Re: SL 6.0 printer-configuration problems

2011-03-17 Thread Akemi Yagi
On Thu, Mar 17, 2011 at 3:51 PM, Spencer Buckner  wrote:
> I am using System->Administration->Printing to configure an HP DeskJet 500
> printer connected to the parallel port of a stand-alone computer (not part
> of a network). The HP DeskJet 500 is the only printer connected to the
> computer and is specified to be the default printer.
(snip)
> I have seen messages from Ubuntu users with the same problems but have not
> found any understandable fixes. Can anyone help?

SL6 does not have parallel port support (it was dropped upstream). But
ELRepo comes to the rescue :-)

http://elrepo.org/tiki/kmod-lp

Try installing that package and see if that solves your problem.

Akemi


SL 6.0 printer-configuration problems

2011-03-17 Thread Spencer Buckner
 I am using System->Administration->Printing to configure an HP DeskJet 
500 printer connected to the parallel port of a stand-alone computer 
(not part of a network). The HP DeskJet 500 is the only printer 
connected to the computer and is specified to be the default printer.


I have not been able to successfully configure the printer. It worked 
reliably under Fedora 10 and earlier versions of Fedora before I 
installed SL 6.0. I have tried the following configuration Settings:


   Network Printer->LPD/LPR Host or Printer
   Description:HP DeskJet 500
   Location:
   Device URI: lpd://localhost
   Make and Model: HP DeskJet 500 Foomatic/pcl3 (recommended)

   Network Printer->AppSocket/HP JetDirect
   Description:HP DeskJet 500
   Location:
   Device URI: socket://localhost:9100
   Make and Model: HP DeskJet 500 Foomatic/pcl3 (recommended)

   Devices: A printer connected to the parallel port.
   Description:HP DeskJet 500
   Location:
   Device URI: parallel:/dev/lp1
   Make and Model: HP DeskJet 500 Foomatic/pcl3 (recommended)

Results:
   1. The command, Network Printer->Find Network Printer, never works. 
(The printer _is_ turned on.)

   2. The command, Print Test Page, produces error messages:
 com.apple.print.recoverable
  or:
 Printer 'HP-DeskJet-500' may not be connected. (The printer 
_is_ connected.)


I have seen messages from Ubuntu users with the same problems but have 
not found any understandable fixes. Can anyone help?


Thanks,

Spencer



Re: GDM theme

2011-03-17 Thread Vaclav Mocek

On 03/17/2011 09:21 PM, Chris Tooley wrote:

Ok, this is a really stupid question:

How do I change the theme for GDM in SL6?

Thanks,
-Chris

Not sure, it has been changed in Fedora 12/13 and SL6 uses the same way. 
If you want to change the background of the login screen, change the 
file "default.xml" in "/usr/share/backgrounds/"; there is a file 
"tuv.xml" which is  .


Re: Persistent Data in SL LiveDVD on USB

2011-03-17 Thread Urs Beyerle

Hi William,

You have definitely no overlay file with the name "overlay--4C04-9372" in 
/LiveOS folder on your USB stick. So overlay will not work.

> [root@livecd sluser]# dir /overlayfs/LiveOS/
> home.img  osmin.img squashfs.img

It's hard to say why this happened. However, it should be possible to create 
the overlay file just manually.
Change to the /LiveOS on your USB stick and run

dd if=/dev/zero of=overlay--4C04-9372 count=1024 bs=1M

This will create a 1024 MB file (/LiveOS/overlay--4C04-9372) filled with zeros.

If you now boot your USB stick the file /LiveOS/overlay--4C04-9372 should be 
found and take to store the persistence changes.

Please note that the overlay file should not be used completely:
http://www.livecd.ethz.ch/usbdisk.html#limits

In worst case you can just remove it again and start with a new and "empty" one.

Cheers,

Urs




On 03/17/2011 08:56 PM, William Shu wrote:

Dear Urs,

What I obtained is below. Unfortunately, a bit mobile now, I have only the USB 
stick to work on SL6 and so cannot un-install it as such; but I had no 
complaints!

I recall when installing SL6 on the USB that I had warning about its label 
(made up of some control-character sequence, starting, I think, with ^17). 
Since installation was complete, and in prior attempts the label was changed, I 
did not think it was a problem. Now, I'm not so sure!

Regards,

William.

