Re: USB Install Fails, Complains about CD-ROM

[Mike Kupfer]

Kent West wrote:

> I have a Dell Latitude E7250 laptop. I'm trying to install Debian to it using 
> a USB stick.

[...]
> The real problem is that after going through the first three or four
> screens, the install halts, complaining about not being able to read
> the CD-ROM.

Yes, I ran into the same problem with my E7250, using a netinst image
and a live image.

When trying to boot the live image I noticed these messages on the
console:

  usb 1-2: device descriptor read/64, error -110
  ...
  usb 1-2: reset high-speed USB device number 2 using xhci_hcd

I tried booting from a different USB port; that worked once, but on a
subsequent attempt it failed with the same issue.

I did eventually get Debian installed, using a convoluted process that I
won't describe here because I suspect it's not relevant (see below).
I'm afraid that once I got Debian installed, I never went back to figure
out what was causing the earlier failures.

After reading your posting, I tried again to create a live USB stick.  I
used cp to copy the image to /dev/sdb, and I ran sync afterwards.  Same
failure.

I then tried using dd instead of cp, and I used a different USB port on
my desktop to write to the USB stick.  This time I could boot the live
image.  I checked kern.log, and it had

  usb 2-2: device descriptor read/64, error -110

but did not have the "reset" message.  (And I notice that this time
it's "usb 2-2" rather than "usb 1-2".)

I tried to boot off the USB stick a second time, and this time I got the
failure again.  So I suspect the problem has to do with peculiarities of
the E7250, rather than issues writing the USB stick.

I have a copy of kern.log from the first (successful) boot, and I have
the dmesg output from the second (failed) boot.  If anyone wants to look
at them, let me know.

mike

Re: rsync - newbie question

[rhkramer]

On Saturday, May 12, 2018 02:54:53 PM Richard Owlett wrote:
> But you started me thinking about how my use case differs from any
> normal user.

Yup, it appears so. ;-)

Re: minimal installation

[Felix Miata]

Dan Norton composed on 2018-05-12 17:47 (UTC-0400):

> Now, I want to update and upgrade and start to slowly add packages, but
> my network ignorance is getting in the way. 

> Tried to run "/sbin/ifconfig -a" but ifconfig is not found.

Deprecated over a decade ago, and finally dropped from basic installation. Use
its replacement ip instead.

> Please point me to how to get ethernet up. Thanks.

https://wiki.debian.org/NetworkConfiguration should do it.
-- 
"Wisdom is supreme; therefore get wisdom. Whatever else you
get, get wisdom." Proverbs 4:7 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

Re: minimal installation

[Dan Norton]

On Tue, 8 May 2018 00:10:50 +0100
Brian  wrote:

> On Mon 07 May 2018 at 18:37:16 -0400, Dan Norton wrote:
> 
> > On Mon, 7 May 2018 23:22:46 +0100
> > Brian  wrote:
> >   
> > > On Mon 07 May 2018 at 18:04:47 -0400, Dan Norton wrote:
> > >   
> > > > On Mon, 7 May 2018 10:42:17 -0400
> > > > Felix Miata  wrote:
> > > > 
> > > > > jpff composed on 2018-05-07 12:34 (UTC+0100):
> > > > > 
> > > > > > Felix Miata wrote:  
> > > > > 
> > > > > >> My Debian installations are all net installs that
> > > > > >> include  
> > > > > 
> > > > > >>tasks=standard
> > > > > >> base-installer/install-recommends=false  
> > > > > 
> > > > > >> on the kernel cmdline. I get nothing I don't need installed
> > > > > >> that way. Xorg and whatever else I need I get with apt*
> > > > > >> once booted normally.  
> > > > > 
> > > > > > That looks interesting; it attemts to answer my deep problem
> > > > > > about no X, xdm, xterm etc.  
> > > > > 
> > > > > > My problem nowis I do not know where/how to apply this.  I
> > > > > > have not seen any mention of a kernel command line in the
> > > > > > net install.  More please!  
> > > > > 
> > > > > I'm not up to speed on the conventional HOWTO for answering
> > > > > this. I rarely use conventional installation boot media.
> > > > > Virtually all my installs are in multiboot environments. This
> > > > > enables installation booting by using a bootloader already
> > > > > present on the system, by loading an installation kernel and
> > > > > initrd, complete with the parameters mentioned, plus several
> > > > > others, such as network configuration, and leaving off quiet
> > > > > and splash=silent.
> > > > > 
> > > > > IME, virtually any distro's installation media when its
> > > > > presence first appears on screen allows for some method of
> > > > > appending parameters to the kernel cmdline. It may be an "e"
> > > > > key, or an ESC key, or an up or down arrow key, or a function
> > > > > key, and likely will suggest how when its screen first
> > > > > paints.
> > > > 
> > > > That "kernel cmdline" phrase is a point of confusion. By editing
> > > > the "Install" item in the netinst menu, I can change:
> > > > 
> > > >   linux   /install.amd/vmlinuz vga=788 --- quiet
> > > > 
> > > > ...to this, all on one line:
> > > > 
> > > >   linux   /install.amd/vmlinuz vga=788 --- tasks=standard
> > > >   base-installer/install-recommends=false
> > > > 
> > > > Is that going to result in a minimum installation?
> > > 
> > > Leave off tasks=standard for more minimalness.
> > >   
> > 
> > This is getting exciting. Will I still get a command line?  
> 
> If you mean at first boot; yes.
> 
> I preseed in a file with "tasksel tasksel/first multiselect", which
> means no task is selected for installation. I've never done it from
> a prompt. Perhaps "tasks="?
> 

