Re: momentarily disabling synaptic touchpad

2011-09-19 Thread Todd And Margo Chester

  
  
On 09/19/2011 04:28 PM, William Shu wrote:

  
Hi,
I have SL 6.0 installed on a Seagate FreeAgent GoFlex USB
  drive, which I use on various laptops (and desktops). The
  touchpad is so sensitive on some machines and I would like to
  disable it. At the same time, the attached mouse seems to be
  selectively responsive, notably its left button. Looking
  through the docs etc, a synaptics input driver has been
  installed, but the corresponding xorg.conf file is not in
  place for me to modify. (From a separate thread on nVidia,
  creating this file is NOT automatic in SL 6.)
 

  


Hi William,

This is probably not exactly what you wanted.  But, anyway...

I have a sweet little old lady (70+) on FC15 that the slide pad
drives
her crazy.  She is constantly putting her had down on it when she
types.
She prefers to use her USB attached mouse.  So I wrote the following
script for her.  I don't remember where I put it though.  Maybe her
rc.local.

HTH,
-T

#!/bin/bash
#Disable the [annoying] Slide Pad mouse

#DeviceStr="`xinput list | grep -i touchpad | awk '{print $6}'`"
#DeviceID="`echo $DeviceStr | sed -e 's/id=//'`"

DeviceID="`xinput list | grep -i touchpad | awk -F "id=" '{print
$2}'`"
if [ -z "$DeviceID" ]; then
   echo "DeviceID failed to resolve.  There is something wrong."
   echo "Cowardly exiting.  Bummer, dude ..."
   echo ""
   exit 1
fi

xinput set-prop $DeviceID "Device Enabled" 0
echo "touchpad mouse on device id $DeviceID has been disabled"
echo ""

  



Re: sl6.1 and sl6x

2011-09-19 Thread Nico Kadel-Garcia
On Mon, Sep 19, 2011 at 11:36 AM, Connie Sieh  wrote:
> On Mon, 19 Sep 2011, Nico Kadel-Garcia wrote:
>
>> On Mon, Sep 19, 2011 at 1:16 AM, Tanmoy Chatterjee 
>> wrot=
>> e:
>>>
>>> On Sat, Sep 17, 2011 at 2:09 PM, Tanmoy Chatterjee 
>>> wr=
>>
>> ote:

 On Sat, Sep 17, 2011 at 1:48 PM, jdow  wrote:
>>
 =A0 =A0 =A0 =A0 =A0 This method here is different! Now if I enable SL6.1
 repositories only - then when the SL6.2 repo gets available - will it
 be available through the gui "SL addons > yum.. > " or the method is
 different ?
>>>
>>> THANKS FOR ALL THE RESPONSES.
>>> But as a novice I would again request to shed some light on this part
>>> of my queries.
>>
>> You have to pick. If you follow the upstream vendor's model, you use
>> the "6.x" repository, and the updates to 6.2 will be automatically
>> available. Whether you *install* them is your choice, but they'll be
>> available. I recommend doing so.
>>
>> If you use the "6.1" repository, you'll get some updates for a while,
>
> You will get security updates for the full period that security updates are
> available for the 6 release.
>
>> but it will be unsupported in the relatively new feature. It is *not
>
> It is not unsupported.  You will get security updates but will not get the
> new features for each of the new point releases.

I'm staring at what happened under RHEL 5.x with autofs updates, bind
versus bind97, openldap versus openldap24, subversion updates, and
samba3x updates with significant feature additions. The "security
updates" are not enough to try and keep current with significant
feature changes. And as long as the changes are locked off in the
minor release change number by a refusal to expose the system to the
"5.0 through 5.5 reales", rather than updating to 5.6, they'll be
unavailable. This happens _every time_ there's a new point release,
and I'm convinced from painful experience that keeping to the "5x"
repositories rather than the active and current channel for upgrades
introduces genuinely painful system skew.

