensaje:

*A stop job is running for /mnt/ws (tiempo parcial / tiempo total)*

En otros me aparececió un mensaje que decía que el servidor (windows) luego
de 120s no estaba respondiendo. Luego de eso comenzaba el proceso de
reiniciado o apagado.

Todo esto con el Kernel 4.3. Revisaré con detención el log para ver si
pillo algo.

¡Saludos a todos!

-- 
Luis Eduardo Arevalo ReyesUser #354770
http://linuxcounter.net
Fono +56 9 54012831
http://www.luchox.cl

Re: no response from listmaster

[Steve Kleene]

On Wed, 23 Dec 2015 18:55:54 +, Lee Fuller  wrote:

> Sorry to drag up this old relic, Steve - did your investigation yield
> anything useful?
>
> Mail is a complicated subject so I'm keen to hear about the conclusion of
> issues like this.
>
> On 15 December 2015 at 23:14, Lisi Reisz  wrote:
>
> > On Tuesday 15 December 2015 19:29:50 Brian wrote:
> > > Pestering us
> > > appears to have its benefits. Just think, your response might have edged
> > > him towards it. :)
> >
> > To be fair, Brian, it wasn't pestering us that was complained about, it was
> > pestering the listmasters.  "Pestering" us was the right thing to do, and
> > as
> > you say helped the OP solve his problem.
> >
> > Lisi

Yes, the problem has been solved.  I posted as follows and added "[SOLVED]"
to the Subject in the header:

On Mon Dec 14 10:22:25 2015, I wrote:

> I have now been able to resubscribe.  What I did was to stop routing my mail
> through my employer's main router.  I believe that was the source of the
> bounces from improper processing of validation tags.  Dodging that router let
> me succeed in replying to confirm my subscription.
>
> I began relaying through this router ten years ago because a different
> recipient didn't like my originating IP.  If that's now busted again, I'll
> work through it.
>
> Thank you very much to all of you who posted or wrote with helpful and useful
> suggestions.

Re: no response from listmaster

[Lee]

Yay. Cheers for the info. Sorry I missed the original resolution.

On 23/12/15 20:45, Steve Kleene wrote:
> On Wed, 23 Dec 2015 18:55:54 +, Lee Fuller  wrote:
>
>> Sorry to drag up this old relic, Steve - did your investigation yield
>> anything useful?
>>
>> Mail is a complicated subject so I'm keen to hear about the conclusion of
>> issues like this.
>>
>> On 15 December 2015 at 23:14, Lisi Reisz  wrote:
>>
>>> On Tuesday 15 December 2015 19:29:50 Brian wrote:
 Pestering us
 appears to have its benefits. Just think, your response might have edged
 him towards it. :)
>>> To be fair, Brian, it wasn't pestering us that was complained about, it was
>>> pestering the listmasters.  "Pestering" us was the right thing to do, and
>>> as
>>> you say helped the OP solve his problem.
>>>
>>> Lisi
> Yes, the problem has been solved.  I posted as follows and added "[SOLVED]"
> to the Subject in the header:
>
> On Mon Dec 14 10:22:25 2015, I wrote:
>
>> I have now been able to resubscribe.  What I did was to stop routing my mail
>> through my employer's main router.  I believe that was the source of the
>> bounces from improper processing of validation tags.  Dodging that router let
>> me succeed in replying to confirm my subscription.
>>
>> I began relaying through this router ten years ago because a different
>> recipient didn't like my originating IP.  If that's now busted again, I'll
>> work through it.
>>
>> Thank you very much to all of you who posted or wrote with helpful and useful
>> suggestions.

Re: Achat d'une imprimante - demande de conseils

[jdd]

Le 24/12/2015 08:31, Thierry Boibary-Granier a écrit :


et je ne sais pas su on peut acheter des cartouches d'encre autres que
celle que HP préconise.


si. J'en ai trouvé sur price minister, très bon marché et pas mauvaises 
du tout



Ceci dit, HP est en générale une très bonne marque d'imprimante.


à une époque, HP sponsorisait un groupe de programmeurs Linux.

Poser la question aux gens de gutenprint, qui font aujourd'hui tous les 
pilotes linux, ils sont très réceptifs (ils m'ont fait un pilote pour 
une nouvelle Canon, ils ne demandent que quelques caractéristiques)


jdd

Re: Upgrade Jessie: le montage du disque échoue après 90s

[Georges]

Le Wed, 23 Dec 2015 18:29:44 +0100,

O a écrit :

> Bonjour,

 Bien le bonjour 

> 
> J'ai tenté de mettre à jour une machine de Wheezy à Jessie.
> L'opération s'est déroulé sans difficulté apparente sinon qu'au 1er
> démarrage, je vois un message du type:
> A start job is running for dev-mapper-home (15s/1mn90)

 J'ai eu le même problème et heureusement j'ai trouvé la réponse
 suivante d'un gentil Linuxien :

 A chaque installation le formatage de la partition swap change le
 UUID, donc les systèmes linux des autres partitions auront une swap
 avec un UUID faux. Donc un :  sudo blkid et une modification
 manuelle de fstab s'impose.

[ ]
> 
> 
> Une piste ?