[sluser@livecd ~]$ su
[root@livecd sluser]# dir /LiveOS/overlay--4C04-9372
dir: cannot access /LiveOS/overlay--4C04-9372: No such file or directory
[root@livecd sluser]# dir /LiveOS/overlay--4C04-9372
[root@livecd sluser]# find / -iname "*4C04-9372*" -print
/dev/disk/by-uuid/4C04-9372
/dev/.udev/links/disk\x2fby-uuid\x2f4C04-9372
[root@livecd sluser]# mkdir /overlayfs
[root@livecd sluser]# mount -n -t auto UUID=4C04-9372 /overlayfs
[root@livecd sluser]# [ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w 
/overlayfs/LiveOS/overlay--4C04-9372 ]&&  echo ok
[root@livecd sluser]# dir /overlayfs/
boot/ EFI/  LiveOS/   syslinux/
[root@livecd sluser]# dir /overlayfs/LiveOS/
home.img  osmin.img squashfs.img
[root@livecd sluser]#

William

--- On Thu, 3/17/11, Urs Beyerle  wrote:


From: Urs Beyerle
Subject: Re: Persistent Data in SL LiveDVD on USB
To: "William Shu"
Cc: scientific-linux-us...@fnal.gov
Date: Thursday, March 17, 2011, 10:00 AM
Hi William

On 03/17/2011 06:15 AM, William Shu wrote:

Thank you very much Urs.

Below are the requested outputs: (A) for losetup; and

(B) for dracut. It seems the overlay is not being found!


On a related matter, you say livecd-tools and

liveusb-creator are part of the live iso's, but I had to
"yum install" them before I could use them in making the
USB!




Thanks for the debug info.

You are right. liveusb-creator is not part of Live iso's.
But livecd-tools and therefore livecd-iso-to-disk should be

installed. However, doing "yum update livecd-tools" is
always a good idea.

Yes, the overlay is not found in your case:

dracut: + mkdir /overlayfs
dracut: + mount -n -t auto UUID=4C04-9372 /overlayfs
dracut: + [ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w
/overlayfs/LiveOS/overlay--4C04-9372 ]
dracut: + umount -l /overlayfs
dracut: + [ -z  ]
dracut: + [ -n UUID=4C04-9372 -a -n
/LiveOS/overlay--4C04-9372 ]
dracut: + warn Unable to find persistent overlay; using
temporary

Can you quickly check, if the overlay file is on your Live
USB drive and if it is writable (w)? In your case the
overlay
file should be

/LiveOS/overlay--4C04-9372

You might want to reproduce the mounting of your USB stick
(as done be dracut) on a SL6 system. Plugin the stick. If it

gets auto-mounted, un-mount it. As root try

mkdir /overlayfs
mount -n -t auto UUID=4C04-9372 /overlayfs
[ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w
/overlayfs/LiveOS/overlay--4C04-9372 ]&&  echo ok


Cheers,

 Urs







Re: Virtual floppy as sda on Dell M605 blades

2011-03-17 Thread Stephan Wiesand

On Mar 17, 2011, at 19:20 , Joel Maslak wrote:

> I'm seeing some differences in SCSI drive numbering in SL 6 / RHEL 6, 
> compared to CentOS 5 / RHEL 5.  This means that on *some* of my servers, 
> /dev/sdb is actually the first hard disk, which makes kickstarting a bit more 
> annoying.  Does anyone know a way to reverse the order or similar easily?

We're using "pci=bfsort" for SL5 and "pci=bfsort nousb" for SL6 when 
kickstarting. The "pci=bfsort" is kept on the installed system, "nousb" isn't. 
Eventually, using /dev/disk/by-* will be the right solution, but for the time 
being these kernel parameters give us consistent device enumeration across 
SL5/6.