In my opeinion and experience, it's a support rathole and contributes
to developers and admins having to maintain their own, personal sets
of drivers and binaries and libraries and destablilizing the whole
mess. It certainly occurred with the upgrade from 5.5 and 5.6, I was
able to throw away entire sets of poorly integrated user-built tools
and replace them with supportable and better configured system tools
from the upgrade.


Need KVM HD settings advice

2011-09-19 Thread Todd And Margo Chester

Hi All,

I am confused.

I am getting to the point were I am about to set up
my first KVM server.  My fist adventure will be to
migrate an XP guest I currently have running on my old
server under Virtual Box 3.2.12.

What I need help with is getting the optimum performance
settings while converting over my old hard (virtual) drive.

This is what I have gathered from these parts as to the best
settings:

- controller: virtio
- kvm option: cache=none
- qcow2 disk format with metadata preallocation
- create your disk image with:
 qemu-img create -f qcow2 -o \
 size=400,preallocation=metadata vdisk.img

So far so good.  Now what I am concerned about is
retaining the optimum settings from a converted
hard drive.  Also gathered from these parts is the
best way to convert the hard drive:

   qemu-img convert -f vdi oldImage.vdi -O qcow2 newImage.qcow

I am afraid I will loose all the optimum settings.

And, I am vague how a *.qcow file/drive and a *.img file/drive
relate.

Many thanks,
-T


Re: momentarily disabling synaptic touchpad

2011-09-19 Thread Vladimir Mosgalin
Hi William Shu!

 On 2011.09.19 at 16:28:32 -0700, William Shu wrote next:

> I have SL 6.0 installed on a Seagate FreeAgent GoFlex USB drive, which
> I use on various laptops (and desktops). The touchpad is so sensitive
> on some machines and I would like to disable it. At the same time, the
> attached mouse seems to be selectively responsive, notably its left
> button. Looking through the docs etc,a synaptics input driver has been
> installed, but the corresponding xorg.conf file is not in place for me
> to modify. (From a separate thread on nVidia, creating this file is
> NOT automatic in SL 6.)

Btw, once you enable real-time configuration, you can do lots of magic
with your touchpad, for example this snippet (works on modern systems
but haven't checked on SL6 - but probably it should work) - tweaks
touchpad so that double-finger tap works as middle button that's
always missing on touchpads (of course, touchpad must supports
multitouch) and also disables touchpad while you are typing text, so it
won't be sending annoying commands during that.

syndaemon -i 1 -d -K && xinput set-int-prop \"SynPS/2 Synaptics TouchPad\" 
\"Synaptics Two-Finger Pressure\" 32 10 &","0","*")

It's kind of a magic so please don't ask me how it works, I have no idea :)
It just does!

-- 

Vladimir


Re: momentarily disabling synaptic touchpad

2011-09-19 Thread Vladimir Mosgalin
Hi William Shu!

 On 2011.09.19 at 16:28:32 -0700, William Shu wrote next:

> I have SL 6.0 installed on a Seagate FreeAgent GoFlex USB drive, which
> I use on various laptops (and desktops). The touchpad is so sensitive
> on some machines and I would like to disable it. At the same time, the
> attached mouse seems to be selectively responsive, notably its left
> button. Looking through the docs etc,a synaptics input driver has been
> installed, but the corresponding xorg.conf file is not in place for me
> to modify. (From a separate thread on nVidia, creating this file is
> NOT automatic in SL 6.)  
> 
> Question 1: If I create the xorg.conf file, would that later create
> problems for me when I switch to other machines--legacy or recent? I
> would not want some of the clashes (no/incorrect video, etc.) I
> experienced with SL 52 on USB sticks.