With the ethernet unplugged, installing with a netinst iso, I do get a
minimal installation. With ethernet plugged in, the installed kernel
can be booted repeatedly, presenting a login prompt each time. adduser,
mount, cat, lp... just work.

Now, I want to update and upgrade and start to slowly add packages, but
my network ignorance is getting in the way. 

Tried to run "/sbin/ifconfig -a" but ifconfig is not found. Anyway, ran:
  dhclient lo
  dhclient eth0
...with no effect (could not ping google)

Comparing files on this install with the same on this one (where I'm
writing this post):

/etc/network  # same contents on both after I added a link: 
run -> /network
/etc/network/interfaces.d  # empty on both
/run/network  # same on both
/var/log/syslog  # doesn't show anything obvious to me

root@debm:/etc/network# cat interfaces
# This file describes...
# and how to ...

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

root@debm:/# /etc/init.d/networking stop
Stopping networking (via systemctl): networking.service.
root@debm:/# /etc/init.d/networking start
Starting networking (via systemctl): networking.service.
root@debm:/# ping -c 3 http://www.google.com
ping: http://www.google.com: Temporary failure in name resolution

Please point me to how to get ethernet up. Thanks.

 - Dan

Re: rsync - newbie question

[Rick Thomas]

Yes, rsync has a “-x" option, which does the same thing as for cp: it keeps it 
from crossing filesystem boundaries.  If you are using rsync to back up whole 
filesystems, it’s indispensable.

Rick

On May 12, 2018, at 10:50 AM, Tixy  wrote:

> Some commands have options to stop them looking at other filsytsems (cp
> has -x and find has -xdev) I don't know about rsync (I don't have it
> installed).

Re: rsync - newbie question

[Tixy]

On Sat, 2018-05-12 at 13:58 -0500, Richard Owlett wrote:
> On 05/12/2018 12:50 PM, Tixy wrote:
> > On Sat, 2018-05-12 at 13:28 -0400, Jude DaShiell wrote:
> >> Another hierarchy in Linux not to sync is /system for the same reason
> >> you don't sync /proc.
> > 
> > Presumably you meant /sys ?
> > 
> > Basically, the OP probably don't want to try and sync mount points for
> > things that aren't ordinary filesystems and that's quite an extensive
> > and variable list.
> 
> I exclude /media for similar reasons. Or would exclude it anyway?

The command options I was thinking about would stop a command crossing
over into another filesystem. E.g. if my desktop automounts a USB stick
as /media/tixy/disks-label, that directory path would be part of the
root filesystem, but the actual contents of the USB stick that you see
under that path wouldn't be included in the command. So you'd just get
an empty directory with that path (/media/tixy/disks-label).