- Stephan

>  A parameter to grub to either remove the virtual floppy or reorder these 
> would be handy, if someone knows of one.  Certainly I can disable the virtual 
> floppy in these machines, but I'd rather not do that (it's needed for BIOS 
> updates).
> 
> In CentOS 5 / RHEL 5, I would see disk configurations such as:
> 
> scsi 0:0:0:0: CD-ROM Virtual CDROM1.00 PQ: 0 ANSI: 0 
> CCS
> scsi 1:0:0:0: Direct-Access  Virtual Floppy   1.00 PQ: 0 ANSI: 0 
> CCS
> scsi 2:0:0:0: Direct-Access SEAGATE  ST973451SS   SM04 PQ: 0 ANSI: 5
> scsi 2:0:1:0: Direct-Access SEAGATE  ST973451SS   SM04 PQ: 0 ANSI: 5
> scsi 2:1:0:0: Direct-Access Dell VIRTUAL DISK 1028 PQ: 0 ANSI: 5
> s
> sd 0:1:0:0: Attached scsi disk sda
> sd 2:0:0:0: Attached scsi removable disk sdb
> 
> Basically, sda was the internal RAID 1 disk array and sdb is the DRAC 
> "virtual floppy".  This worked fine, and our scripts knew to expect sda as 
> the first disk.  Note that these are identical systems, purchased at the same 
> time and delivered together.
> 
> On SL 6 / RHEL 6, it reverses the order of sda and sdb:
> 
> scsi 0:0:0:0: CD-ROM Virtual CDROM1.00 PQ: 0 ANSI: 0 
> CCS
> scsi 1:0:0:0: Direct-Access  Virtual Floppy   1.00 PQ: 0 ANSI: 0 
> CCS
> scsi 2:0:0:0: Direct-Access SEAGATE  ST973451SS   SM04 PQ: 0 ANSI: 5
> scsi 2:0:1:0: Direct-Access SEAGATE  ST973451SS   SM04 PQ: 0 ANSI: 5
> scsi 2:1:0:0: Direct-Access Dell VIRTUAL DISK 1028 PQ: 0 ANSI: 5
> sd 2:1:0:0: [sdb] Attached SCSI disk
> sd 1:0:0:0: [sda] Attached SCSI removable disk
> 
> (sdb becomes 1:0:0:0, sdb becomes 2:0:0:0)

-- 
Stephan Wiesand
DESY -DV-
Platanenenallee 6
15738 Zeuthen, Germany



smime.p7s
Description: S/MIME cryptographic signature


public keys and SL6

2011-03-17 Thread Robert E. Blair
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

I came across an odd feature in sl6 and maybe someone understands what
causes this.  It seems that SL6 has an agent that does an ssh-add when
you log in.  Unfortunately, it appears to snarf up any key you happen to
have in your .ssh area even ones with nonstandard names.  It has the
rather disturbing feature that if you do a ssh-add -l immediately after
logging in it shows your encrypted private key as being loaded.  It
seems not to be really since when you try to use it it then asks for the
pass phrase with a gui popup.  I'm guessing that it just looks at the
pub part and recognizes that you "might use it" later.

In my case I keep some specialized unencrypted keys for specific
functions (i.e. in the remote authorized_keys file these guys allow
execution of a single rather harmless command).  It seems that these get
ssh-add'ed automatically at login and they are presented to the remote
hosts in ways that preclude my using public key access on the second hop
in a chain of ssh's (yes initially the real encrypted key gets used but
on the second hop it appears the specialized ones get presented and
force a failure for an actual login).  I googled and found that there is
an openssh agent in the startup applications that appears to have a
related function but I don't seem to have that enabled so configuring is
likely futile.  I do have a workaround (simply move all these keys to
some other area than .ssh) but I'm curious as to what is doing this and
it seems like something people might want to be aware of.

- -- 
Robert E. Blair, Room C221, Building 360
Argonne National Laboratory (High Energy Physics Division)
9700 South Cass Avenue, Argonne, IL 60439, USA
Phone: (630)-252-7545  FAX: (630)-252-5047
GnuPG Public Key: http://www.hep.anl.gov/reb/key.asc
-BEGIN PGP SIGNATURE-
Version: GnuPG v2.0.14 (GNU/Linux)

iEYEARECAAYFAk2CgIsACgkQOMIGC6x7/XQrfACgl/SAarLpTYwNB/OYyJiHcTU6
wsYAn20O6f3wytPmBLxTASgTxhtdP2a8
=Ir7x
-END PGP SIGNATURE-
<>

smime.p7s
Description: S/MIME Cryptographic Signature


GDM theme

2011-03-17 Thread Chris Tooley

Ok, this is a really stupid question:

How do I change the theme for GDM in SL6?

Thanks,
-Chris


Re: Persistent Data in SL LiveDVD on USB

2011-03-17 Thread William Shu
Dear Urs,

What I obtained is below. Unfortunately, a bit mobile now, I have only the USB 
stick to work on SL6 and so cannot un-install it as such; but I had no 
complaints!