It will create problems if you switch configuration if you create
full-fledged xorg.conf; for example video card ID on PCI bus creates
problem, and video card driver. However good thing is, you don't have to
create xorg.conf; modern xorg supports small snippets of config files in
which you can tweak only some part of config, and letting everything
else to be autoconfigured. Sadly, this doesn't work for some stuff like
video (if you have to set gamma, you have to put all sections like video
card - display - etc), but it works perfectly for input devices.
So, it's best to be without xorg.conf at all, if your system can handle
it (if you install nvidia binary drivers, you probably must have that
file :( )


Here lies the trouble, however, as SL6 uses Xorg 7.4 which doesn't
support udev-based configuration (it appeared in Xorg 8 and higher)
or config snippets from /etc/X11/xorg.conf.d; it uses older method of
hal-based configuration with config snippets from .fdi files. Check out
this page, here you can find exact solution which should work in SL6.0:
http://en.gentoo-wiki.com/wiki/Synaptics_Touchpad/Xorg_7.3

(of course, skip kernel & X11 compiling part :)


So, just create .fdi and customize it with options from manpage to your
liking, you can enable synclient real-time configuration, too. You won't
have to touch anything else or xorg.conf and this file won't interfere
with systems that don't have touchpads at all. This should answer your
second question, too.

> Question 3: Can the touchpad sometimes interfere with the use of the
> mouse? If so, how to minimize interference. the [replacement] mouse I
> use may not be the right quality?

Seems unlikely, I'd suspect faulty mouse, but can never be sure.. Still,
never heard or experienced any kind of interference between mouse,
touchpad and touchscreen - they all seem to work in any combination.


-- 

Vladimir


Re: [SCIENTIFIC-LINUX-USERS] System hangs on "Starting system logger" during initial boot

2011-09-19 Thread Paul Jochum

Thank you Pat and Bluejay for replying.

Late last week, I found the culprit.  It was the "cpuspeed".  Not sure 
why (although I did find a couple of google references from users who 
had also had a problem with "cpuspeed").  I ended up making sure my 
kickstart script does not install it (basically added a "-cpuspeed" line 
to "%packages"), and it works much better now.


I do like the idea of video-recording the screen, I have never tried 
that before (a lot of photographing the screen to capture items, but 
never tried video-recording it, will have to try that for the next problem).


thanks,

Paul

On 09/19/2011 02:50 PM, Bluejay Adametz wrote:

SCROLLLOCK should let you use PageUP to look at the text that went
zooming past to see if anything interesting is afoot.

Or, if all else fails, try video-recording the screen. I've actually
had some luck doing that with my smartphone in cases where errors fly
off the screen too fast. I was able to catch just enough to get me
pointed in the right direction.

  - Bluejay Adametz

Blore's Razor: Given a choice between two theories,
take the one which is funnier.
NOTICE: This message, including any attachments, is only for the use of
the intended recipient(s) and may contain confidential and privileged
information, or information otherwise protected from disclosure by law.
If the reader of this message is not the intended recipient, you are
hereby notified that any use, disclosure, copying, dissemination or
distribution of this message or any of its attachments is strictly
prohibited.  If you received this message in error, please contact the
sender immediately by reply email and destroy this message, including all
attachments, and any copies thereof.


momentarily disabling synaptic touchpad

2011-09-19 Thread William Shu
Hi,
I have SL 6.0 installed on a Seagate FreeAgent GoFlex USB drive, which I use on 
various laptops (and desktops). The touchpad is so sensitive on some machines 
and I would like to disable it. At the same time, the attached mouse seems to 
be selectively responsive, notably its left button. Looking through the docs 
etc,a synaptics input driver has been installed, but the corresponding 
xorg.conf file is not in place for me to modify. (From a separate thread on 
nVidia, creating this file is NOT automatic in SL 6.)
 

Question 1: If I create the xorg.conf file, would that later create problems 
for me when I switch to other machines--legacy or recent? I would not want some 
of the clashes (no/incorrect video, etc.) I experienced with SL 52 on USB 
sticks.