I googled for rsync man page [1] and it does seem to have the same
option as the cp command for this:

-x, --one-file-system
This tells rsync to avoid crossing a filesystem boundary
when recursing. This does not limit the user's ability to
specify items to copy from multiple filesystems, just rsync's
recursion through the hierarchy of each directory that the user
specified, and also the analogous recursion on the receiving
side during deletion.

I don't know what it is you're trying to achieve. If your intent is to
create an identical copy of a system as some kind of backup, you'll also
need to make sure you copy file permissions, owners and special
attributes, duplicate hardlinks and possibly other things I haven't
thought of. That will require root privileges to execute and the correct
set of commandline options. Looking at that rsync man page I found, that
would be options like -p -X -H. (Note, I haven't used rsync before so
don't rely on my advice too much).

[1] https://linux.die.net/man/1/rsync

-- 
Tixy

Re: USB Install Fails, Complains about CD-ROM

[Thomas Schmitt]

Hi,

Pascal Hambourg wrote:
> Why then does parted complain about a block size discrepancy ?

Because the Apple Partition Map announces to count blocks with size 2048
whereas the Linux device file announces 512 (via ioctl(BLKSSZGET) ?)).

It is quite a poor choice of parted to hop on the Apple Partition Map
rather than onto the MBR partition map, which will be of interest for
much more firmwares and operating systems.

(I should really pester debian-cd more about that inappropriate option
 -isohybrid-apm-hfsplus in the xorriso run.)


I wrote:
> > > But if only a few MB were copied (for what strange reason ever) there
> > remains the riddle why it booted and probably loaded the initrd.
> > Why does it fail when it looks for the ISO filesystem ?

> Probably because the MBR and the boot files are located at the beginning of
> the image and were part of the data which were actually written.

Well, Kent obviously experienced a running Linux kernel and the attempt to
execute software from the initrd.

The message "Load installer components from CD" can be found in initrd.gz
as package Description which belongs to "load-cdrom"
  https://packages.debian.org/stretch/load-cdrom
This package is not to see as file in the ISO.

It could be that there is no problem with finding the "CD-ROM" but rather
with installing or activating that package. So maybe it could not even
begin its work.

About its role in debian-installer 
  https://d-i.alioth.debian.org/doc/talks/debconf6/paper/
says
  "The first three stages are where the fundamental difference between
   installation methods can be seen. All components (udebs) used there
   need to be included in the initrd[2] with which the installer is booted."
and lists
  "load-cdrom (anna)[...]Retrieve and unpack additional components"
as part of stage 2.

---

So the problem obviously occurs while the installer is still using the initrd.  
The filename in the ISO is /install.amd/gtk/initrd.gz or
/install.amd/initrd.gz.

In debian-9.4.0-amd64-xfce-CD-1.iso the initrds and the kernel are stored in
the lower blocks indeed. ("Startlba" is the logical block address with 2048
 bytes per block. "Blocks" is the number of occupied blocks.):

  Startlba ,   Blocks , Filesize , ISO image path
  ===
  ...
  5642 ,19182 , 39282964 , '/install.amd/gtk/initrd.gz
 24824 ,1 ,   66 , '/install.amd/gtk/install.b
 24825 , 2063 ,  4224800 , '/install.amd/gtk/vmlinuz'
 24825 , 2063 ,  4224800 , '/install.amd/vmlinuz'
 26888 , 7667 , 15700220 , '/install.amd/initrd.gz'
 34555 ,1 ,   45 , '/install.amd/install.bat'
  ...

In debian-buster-DI-alpha2-amd64-xfce-CD-1.iso :

  Startlba ,   Blocks , Filesize , ISO image path
  ===
  ...
  5694 ,19570 , 40077490 , '/install.amd/gtk/initrd.gz'
 25264 ,1 ,   66 , '/install.amd/gtk/install.bat'
 25265 , 2181 ,  4466448 , '/install.amd/gtk/vmlinuz'
 25265 , 2181 ,  4466448 , '/install.amd/vmlinuz'
 27446 , 7811 , 15995172 , '/install.amd/initrd.gz'
 35257 ,1 ,   45 , '/install.amd/install.bat'
  ...

The messages
  Load installer components from CD
  There was a problem reading data from the CD-ROM.
are well known to the web. But occurences show no pattern about particularly
bad releases or spin-off distros. The reported remedies are not much
convincing as technical improvements, but they all involve re-copying the
ISO onto USB stick.
I.e. they all could simply have helped by trying again and having more
success with copying.