I recall when installing SL6 on the USB that I had warning about its label 
(made up of some control-character sequence, starting, I think, with ^17). 
Since installation was complete, and in prior attempts the label was changed, I 
did not think it was a problem. Now, I'm not so sure!

Regards,

William.

[sluser@livecd ~]$ su
[root@livecd sluser]# dir /LiveOS/overlay--4C04-9372
dir: cannot access /LiveOS/overlay--4C04-9372: No such file or directory
[root@livecd sluser]# dir /LiveOS/overlay--4C04-9372
[root@livecd sluser]# find / -iname "*4C04-9372*" -print
/dev/disk/by-uuid/4C04-9372
/dev/.udev/links/disk\x2fby-uuid\x2f4C04-9372
[root@livecd sluser]# mkdir /overlayfs
[root@livecd sluser]# mount -n -t auto UUID=4C04-9372 /overlayfs
[root@livecd sluser]# [ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w 
/overlayfs/LiveOS/overlay--4C04-9372 ] && echo ok
[root@livecd sluser]# dir /overlayfs/
boot/ EFI/  LiveOS/   syslinux/ 
[root@livecd sluser]# dir /overlayfs/LiveOS/
home.img  osmin.img squashfs.img  
[root@livecd sluser]# 

William

--- On Thu, 3/17/11, Urs Beyerle  wrote:

> From: Urs Beyerle 
> Subject: Re: Persistent Data in SL LiveDVD on USB
> To: "William Shu" 
> Cc: scientific-linux-us...@fnal.gov
> Date: Thursday, March 17, 2011, 10:00 AM
> Hi William
> 
> On 03/17/2011 06:15 AM, William Shu wrote:
> > Thank you very much Urs.
> >
> > Below are the requested outputs: (A) for losetup; and
> (B) for dracut. It seems the overlay is not being found!
> >
> > On a related matter, you say livecd-tools and
> liveusb-creator are part of the live iso's, but I had to
> "yum install" them before I could use them in making the
> USB!
> >
> 
> Thanks for the debug info.
> 
> You are right. liveusb-creator is not part of Live iso's.
> But livecd-tools and therefore livecd-iso-to-disk should be
> 
> installed. However, doing "yum update livecd-tools" is
> always a good idea.
> 
> Yes, the overlay is not found in your case:
> 
> dracut: + mkdir /overlayfs
> dracut: + mount -n -t auto UUID=4C04-9372 /overlayfs
> dracut: + [ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w
> /overlayfs/LiveOS/overlay--4C04-9372 ]
> dracut: + umount -l /overlayfs
> dracut: + [ -z  ]
> dracut: + [ -n UUID=4C04-9372 -a -n
> /LiveOS/overlay--4C04-9372 ]
> dracut: + warn Unable to find persistent overlay; using
> temporary
> 
> Can you quickly check, if the overlay file is on your Live
> USB drive and if it is writable (w)? In your case the
> overlay 
> file should be
> 
> /LiveOS/overlay--4C04-9372
> 
> You might want to reproduce the mounting of your USB stick
> (as done be dracut) on a SL6 system. Plugin the stick. If it
> 
> gets auto-mounted, un-mount it. As root try
> 
> mkdir /overlayfs
> mount -n -t auto UUID=4C04-9372 /overlayfs
> [ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w
> /overlayfs/LiveOS/overlay--4C04-9372 ] && echo ok
> 
> 
> Cheers,
> 
>     Urs
> 





Re: Virtual floppy as sda on Dell M605 blades

2011-03-17 Thread Orion Poplawski

On 03/17/2011 12:20 PM, Joel Maslak wrote:

I'm seeing some differences in SCSI drive numbering in SL 6 / RHEL 6, compared
to CentOS 5 / RHEL 5.  This means that on *some* of my servers, /dev/sdb is
actually the first hard disk, which makes kickstarting a bit more annoying.
Does anyone know a way to reverse the order or similar easily?  A parameter to
grub to either remove the virtual floppy or reorder these would be handy, if
someone knows of one.  Certainly I can disable the virtual floppy in these
machines, but I'd rather not do that (it's needed for BIOS updates).


Well, hopefully with 6.1 you'll be able to use /dev/disk/by-path labels, see:

https://bugzilla.redhat.com/show_bug.cgi?id=621515

I've made a request there for an updates image.  Might not be too hard to do.