Question 2: if synaptics driver is already installed, is it possible to have 
the fine control and features alluded to in the manual page (synaptics(4))? if 
so, how?The options in System->Preferences->Mouse->Touchpad are NOT helpful.
 

Question 3: Can the touchpad sometimes interfere with the use of the mouse? If 
so, how to minimize interference. the [replacement] mouse I use may not be the 
right quality?


Any help would be appreciated.


Software details are:

[root@localhost wss]# uname -a
Linux localhost.localdomain 2.6.32-131.12.1.el6.i686 #1 SMP Tue Aug 23 11:12:55 
CDT 2011 i686 i686 i386 GNU/Linux
[root@localhost wss]# yum --disablerepo='*' whatprovides synaptics
Loaded plugins: refresh-packagekit
xorg-x11-drv-synaptics-1.2.1-5.el6.i686 : Xorg X11 Synaptics touchpad input
    : driver
Repo    : installed
Matched from:
Other   : Provides-match: synaptics

[root@localhost wss]# 



William.

Re: [SCIENTIFIC-LINUX-USERS] System hangs on "Starting system logger" during initial boot

2011-09-19 Thread Bluejay Adametz
> SCROLLLOCK should let you use PageUP to look at the text that went
> zooming past to see if anything interesting is afoot.

Or, if all else fails, try video-recording the screen. I've actually
had some luck doing that with my smartphone in cases where errors fly
off the screen too fast. I was able to catch just enough to get me
pointed in the right direction.

 - Bluejay Adametz

Blore's Razor: Given a choice between two theories,
take the one which is funnier.
NOTICE: This message, including any attachments, is only for the use of 
the intended recipient(s) and may contain confidential and privileged 
information, or information otherwise protected from disclosure by law.  
If the reader of this message is not the intended recipient, you are 
hereby notified that any use, disclosure, copying, dissemination or 
distribution of this message or any of its attachments is strictly 
prohibited.  If you received this message in error, please contact the 
sender immediately by reply email and destroy this message, including all 
attachments, and any copies thereof. 


Re: [SCIENTIFIC-LINUX-USERS] System hangs on "Starting system logger" during initial boot

2011-09-19 Thread Pat Riehecky

On 09/13/2011 12:21 PM, Paul Jochum wrote:

Hi All:

On a SUN x4150 (that previously ran SL 5x fine), I have tried installing
SL 6 (and 6.1 and 6.x).  For each of my SL 6 installations, the system
will hang during the boot at "Starting system logger[   OK   ],
and not accept any keyboard input (I can't do a CNTL-ALT-F2, for
example, to bring up another console and see what is wrong).

Scenario:

New install, either through the GUI for from Kickstart.
If I select option "minimal", then the system boots fine.  However, if I
select an option with a GUI (like "Virtualization"), then I run into
this problem.

Any suggestions on what to check?

thanks,

Paul Jochum
paul.jochum @ alcatel-lucent.com


Hi Paul,

This one sounds tough.  I'm not too sure I know how troubleshoot this 
one. but I have a few guesses.


If I were to guess, I'd aim towards plymoth simply because, like the 
system logger, it starts early in the boot process, but it operates a 
bit differently when an X server is installed.


You might try removingrhgbfrom the kernel boot line (in grub 
itself or /boot/grub/menu.lst) in the more massive install and see if 
that helps.


You could also try adding vga=791   to the kernel boot line and see 
if that gets you anywhere.


Removingquietfrom the boot line has sometimes provided hints 
where the system hangs at boot (though this was mostly back in the early 
days of Linux wireless where the kernel would hickup a bit when those 
modules got loaded).


Sadly with it failing so early in the boot process the VTTYs wont be 
setup yet, so its a bit hard to diagnose the problem. I've found 
NUMLOCK and CAPSLOCK to be helpful in seeing if the system has locked up 
(these days ), and SCROLLLOCK should let you use PageUP to look at the 
text that went zooming past to see if anything interesting is afoot.