Kent could try to damage the USB stick content for experiments.

First:

  # Damage ISO after the end of initrds and kernel
  dd if=/dev/zero bs=2048 count=35 seek=5 of=/dev/sdc

And after checking out the effects of that damage:

  # Damage the GTK initrd itself
  dd if=/dev/zero bs=2048 count=4 seek=1 of=/dev/sdc

(This does not damage the USB stick. Only its content data.)

---


Have a nice day :)

Thomas

Re: rsync - newbie question

[Brian]

On Sat 12 May 2018 at 13:54:53 -0500, Richard Owlett wrote:

> I'll keep that in mind.
> But you started me thinking about how my use case differs from any normal
> user.

You would have to put yourself in the thought mode of a normal user
(whatever he is) instead of seeing youself as having special needs
or requirements.

-- 
Brian.

Re: rsync - newbie question

[Richard Owlett]

On 05/12/2018 12:50 PM, Tixy wrote:

On Sat, 2018-05-12 at 13:28 -0400, Jude DaShiell wrote:

Another hierarchy in Linux not to sync is /system for the same reason
you don't sync /proc.


Presumably you meant /sys ?

Basically, the OP probably don't want to try and sync mount points for
things that aren't ordinary filesystems and that's quite an extensive
and variable list.


I exclude /media for similar reasons. Or would exclude it anyway?



Some commands have options to stop them looking at other filsytsems (cp
has -x and find has -xdev) I don't know about rsync (I don't have it
installed).

Re: rsync - newbie question

[Richard Owlett]

On 05/12/2018 12:48 PM, Hans wrote:

Am Samstag, 12. Mai 2018, 19:37:40 CEST schrieb Richard Owlett:
Please note, the directory is NOT /system, it is /sys.
Juda got a little typo. :)


I won't complain too much. Otherwise peuple will start talking about mine ;/



However, I would avoid /proc, /sys, /tmp and /lost+found

Hint: If you might put /home on another partition, you can easily install or
sync a new system, but leave the user settings. In that case, you should of
course also exclude /home.


I'll keep that in mind.
But you started me thinking about how my use case differs from any 
normal user.




Best

Hans

On 05/12/2018 12:28 PM, Jude DaShiell wrote:

Another hierarchy in Linux not to sync is /system for the same reason
you don't sync /proc.


thank you.

Re: e-mail addresses not being redone

[Gary Dale]

On 2018-05-12 09:18 AM, Jude DaShiell wrote:

On Fri, 11 May 2018, Gary Dale wrote:


Date: Fri, 11 May 2018 17:30:26
From: Gary Dale 
Reply-To: g...@extremeground.com
To: debian users 
Subject: e-mail addresses not being redone
Resent-Date: Fri, 11 May 2018 21:30:56 + (UTC)
Resent-From: debian-user@lists.debian.org

I'm running Debian/Buster on an AMD64 system.

When I use "mail" to send e-mail from the command line, it doesn't 
use /etc/email-addresses to rewrite the "from" header but s-nail does.


Apparently on my system, mail is provided by the Gnu Mailutils. Is 
the the normal behaviour for Mailutils or do I have to configure it 
to respect /etc/email-addresses?



You may have had exim installed and in that case will have to adjust 
things in exim.




Yes. I have exim4 installed. I even told it to rewrite the from header 
to use the ISP's domain but it also seems to ignore that.

Re: rsync - newbie question

[Hans]

Am Samstag, 12. Mai 2018, 19:37:40 CEST schrieb Richard Owlett:
Please note, the directory is NOT /system, it is /sys.
Juda got a little typo. :)

However, I would avoid /proc, /sys, /tmp and /lost+found

Hint: If you might put /home on another partition, you can easily install or 
sync a new system, but leave the user settings. In that case, you should of 
course also exclude /home.

Best 

Hans
> On 05/12/2018 12:28 PM, Jude DaShiell wrote:
> > Another hierarchy in Linux not to sync is /system for the same reason
> > you don't sync /proc.
> 
> thank you.