Actually, the more I look at this, part --ondisk might work and only part 
--onpart doesn't not.  Not sure.


--
Orion Poplawski
Technical Manager 303-415-9701 x222
NWRA/CoRA DivisionFAX: 303-415-9702
3380 Mitchell Lane  or...@cora.nwra.com
Boulder, CO 80301  http://www.cora.nwra.com


Re: Installing upstream providers documentation locally

2011-03-17 Thread Troy Dawson

On 03/17/2011 07:06 AM, Matt Willsher wrote:

Hello,

Are there RPM packages available that contain the upstream vendor's
manuals for SL6 for location installation? If there aren't in SL6, are
they in the upstream vendor's distribution?

Thanks,
Matt


They are not in SL6.  If they are somewhere else, I don't know.

I am impressed by the number of formats TUV has their documents in 
nowdays. (epub, pdf, html, single-html)


Troy
--
__
Troy Dawson  daw...@fnal.gov  (630)840-6468
Fermilab  ComputingDivision/SCF/FEF/SLSMS Group
__


Virtual floppy as sda on Dell M605 blades

2011-03-17 Thread Joel Maslak
I'm seeing some differences in SCSI drive numbering in SL 6 / RHEL 6,
compared to CentOS 5 / RHEL 5.  This means that on *some* of my servers,
/dev/sdb is actually the first hard disk, which makes kickstarting a bit
more annoying.  Does anyone know a way to reverse the order or similar
easily?  A parameter to grub to either remove the virtual floppy or reorder
these would be handy, if someone knows of one.  Certainly I can disable the
virtual floppy in these machines, but I'd rather not do that (it's needed
for BIOS updates).

In CentOS 5 / RHEL 5, I would see disk configurations such as:

scsi 0:0:0:0: CD-ROM Virtual CDROM1.00 PQ: 0 ANSI: 0
CCS
scsi 1:0:0:0: Direct-Access  Virtual Floppy   1.00 PQ: 0 ANSI: 0
CCS
scsi 2:0:0:0: Direct-Access SEAGATE  ST973451SS   SM04 PQ: 0 ANSI: 5
scsi 2:0:1:0: Direct-Access SEAGATE  ST973451SS   SM04 PQ: 0 ANSI: 5
scsi 2:1:0:0: Direct-Access Dell VIRTUAL DISK 1028 PQ: 0 ANSI: 5
s
sd 0:1:0:0: Attached scsi disk sda
sd 2:0:0:0: Attached scsi removable disk sdb

Basically, sda was the internal RAID 1 disk array and sdb is the DRAC
"virtual floppy".  This worked fine, and our scripts knew to expect sda as
the first disk.  Note that these are identical systems, purchased at the
same time and delivered together.

On SL 6 / RHEL 6, it reverses the order of sda and sdb:

scsi 0:0:0:0: CD-ROM Virtual CDROM1.00 PQ: 0 ANSI: 0
CCS
scsi 1:0:0:0: Direct-Access  Virtual Floppy   1.00 PQ: 0 ANSI: 0
CCS
scsi 2:0:0:0: Direct-Access SEAGATE  ST973451SS   SM04 PQ: 0 ANSI: 5
scsi 2:0:1:0: Direct-Access SEAGATE  ST973451SS   SM04 PQ: 0 ANSI: 5
scsi 2:1:0:0: Direct-Access Dell VIRTUAL DISK 1028 PQ: 0 ANSI: 5
sd 2:1:0:0: [sdb] Attached SCSI disk
sd 1:0:0:0: [sda] Attached SCSI removable disk

(sdb becomes 1:0:0:0, sdb becomes 2:0:0:0)

-- 
*Joel Maslak
*Director, Information Technology | Local Matters Inc.

*Office:* 303.285.3533
*Email:* jmas...@localmatters.com | *Web:* http://www.localmatters.com
*Blog:* http://www.localmatters.com/blog |*Twitter:* @matterslocal

Join the conversation: Insights on local search, online advertising and more
at http://www.localmatters.com/blog


Re: why does 32-bit SL6 have a loadable module for 64-bit btrfs?

2011-03-17 Thread Akemi Yagi
On Thu, Mar 17, 2011 at 8:49 AM, Lamar Owen  wrote:

> I don't see a mention of btrfs in Red Hat's release notes.