Odds are I'm on the completely wrong track here, but this is at least 
some place to start.


Pat

--
Pat Riehecky
Scientific Linux Developer


Re: Should yum-autoupdate depend on mailx?

2011-09-19 Thread Dennis Schridde
Am Montag, 19. September 2011, 09:56:47 schrieb Pat Riehecky:
> On 09/19/2011 08:52 AM, Alec T. Habig wrote:
> > Dennis Schridde writes:
> >> So it is indeed a bug? How should I progress from here? (I did not see
> >> a
> >> bugtracker on the website.)
> > 
> > Since very few packages actually belong to SL (as opposed to TUV, who
> > have their own bugzilla), we just say on the mailing list: "Hey Connie
> > and Pat, here's an easily fixed bug!"
> > 
> > Specifically, please add a mailx dependency to yum-autoupdate.
> > 
> > Low tech but it works :)   Reminds me of a "Letterman" cartoon episode,
> > 
> > for example:
> >http://www.youtube.com/watch?v=z3y_H3SaoAY&feature=results_video&p
> >laynext=1&list=PLBE024B04B63BF3E8
> Adding it shouldn't be too much work, but from the distribution side we
> don't want to force all our users to run a "sending only" mail server
> (or more) unless they actually want to.  I might instead add a check in
> the script where, if sending mail doesn't look possible, it simply
> doesn't try to send it.  That way people don't have to worry about
> surprise software installation on their next update.  I know I'd freak
> out if suddenly my system is running sendmail/postfix when it wasn't before.
It does not seem that mailx requires sendmail/postfix (says "rpm -qR mailx"). 
So adding the dependency should be safe.

--Dennis

signature.asc
Description: This is a digitally signed message part.


Re: Does SL6 support yum-plugin-security ?

2011-09-19 Thread Connie Sieh
As stated in other parts of this thread SL does not support 
yum-plugin-security because the repodata/ entries that are required to 
make it work are not available.


Sorry for this limitation.

-Connie Sieh


Re: sl6.1 and sl6x

2011-09-19 Thread Connie Sieh

On Mon, 19 Sep 2011, Nico Kadel-Garcia wrote:


On Mon, Sep 19, 2011 at 1:16 AM, Tanmoy Chatterjee  wrot=
e:

On Sat, Sep 17, 2011 at 2:09 PM, Tanmoy Chatterjee  wr=

ote:

On Sat, Sep 17, 2011 at 1:48 PM, jdow  wrote:



=A0 =A0 =A0 =A0 =A0 This method here is different! Now if I enable SL6.1
repositories only - then when the SL6.2 repo gets available - will it
be available through the gui "SL addons > yum.. > " or the method is
different ?

THANKS FOR ALL THE RESPONSES.
But as a novice I would again request to shed some light on this part
of my queries.


You have to pick. If you follow the upstream vendor's model, you use
the "6.x" repository, and the updates to 6.2 will be automatically
available. Whether you *install* them is your choice, but they'll be
available. I recommend doing so.

If you use the "6.1" repository, you'll get some updates for a while,


You will get security updates for the full period that security updates 
are available for the 6 release.



but it will be unsupported in the relatively new feature. It is *not


It is not unsupported.  You will get security updates but will not get the
new features for each of the new point releases.


feasible* to maintain independent sets of backports to all the minor
OS updates, the testing would be nightmarish, and upgrades of one
component for 6.2 might require other individual upgrades not in 6.0
or 6.1. Trying to maintain the multiple subreleases was a nightmare
back in the old "Red Hat 6.0 through Red Hat 6.2" days of the freeware
Red Hat releases, not RHEL or Scientific Linux or CentOS. Prying old,
dead libraries out of the clawing grips of developers or "high
availability" experts who preferred to say "oh, it's stable, no need
for updates" and "it's my machine, don't you worry about it" was a
source of incredible pain when they then came to me and groused about
our network, storage, and open source integration issues when they
refused to allow basic upgrades.