 J'ai trois versions de Debian sur mon disque et si je réinstalle l'une
 d'elle, a chaque fois cette histoire de UUID changé par le formatage
 de la partition SWAP ou Racine m'oblige à utiliser blkid

> Slts

   Si sa peu aider  cordialement

Re: Fijar emparejamiento bluetooth

[Josu Lazkano]

El día 23 de diciembre de 2015, 16:05, Camaleón  escribió:
> El Tue, 22 Dec 2015 22:31:37 +0100, Josu Lazkano escribió:
>
>> El día 22 de diciembre de 2015, 15:57, Camaleón 
>> escribió:
>
> (...)
>
 Sigo investigando.
>>>
>>> Cuando no lo detecte, ejecútalo a mano "hciconfig hci0 up" a ver qué te
>>> dice. Si te devuelve algo del tipo "device busy" prueba reiniciando el
>>> demonio "service bluetooth restart". O también, como parece que sí
>>> reconoce el dispositivo y lo tiene como emparejado, puedes intentar
>>> simplemente conectarte.
>>>
>>> En cualquier caso, revisa siempre los registros en /var/log/syslog o el
>>> dmesg. Además, verifica los archivos de configuración "/etc/default/
>>> bluetooth" y "/etc/bluetooth/*.conf".
>>>
>> Gracias de nuevo.
>>
>> Apago el PC.
>>
>> Parece que no es tan sencillo, he leido un monton de guias pero no me
>> funciona de ninguna de las maneras.
>
> Si fuera sencillo no sería linux ;-)
>
>> Realmente el dispositivo se comporta como un teclado. La idea es que
>> cuando lo encienda el propio PC lo detect y conecte, sin hacer nada mas.
>
> Aquí entran dos cosas en juego y por este orden:
>
> 1/ Detección de hardware
> 2/ Eventos a ejecutar
>
> Si falla 1/ no hay 2/, así que resulta vital que el dispositivo se
> detecte correctamente para que después udev pueda ejecutar los comandos
> que le digas (emparejar, iniciar, etc...).
>
> Y si algo falla, tienes que revisar los registros para ver qué es y poder
> resolverlo.
>
> Saludos,
>
> --
> Camaleón
>

Gracias.

Lo de detectar el dispositivo lo hace bien.

Al final he asignado un par de botones del mando a distacia para
ejecutar unos comados:

Conectar: echo -e 'connect xx:xx:xx:xx:xx:xx' | bluetoothctl
Desconectar: echo -e 'disconnect xx:xx:xx:xx:xx:xx' | bluetoothctl

Gracias por todo, un saludo.

-- 
Josu Lazkano

Re: Achat d'une imprimante - demande de conseils

[Thierry Boibary-Granier]

Ayant travaille pour HP, involontairement, après le rachat de 
l'entreprise dans laquelle je travaillais, je peux vous dire que son 
système de management est américain, que la ou les fonctions auxquelles 
on vous affecte ne prenne guère en compte vos desiderata.


La hiérarchie est plus que pesante et il n'est pas question de discuter 
quoique ce soit. J'ai compris qu'ils ne voulaient plus de moi après le 
rachat de mon entreprise et qu'ils voulaient que je démissionne.

On a convenu d'un arrangement et je suis parti.

Je tiens à vous dire que seule la division imprimantes (imprimantes, 
toners et pièces de rechange) rapporte des profits énormes)  et que tout 
le reste est déficitaire (du moins il y a 10 ans:-D )


Vous comprendrez facilement que je ne ve veuille pas acheter HP. Comme 
je l'ai déjà dit les pièces sont bien plus chers que le reste du marché 
et je ne sais pas su on peut acheter des cartouches d'encre autres que 
celle que HP préconise. A voir car elles sont 4 fois plus chères que les 
autres.


Ceci dit, HP est en générale une très bonne marque d'imprimante.

Cordialement
T.


Le 24/12/2015 02:37, Gaëtan PERRIER a écrit :

Le Mon, 21 Dec 2015 16:22:04 +0100
Jean-Marc  a écrit:


salut la liste,

J'envisage l'achat d'une imprimante.

Un modèle qui me permettrait aussi de scanner mes documents.
À connecter sur mon réseau domestique.

Vu un post récent relatif à des soucis de configuration, je me suis dit
qu'une demande de retour d'expérience serait peut-être utile.

Le maga où je vais me fournir me conseille une Epson (ex. Epson
Multifonctions WF-3640DTWF).

Mais il peut aussi me fournir d'autres marques.

Merci d'avance pour vos conseils et retour d'expérience.


Après avoir très longtemps eu une imprimante HP Deskjet 5652 fonctionnant avec
les pilotes libre HP + un scanner à plat Epson fonctionnant avec un pilote non
libre Epson, j'ai été obligé de me séparer du scanner lors du
passage en 64 bits car Epson s'il fournit des pilotes linux ne les maintient
pas dans le temps et assez rapidement on se retrouve avec des pilotes
inutilisables.
N'ayant plus qu'un usage bureautique, j'ai donc remplacé le tout par une
multifonctions HP Envy 7640 fonctionnant avec des pilotes libres et donc
pérennes. J'en pleinement satisfait.
Perso à part pour des exigences particulières, en matière d'impression photo
par exemple, je privilégie HP qui est, me semble-t-il toujours, le seul
fabricant à fournir des pilotes libres pour la majorité de ses imprimantes et
multifonctions.

Gaëtan