Looks like it is mentioned only in the Installation guide and Technical Notes:

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/Adding_Partitions-x86.html

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Technical_Notes/storage.html

> Ok, so looking in the spec file for SL6/RHEL6:
> %changelog
> * Mon Jun  7 2010 Josef Bacik  0.19-11
> - fix btrfs-progs so it only buils on x86_64, Resolves: rhbz#596690
>
> Hmm, let's see:
> https://bugzilla.redhat.com/show_bug.cgi?id=596690
> Title: missing package btrfs-progs for i686
> "BTRFS is going to be Tech Preview only for x86_64, you will not be able to 
> use it on any other architecture."
>
> Doesn't say why.

Indeed.

Akemi


Re: why does 32-bit SL6 have a loadable module for 64-bit btrfs?

2011-03-17 Thread Lamar Owen
[Going back on-list, as I originally forgot to reply-all, and this might 
interest others.]

On Thursday, March 17, 2011 08:56:45 am you wrote:
> On Thu, 17 Mar 2011, Lamar Owen wrote:
> > Well, this is one that, due to the new kernel source packaging,
> > you'd have to ask upstream, since SL's kernel is a direct rebuild.
 
>   i suspected as much, but am i at least sane to think that this is a
> strange combination of packaging?

Yes, you're quite sane, assuming that btrfs can't possibly be supported by a 
32-bit kernel.  After all, a 32-bit kernel can support (not well, but that's 
another matter) an XFS filesystem up to 16TB of occupied data; I got bit by 
that, with a 20TB LVM logical volume formatted XFS, with a 32-bit kernel.  When 
the amount of data on that filesystem went above 16TB (which it did), the 
kernel lost its ability to mount that filesystem.  MD5 sum checks on the files 
in that filesystem, once I restored access to it by installing a 64-bit CentOS, 
passed and so I knew no data was corrupted.

And, in fact, googling around I find in
https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/607632
that at least on Ubuntu a 32-bit kernel can do btrfs.

I don't see a mention of btrfs in Red Hat's release notes.  

It's listed as experimental in the Fedora documentation from Fedora 11; just 
checking now on my Fedora 14 32-bit box, I see:
[root@localhost ~]# yum list|grep btrfs
btrfs-progs.i6860.19-12.fc14 fedora 

So F14 has 32-bit btrfs-progs.

Ok, so looking in the spec file for SL6/RHEL6:
%changelog
* Mon Jun  7 2010 Josef Bacik  0.19-11
- fix btrfs-progs so it only buils on x86_64, Resolves: rhbz#596690

Hmm, let's see:
https://bugzilla.redhat.com/show_bug.cgi?id=596690
Title: missing package btrfs-progs for i686
"BTRFS is going to be Tech Preview only for x86_64, you will not be able to use 
it on any other architecture."

Doesn't say why.


Installing upstream providers documentation locally

2011-03-17 Thread Matt Willsher
Hello,

Are there RPM packages available that contain the upstream vendor's manuals
for SL6 for location installation? If there aren't in SL6, are they in the
upstream vendor's distribution?

Thanks,
Matt


why does 32-bit SL6 have a loadable module for 64-bit btrfs?

2011-03-17 Thread Robert P. J. Day
  still teaching my class on RH sys admin using SL6 and, spur of the
moment, decided to show students how to format and mount a btrfs
filesystem, only to discover that the 32-bit version of SL6 on their
student systems couldn't find the btrfs-progs package, because (of
course) btrfs is a 64-bit filesystem.

  but what surprised me was that their 32-bit installs *did* have the
loadable module btrfs.ko, which i find odd.  what's the point of a
loadable module for btrfs when the system has no corresponding
userspace utilities?

rday

-- 


Robert P. J. Day   Waterloo, Ontario, CANADA
http://crashcourse.ca

Twitter:   http://twitter.com/rpjday
LinkedIn:   http://ca.linkedin.com/in/rpjday



Re: Persistent Data in SL LiveDVD on USB

2011-03-17 Thread Urs Beyerle

Hi William

On 03/17/2011 06:15 AM, William Shu wrote:

Thank you very much Urs.

Below are the requested outputs: (A) for losetup; and (B) for dracut. It seems 
the overlay is not being found!

On a related matter, you say livecd-tools and liveusb-creator are part of the live iso's, 
but I had to "yum install" them before I could use them in making the USB!



Thanks for the debug info.