I recently went through this with Subversion, and it was *painful*.


On my machine here I have two very demanding customers, me and my partn=

er.

I kept it on 6.0 until the VM version I have looked stable with 6.1 and
there were no complaints. So I moved to 6.1 on the firewall machine. It
promptly tossed its X11 cookies with either nouveau (which I had setup
and working on 6.0) and nVidia drivers which I tried in frustration. Th=

e

next kernel update fixed the problem. (I was able to work around it sin=

ce

I mostly administer from command-line anyway. And "startx" worked if I
told it to use a display other than the first one.)


Yeah, NVidia is an open source problem.


So moving from 6.1 to 6.2 MIGHT cause problems that sticking with 6.1
and security updates only might avoid. But, then, it might not. What
level of risk are you willing to take, very low or very very low? That

I can go up until that point when it becomes essential to reinstall
the entire system.
Then the very reason of installing SL ( instead of Fedora or similar
distributions with 6 month release cycle) gets diluted.

is your call to make. You're you and I'm me. We face different demands.

Thanks.


Heads up. The longer you wait, the larger the likelihood of problems.
Relatively frequent updates encourage the use of the supported
configuration options, such as using /etc/sysconfig/[servicename],
rather than hand-editing /etc/rc.d/init.d/[servicename] scripts and
manually installing Perl modules direct from CPAN. And don't *get* me
started on what the proprietary NVidia drivers do to the OpenGL
libraries, except to say that they replace them with symlinks and
don't mention it to the RPM system.



-Connie Sieh


Re: Should yum-autoupdate depend on mailx?

2011-09-19 Thread Pat Riehecky

On 09/19/2011 08:52 AM, Alec T. Habig wrote:

Dennis Schridde writes:

So it is indeed a bug? How should I progress from here? (I did not see a
bugtracker on the website.)

Since very few packages actually belong to SL (as opposed to TUV, who
have their own bugzilla), we just say on the mailing list: "Hey Connie
and Pat, here's an easily fixed bug!"

Specifically, please add a mailx dependency to yum-autoupdate.

Low tech but it works :)   Reminds me of a "Letterman" cartoon episode,
for example:

   
http://www.youtube.com/watch?v=z3y_H3SaoAY&feature=results_video&playnext=1&list=PLBE024B04B63BF3E8



Adding it shouldn't be too much work, but from the distribution side we 
don't want to force all our users to run a "sending only" mail server 
(or more) unless they actually want to.  I might instead add a check in 
the script where, if sending mail doesn't look possible, it simply 
doesn't try to send it.  That way people don't have to worry about 
surprise software installation on their next update.  I know I'd freak 
out if suddenly my system is running sendmail/postfix when it wasn't before.


--
Pat Riehecky
Scientific Linux Developer


Re: sl6.1 and sl6x

2011-09-19 Thread Yasha Karant

On 09/19/2011 05:07 AM, Nico Kadel-Garcia wrote:

On Mon, Sep 19, 2011 at 1:16 AM, Tanmoy Chatterjee  wrote:

On Sat, Sep 17, 2011 at 2:09 PM, Tanmoy Chatterjee  wrote:

On Sat, Sep 17, 2011 at 1:48 PM, jdow  wrote:



   This method here is different! Now if I enable SL6.1
repositories only - then when the SL6.2 repo gets available - will it
be available through the gui "SL addons>  yum..>  " or the method is
different ?

THANKS FOR ALL THE RESPONSES.
But as a novice I would again request to shed some light on this part
of my queries.


You have to pick. If you follow the upstream vendor's model, you use
the "6.x" repository, and the updates to 6.2 will be automatically
available. Whether you *install* them is your choice, but they'll be
available. I recommend doing so.