Re: rsync - newbie question

[Tixy]

On Sat, 2018-05-12 at 13:28 -0400, Jude DaShiell wrote:
> Another hierarchy in Linux not to sync is /system for the same reason
> you don't sync /proc.

Presumably you meant /sys ?

Basically, the OP probably don't want to try and sync mount points for
things that aren't ordinary filesystems and that's quite an extensive
and variable list.

Some commands have options to stop them looking at other filsytsems (cp
has -x and find has -xdev) I don't know about rsync (I don't have it
installed).

-- 
Tixy

Re: USB Install Fails, Complains about CD-ROM

[Pascal Hambourg]

Le 11/05/2018 à 22:38, Thomas Schmitt a écrit :


Pascal Hambourg wrote:

It also has Apple and GPT partition tables, but they are bogus


The GPT is not valid because there is a non-"protective" MBR partition
table. The APM is valid, but should be of no interest for any firmware
that does not expect a HFS or HFS+ filesystem. (And there is no such
filesystem in the ISO image.)


Why then does parted complain about a block size discrepancy ?


But if only a few MB were copied (for what strange reason ever) there
remains the riddle why it booted and probably loaded the initrd.
Why does it fail when it looks for the ISO filesystem ?


Probably because the MBR and the boot files are located at the beginning 
of the image and were part of the data which were actually written.

Re: rsync - newbie question

[Richard Owlett]

On 05/12/2018 12:28 PM, Jude DaShiell wrote:
Another hierarchy in Linux not to sync is /system for the same reason 
you don't sync /proc.


thank you.

Re: rsync - newbie question

[Jude DaShiell]

On Sat, 12 May 2018, Richard Owlett wrote:


Date: Sat, 12 May 2018 11:54:13
From: Richard Owlett 
To: debian-user 
Subject: Re: rsync - newbie question
Resent-Date: Sat, 12 May 2018 15:54:40 + (UTC)
Resent-From: debian-user@lists.debian.org

On 05/12/2018 10:47 AM, Eero Volotinen wrote:

 You should not sync /proc. it's not normal directory

 Eero


Thank you.






--
Another hierarchy in Linux not to sync is /system for the same reason you 
don't sync /proc.

Re: USB Install Fails, Complains about CD-ROM

[Pascal Hambourg]

Le 12/05/2018 à 01:04, Rick Thomas a écrit :


After doing the cp or dd to write the .iso to the USB, do you do a “sync” 
before you eject it?


I don't, because I don't feel the need to.
According to its man page description, sync "flush file system buffers", 
but the destination is a raw device, not a filesystem, so filesystem 
buffers should not be involved.



 Writing to a USB stick can seem to go quite fast


Not in my experience when writing to the raw USB device.
The USB drives I use have an activity light. It stops blinking as soon 
as the dd or cp command terminates. I also monitor block I/O with vmstat 
and block writes drop as soon as dd or cp terminates. If I run sync, I 
do not see any more activity from the light or vmstat.

Re: rsync - newbie question

[Hans]

Am Samstag, 12. Mai 2018, 17:54:13 CEST schrieb Richard Owlett:
As Eero said, do not sync /proc, you can use the --exclude option.

There is a good description here, how to exclude things:
https://www.thegeekstuff.com/2011/01/rsync-exclude-files-and-folders/?
utm_source=feedburner

Have fun!

Hans

> On 05/12/2018 10:47 AM, Eero Volotinen wrote:
> > You should not sync /proc. it's not normal directory
> > 
> > Eero
> 
> Thank you.

Re: rsync - newbie question

[Eero Volotinen]

You should not sync /proc. it's not normal directory

Eero

la 12. toukok. 2018 klo 18.37 Richard Owlett 
kirjoitti:

> In another thread it was suggested that I use:> rsync -avzh --delete
> -n  
>
> I tried it and got ~200 error messages of form:
>
> > file has vanished: "/proc/10/exe"
>
> > file has vanished: "/proc/10/task/10/exe"
>
> > file has vanished: "/proc/101/exe"
>
> > file has vanished: "/proc/101/task/101/exe"
>
> > file has vanished: "/proc/10146/exe"
>
> > file has vanished: "/proc/10146/task/10146/exe"
>
> > file has vanished: "/proc/10300/cwd"
>
> > file has vanished: "/proc/10300/root"
>
> > file has vanished: "/proc/10300/exe"
>
> Spot checking properties of those showed that although they had multiple
> sub-directories the content was "0 bytes".
>
> Browsing [https://manpages.debian.org/stretch/manpages/proc.5.en.html]
> implied that excluding everything under /proc would be reasonable.
>
> Am I correct?
> TIA
>
>
>