You are right. liveusb-creator is not part of Live iso's. But livecd-tools and therefore livecd-iso-to-disk should be 
installed. However, doing "yum update livecd-tools" is always a good idea.


Yes, the overlay is not found in your case:

dracut: + mkdir /overlayfs
dracut: + mount -n -t auto UUID=4C04-9372 /overlayfs
dracut: + [ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w 
/overlayfs/LiveOS/overlay--4C04-9372 ]
dracut: + umount -l /overlayfs
dracut: + [ -z  ]
dracut: + [ -n UUID=4C04-9372 -a -n /LiveOS/overlay--4C04-9372 ]
dracut: + warn Unable to find persistent overlay; using temporary

Can you quickly check, if the overlay file is on your Live USB drive and if it is writable (w)? In your case the overlay 
file should be


/LiveOS/overlay--4C04-9372

You might want to reproduce the mounting of your USB stick (as done be dracut) on a SL6 system. Plugin the stick. If it 
gets auto-mounted, un-mount it. As root try


mkdir /overlayfs
mount -n -t auto UUID=4C04-9372 /overlayfs
[ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w /overlayfs/LiveOS/overlay--4C04-9372 ] 
&& echo ok


Cheers,

Urs


Re: No success installing ATI Radeon HD5970 driver

2011-03-17 Thread Wil Irwin
Hi Phil-

Very rewarding, if not a bit confusing, starting from scratch with the "SL6
Live" installation and THEN making the leap to install the proprietary ATI
(release 02/15/2011) drivers worked. In fact, the SL6 Live appeared
(literally) to recognize the graphics subsystem in that the installation
feedback stream was at a font size (and type?!?) which was readable (if one
can speed read).

My objective was not to have proprietary ATI control, but it is present and
the performance is what would be expected with this display driver. It was
almost perfectly smooth. After most initial prelim installation of system
updates and such, graphics failed. But after the delightful success of the
initial performance, a quick re-install of ATI things solved the problem(s).

I should add that while I was very motivated to get maximum performance
(data visualization, not games), the "basic" display driver components which
were packaged with SL DVD LIVE proper recognized not only the display card
but the monitor model.

Thus far keeping fingers crossed. I don't know if I can offer further help
others to solve this rather hideous problem(s), but I will endeavor to keep
technical information forthcoming.

Best regards,
Wil

On Wed, Mar 16, 2011 at 1:54 PM, Phil Perry  wrote:

> On 16/03/11 20:02, Wil Irwin wrote:
>
>> Hi Phil-
>>
>> I VERY much appreciate your suggestion and help. Sadly, these repo options
>> didn't solve my problem.
>>
>>
> Hmm :-(
>
>
>  "Everything" installed correctly (i.e., without error and a clean install
>> report). However, I was unable to make any changes using the SL default
>> 'display' GUI.
>>
>> I noted that elsewhere in the repo documentation (which I hastily ignored
>> due to the excitement over your solution), the HD 5970 series was not
>> included in the list of supported devices.
>>
>>
> I'm really unsure which models are supported by which driver - I can't seem
> to find this information in the ATI documentation. The list of supported
> devices in the elrepo.org documentation is for the older legacy driver,
> not the current release.
>
> All I can tell you is that when I go to the ATI driver download page, and
> enter your device, it says the current (11.2) driver supports your card. I
> have no idea when support was added. Most documentation only states that
> current cards are supported by the current driver.
>
>
>  Am I missing something completely? I do have experience with Linux
>> installations (not an expert by any means). And, specifically, have fought
>> with display adaptor installations endlessly. Probably one of the most
>> frustrating aspect of getting a new system up and running.
>>
>> Thanks again for any further guidance you can provide.
>>
>>
> I'm not an ATI user so it's difficult for me to offer much in the way of
> informed advice. Do you see any errors in your Xorg logs or anything else
> useful to go on?
>
> Reading back through the thread, about the only thing I can think to check
> is regarding your /etc/X11/xorg.conf file. By default, SL6 doesn't have an
> xorg.conf file. The elrepo.org packages will create a suitable xorg.conf
> file during the installation of the drivers. If you've already created one
> then the elrepo.org package will try to use that but if it's broken then
> it's not going to work. Thus I would suggest uninstalling the 
> elrepo.orgpackages, make sure you (backup if necessary, and) delete 
> /etc/X11/xorg.conf
> if it still exists and then reinstall the packages. Just a guess really.
>
>