If you use the "6.1" repository, you'll get some updates for a while,
but it will be unsupported in the relatively new feature. It is *not
feasible* to maintain independent sets of backports to all the minor
OS updates, the testing would be nightmarish, and upgrades of one
component for 6.2 might require other individual upgrades not in 6.0
or 6.1. Trying to maintain the multiple subreleases was a nightmare
back in the old "Red Hat 6.0 through Red Hat 6.2" days of the freeware
Red Hat releases, not RHEL or Scientific Linux or CentOS. Prying old,
dead libraries out of the clawing grips of developers or "high
availability" experts who preferred to say "oh, it's stable, no need
for updates" and "it's my machine, don't you worry about it" was a
source of incredible pain when they then came to me and groused about
our network, storage, and open source integration issues when they
refused to allow basic upgrades.

I recently went through this with Subversion, and it was *painful*.


On my machine here I have two very demanding customers, me and my partner.
I kept it on 6.0 until the VM version I have looked stable with 6.1 and
there were no complaints. So I moved to 6.1 on the firewall machine. It
promptly tossed its X11 cookies with either nouveau (which I had setup
and working on 6.0) and nVidia drivers which I tried in frustration. The
next kernel update fixed the problem. (I was able to work around it since
I mostly administer from command-line anyway. And "startx" worked if I
told it to use a display other than the first one.)


Yeah, NVidia is an open source problem.


So moving from 6.1 to 6.2 MIGHT cause problems that sticking with 6.1
and security updates only might avoid. But, then, it might not. What
level of risk are you willing to take, very low or very very low? That

I can go up until that point when it becomes essential to reinstall
the entire system.
Then the very reason of installing SL ( instead of Fedora or similar
distributions with 6 month release cycle) gets diluted.

is your call to make. You're you and I'm me. We face different demands.

Thanks.


Heads up. The longer you wait, the larger the likelihood of problems.
Relatively frequent updates encourage the use of the supported
configuration options, such as using /etc/sysconfig/[servicename],
rather than hand-editing /etc/rc.d/init.d/[servicename] scripts and
manually installing Perl modules direct from CPAN. And don't *get* me
started on what the proprietary NVidia drivers do to the OpenGL
libraries, except to say that they replace them with symlinks and
don't mention it to the RPM system.


A small matter of Nvidia/ATI, Mozilla, and OpenOffice.

For Nvidia, ATI, or other proprietary drivers available from the vendor 
for Linux, I use the proprietary X windows driver.  In all current cases 
on any machine with which I have to work (including those equipped with 
Nvidia GPUs for high performance computing, such as our current latest 
compute engine running SL 6.x *EXCEPT* for the kernel in which we use 
the latest production kernel that allows special drivers -- such as 
those needed for the Infiniband interfaces on our nodes -- to function), 
the Nvidia package from Nvidia that builds the appropriate kernel device 
drivers for X windows does work.  Moreover, this adds all (or almost 
all) control over the functionality built into the hardware by the 
vendor.  Note that on some of our machines (including my office 
workstation that has USB 3 interfaces), we deviate from SL 6x (RHEL 6) 
in terms of the kernel as I just mentioned.  Thus far, for the hardware 
we have, both the Nvidia and ATI proprietary X windows drives seem to 
work -- requiring a rebuild whenever we change kernels.


For the Mozilla suite (Firefox, Thunderbird/Lightning, SeaMonkey), I 
personally use and prefer the latest production release from Mozilla. 
This means that I do not use the stock SL (RHEL) RPMs from the install 
or update mechanisms, and, as root, I do use the internal update 
mechanism from Mozilla.  I have found that Mozilla tracks security 
issues with a faster response time than the distributions seem to do 
(this may be a matter of opinion).  I also upgrade to the latest 
pr

Re: Should yum-autoupdate depend on mailx?

2011-09-19 Thread Alec T. Habig
Dennis Schridde writes:
> So it is indeed a bug? How should I progress from here? (I did not see a 
> bugtracker on the website.)