Re: rsync - newbie question

[Richard Owlett]

On 05/12/2018 10:47 AM, Eero Volotinen wrote:

You should not sync /proc. it's not normal directory

Eero


Thank you.

rsync - newbie question

[Richard Owlett]

In another thread it was suggested that I use:> rsync -avzh --delete 
-n  


I tried it and got ~200 error messages of form:


file has vanished: "/proc/10/exe"



file has vanished: "/proc/10/task/10/exe"



file has vanished: "/proc/101/exe"



file has vanished: "/proc/101/task/101/exe"



file has vanished: "/proc/10146/exe"



file has vanished: "/proc/10146/task/10146/exe"



file has vanished: "/proc/10300/cwd"



file has vanished: "/proc/10300/root"



file has vanished: "/proc/10300/exe"


Spot checking properties of those showed that although they had multiple 
sub-directories the content was "0 bytes".


Browsing [https://manpages.debian.org/stretch/manpages/proc.5.en.html] 
implied that excluding everything under /proc would be reasonable.


Am I correct?
TIA

Re: Desenvolvedor Debian | Tradutor

[Marcelo Santana]

On May 11, 2018 1:03:47 PM GMT-03:00, Helio Loureiro  
wrote:
>Sério?  Todo esse texto pra acabar com um ativismo de sofá?  "Não fala
>mal
>do meu amigo que deu carteirada de DD que eu fico puto"?

Cara, como eu já falei, não sei o que está acontecendo contigo. Você está 
ficando mestre em distorcer as coisas e gerar flame.  Eu não entrei nessa 
discussão por conta de amigo nenhum, mas apenas pelo fato de colaborar com 
tradução há bastante tempo e saber como as coisas funcionam. Por favor Hélio, 
arranje outra pessoa para descarregar sua raiva.

>Eu espero o contrário.  Eu espero indignação, que digam que estou
>errado,
>que não sei nada.  Que me mostrem que estou errado.  Eu quero uma
>reação,
>não um "parei aqui".  Isso eu já vejo há muitos anos.  E não me
>impressiona.

Desculpe, mas eu não estou diposto a servir de palco para o seu show de 
vaidades e ataque pessoais.

[]'s
--
Marcelo Santana (aka msantana) 
4096R/89C55467: 88FB 5D63 ED02 3B5D 90D6  3A3E 8698 1CC9 89C5 5467

Re: LVM setup with snapshots

[Eduardo M KALINOWSKI]

On 11-05-2018 21:46, Forest Dean Feighner wrote:
> I really didn't prepare for lvm. I never used lvm before this so had
> no idea of lvm before.
>
> Snapshots sound like an awesome idea.
>
> I would like to do a configured base install, create a snapshot, and
> modify (fork), the base for different things.
>
> With 20/20 hindsight. The default doesn't seem to have room. What are
> different solutions other debian/lvm users have used?

You can shrink most kinds of partitions (including ext4), and then
shrink the logical volumes (in this order). It's not as convenient as
growing the LVs since the partitions must not be mounted and shrinking
can be somewhat slow if data needs to be shuffled around, but it's possible.

As always, there's a small risk of data loss, so better have a backup of
important data.

-- 

She is descended from a long line that her mother listened to.
-- Gypsy Rose Lee

Eduardo M KALINOWSKI
edua...@kalinowski.com.br

Re: USB Install Fails, Complains about CD-ROM

[Brian]

On Fri 11 May 2018 at 15:49:59 -0500, Kent West wrote:

> I no longer have a failing setup, but this Ubuntu user was seeing the exact
> same thing I was seeing, except in Debian words/colors:
> 
> 
> https://askubuntu.com/questions/127398/usb-drive-install-of-ubuntu-12-04-server-fails-cant-find-components-from-cd-r
> 
> In case of link-rot, here's what he writes:
> 
> 
>1. The computer boots up the installation process ok.
>2. It gets through the Ubuntu language, locale and keyboard selection.
>3. Then starts loading additional components. At this point it gets
>about a quarter of the way through then throws big error message saying:
> 
> *[!!] Load installer components from CD*
> 
> There was a problem reading data from the CD-ROM. Please make sure it is in
> the drive. If retrying does not work., you should check the integrity of
> your CD-ROM.
> 
> Failed to copy file from CD-ROM. Retry?

This user used Universal-USB-Installer-1.8.9.4 to write a Ubuntu 12.04
Server (32bit) image to a USB stick - a somewhat different technique from
yours. The tool used to create the USB image quite possibly modified and
damaged the image when writing it out.

AfAIK, there is no well-documented account of dd, cat or cp reproducibly
failing to write a Debian installation image properly to a USB device.

-- 
Brian.

Re: Recopie vidéo sur second écran mais en miroir

[Yann Serre]

Bonjour et merci.
Oui, c'est ce que je vais tester dès mon retour dimanche, je n'ai qu'un 
portable sous la main en ce moment :)


Le 12/05/2018 à 09:58, Étienne Mollier a écrit :

Bonjour,

Au risque d'arriver un peu après la bataille, et pour en revenir
aux solutions à une seule machine, est ce qu'une configuration
dans ce goût là pourrait aire l'affaire ? En supposant que les
sorties vidéos soient VGA-1 pour l'écran principal et VGA-2 pour
le prompteur :

xrandr --output VGA-1 --auto \
   --output VGA-2 --same-as VGA-1 --reflect y

Re: Problème envoi courriel (serveur smtp orange) [résolu mais pourquoi ?]

[Eric Degenetais]

Vous n'arrivez pas sur leur smtp par la même branche réseau. Généralement
en fixe on se connecte au smtp d'un fai depuis le réseau du FAI, qui est
considéré à tort ou à raison comme zone de confiance. Depuis un mobile
c'est une autre route qui est probablement considérée comme moins sûre.

Éric Dégenètais

Le 12 mai 2018 9:32 AM, "Sylvain Caselli"  a
écrit :

> Bonjour,
>
> vu sur internet qu'il fallait mettre SSL/TLS dans "Sécurité de la
> connexion" alors que depuis des lustres j'avais AUCUNE.
>
> Depuis une semaine cela à l'air de fonctionner.
>
> Si quelqu'un sait pourquoi avec une connexion filaire AUCUNE fonctionne et
> pas en passant par un mobile. Ou cela n'a aucun rapport.
>
> Sylvain.
>
>
> Le 28/04/2018 à 10:54, Francois Mescam a écrit :
>
> Est-ce que cela n'aurai pas lieu avec des mails envoyés à ...@laposte.net
> ? Si oui aller voir sur leur site ils ont des pb.
>
> On 28/04/2018 09:48, Sylvain Caselli wrote:
>
> Bonjour,
>
> c'est peut-être hors sujet mais un peu d'aide serait le bienvenu.
>
> La plupart de mes courriers envoyés sont refusés bien que placés dans le
> dossier "envoyés" par thunderbird. Le message est :
>
> *Une erreur est survenue lors de l’envoi du courrier : le serveur de
> courrier a envoyé un message d’accueil incorrect : mwinf5d79 ME Trop de
> connexions, veuillez verifier votre configuration. Too many connections,
> slow down. OFR304_104 [104].*
>
>
> En fait je passe maintenant par mon mobile qui fait point d'accès via SOSH
> alors que je passais par un modem/routeur via orange sur ligne fixe. Comme
> c'est la même entreprise orange m'a "dégillé" mes adresses pour qu'elles
> deviennent libres. Je peu donc les garder mais cela n'a pas résolu mon
> problème.
>
> Comme je peu envoyer mes courriers avec leur portail 'ils' disent que cela
> ne vient pas d'eux et que je de voir cela avec un informaticien.
>
> Sur internet j'ai vu qu'il fallait modifier la config de postfix.
>
> Que puis-je faire ? Changer de logiciel de courrier, modifier la config de
> Mozilla, de postfix, ...
>
> Merci d'avance.
>
> Sylvain.
>
>
> --
>  Francois Mescam
>
>
>

Re: Recopie vidéo sur second écran mais en miroir

[Étienne Mollier]