Since very few packages actually belong to SL (as opposed to TUV, who
have their own bugzilla), we just say on the mailing list: "Hey Connie
and Pat, here's an easily fixed bug!"  

Specifically, please add a mailx dependency to yum-autoupdate.

Low tech but it works :)   Reminds me of a "Letterman" cartoon episode,
for example:

  
http://www.youtube.com/watch?v=z3y_H3SaoAY&feature=results_video&playnext=1&list=PLBE024B04B63BF3E8

-- 
Alec Habig, University of Minnesota Duluth Physics Dept.
ha...@neutrino.d.umn.edu
   http://neutrino.d.umn.edu/~habig/


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Re: sl6.1 and sl6x

2011-09-19 Thread Nico Kadel-Garcia
On Mon, Sep 19, 2011 at 1:16 AM, Tanmoy Chatterjee  wrote:
> On Sat, Sep 17, 2011 at 2:09 PM, Tanmoy Chatterjee  wrote:
>> On Sat, Sep 17, 2011 at 1:48 PM, jdow  wrote:

>>           This method here is different! Now if I enable SL6.1
>> repositories only - then when the SL6.2 repo gets available - will it
>> be available through the gui "SL addons > yum.. > " or the method is
>> different ?
> THANKS FOR ALL THE RESPONSES.
> But as a novice I would again request to shed some light on this part
> of my queries.

You have to pick. If you follow the upstream vendor's model, you use
the "6.x" repository, and the updates to 6.2 will be automatically
available. Whether you *install* them is your choice, but they'll be
available. I recommend doing so.

If you use the "6.1" repository, you'll get some updates for a while,
but it will be unsupported in the relatively new feature. It is *not
feasible* to maintain independent sets of backports to all the minor
OS updates, the testing would be nightmarish, and upgrades of one
component for 6.2 might require other individual upgrades not in 6.0
or 6.1. Trying to maintain the multiple subreleases was a nightmare
back in the old "Red Hat 6.0 through Red Hat 6.2" days of the freeware
Red Hat releases, not RHEL or Scientific Linux or CentOS. Prying old,
dead libraries out of the clawing grips of developers or "high
availability" experts who preferred to say "oh, it's stable, no need
for updates" and "it's my machine, don't you worry about it" was a
source of incredible pain when they then came to me and groused about
our network, storage, and open source integration issues when they
refused to allow basic upgrades.

I recently went through this with Subversion, and it was *painful*.

>>> On my machine here I have two very demanding customers, me and my partner.
>>> I kept it on 6.0 until the VM version I have looked stable with 6.1 and
>>> there were no complaints. So I moved to 6.1 on the firewall machine. It
>>> promptly tossed its X11 cookies with either nouveau (which I had setup
>>> and working on 6.0) and nVidia drivers which I tried in frustration. The
>>> next kernel update fixed the problem. (I was able to work around it since
>>> I mostly administer from command-line anyway. And "startx" worked if I
>>> told it to use a display other than the first one.)

Yeah, NVidia is an open source problem.

>>> So moving from 6.1 to 6.2 MIGHT cause problems that sticking with 6.1
>>> and security updates only might avoid. But, then, it might not. What
>>> level of risk are you willing to take, very low or very very low? That
>> I can go up until that point when it becomes essential to reinstall
>> the entire system.
>> Then the very reason of installing SL ( instead of Fedora or similar
>> distributions with 6 month release cycle) gets diluted.
>>> is your call to make. You're you and I'm me. We face different demands.
>> Thanks.

Heads up. The longer you wait, the larger the likelihood of problems.
Relatively frequent updates encourage the use of the supported
configuration options, such as using /etc/sysconfig/[servicename],
rather than hand-editing /etc/rc.d/init.d/[servicename] scripts and
manually installing Perl modules direct from CPAN. And don't *get* me
started on what the proprietary NVidia drivers do to the OpenGL
libraries, except to say that they replace them with symlinks and
don't mention it to the RPM system.