On Thu, May 10, 2018 at 06:36:46PM +0200, Yann Serre wrote:
> Le 10/05/2018 à 18:23, hamster a écrit :
> > Le 10/05/2018 à 15:09, Yann Serre a écrit :
> > > Mais deux machines quand même:)
> > 
> > Je n'ai pas essayé donc je peux rien te certifier, mais je
> > parie qu'on peut faire tourner 2 instances de VLC sur la meme
> > machine. Une qui affiche sur le premier écran et diffuse,
> > l'autre qui recoit et affiche sur le 2e écran en miroir.
> 
> A essayer, merci !


Bonjour,

Au risque d'arriver un peu après la bataille, et pour en revenir
aux solutions à une seule machine, est ce qu'une configuration
dans ce goût là pourrait aire l'affaire ? En supposant que les
sorties vidéos soient VGA-1 pour l'écran principal et VGA-2 pour
le prompteur :

xrandr --output VGA-1 --auto \
   --output VGA-2 --same-as VGA-1 --reflect y

La commande "xrandr" permet de piloter la géométrie des écrans.
L'option "--output" permet de sélectionner la sortie graphique à
configurer.  L'option "--auto" permet d'appliquer la
configuration optimale à la sortie sélectionnée.  L'option
"--same-as" permet de cloner une sortie.  Enfin, l'option
"--reflect" permet d'appliquer un miroir sur la sortie,
l'argument "y" sélectionne un miroir vertical, "x" pour un miroir
horizontal, ou "xy" pour une combinaison des deux ; passer
"normal" à la place permet de revenir en arrière si on s'est
trompé de sortie.  :)

En tapant "xrandr" sans argument, vous pouvez afficher votre
configuration courante, ça vous permettra de déterminer quelles
sont les noms de vos sorties graphiques.

Ça rejoint la solution que vous avez appliqué précédemment, à
base de configuration du pilote graphique.  À défaut de double
écran à portée de main, je n'ai pas pu tester pour voir si cette
commande est fonctionnelle.  Mais je ne vois rien qui s'oppose à
une telle manipulation.

À plus,
-- 
Étienne Mollier 

Re: Problème envoi courriel (serveur smtp orange) [résolu mais pourquoi ?]

[Sylvain Caselli]

Bonjour,

vu sur internet qu'il fallait mettre SSL/TLS dans "Sécurité de la 
connexion" alors que depuis des lustres j'avais AUCUNE.


Depuis une semaine cela à l'air de fonctionner.

Si quelqu'un sait pourquoi avec une connexion filaire AUCUNE fonctionne 
et pas en passant par un mobile. Ou cela n'a aucun rapport.


Sylvain.



Le 28/04/2018 à 10:54, Francois Mescam a écrit :
Est-ce que cela n'aurai pas lieu avec des mails envoyés à 
...@laposte.net ? Si oui aller voir sur leur site ils ont des pb.


On 28/04/2018 09:48, Sylvain Caselli wrote:


Bonjour,

c'est peut-être hors sujet mais un peu d'aide serait le bienvenu.

La plupart de mes courriers envoyés sont refusés bien que placés dans 
le dossier "envoyés" par thunderbird. Le message est :


*/Une erreur est survenue lors de l’envoi du courrier : le serveur de 
courrier a envoyé un message d’accueil incorrect : mwinf5d79 ME Trop 
de connexions, veuillez verifier votre configuration. Too many 
connections, slow down. OFR304_104 [104]./*



En fait je passe maintenant par mon mobile qui fait point d'accès via 
SOSH alors que je passais par un modem/routeur via orange sur ligne 
fixe. Comme c'est la même entreprise orange m'a "dégillé" mes 
adresses pour qu'elles deviennent libres. Je peu donc les garder mais 
cela n'a pas résolu mon problème.


Comme je peu envoyer mes courriers avec leur portail 'ils' disent que 
cela ne vient pas d'eux et que je de voir cela avec un informaticien.


Sur internet j'ai vu qu'il fallait modifier la config de postfix.

Que puis-je faire ? Changer de logiciel de courrier, modifier la 
config de Mozilla, de postfix, ...


Merci d'avance.

Sylvain.



--
  Francois Mescam