Re: [Xen-users] Xen 3.0.4 on RH EL 4.4 - can't make it boot kerne l

["Omer Khalid" <Omer.Khalid@xxxxxxx>]

You would need to make it default, as a back you should add another attribute to your grub.conf file:

default=2
fallback=0

So if default fails, then the fallback would be booted which is your normal system ! With fallback option, you don't end up into a dead lock where you can't access your system! You are booting the xen kernal in the first place, and to do that the default option have to be set!

Cheers
Omer

On 3/1/07, Foreman, Tim <tforeman@xxxxxxxxx> wrote:

I didn't want to make the Xen kernel the default until I was
sure that it would boot correctly.

When I put the root=LABEL=/ on it I get an error:

mkrootdev: label / not found

--Tim

-----Original Message-----
From: okhalid.cern@xxxxxxxxx [mailto:okhalid.cern@xxxxxxxxx]On Behalf Of
Omer Khalid
Sent: Thursday, March 01, 2007 9:24 AM
To: Foreman, Tim
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Xen 3.0.4 on RH EL 4.4 - can't make it boot kernel


Hi Tim,

The first thing I noticed in your grub.conf is that your xen configuration
have index value 0f 2, while the default=0. It should be default=2. I hope
this should sort the obvious problem.

Secondly, why are you not using root=LABEL=/ rather root=/dev/hda1!

Cheers
Omer


On 3/1/07, Foreman, Tim <tforeman@xxxxxxxxx> wrote:
I'm trying to build a Xen server on Enterprise 4.4 and I can't
get the Xen kernel to boot.

I installed the kernel rpm and the Xen rpm and my grub.conf looks
like this:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You do not have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /, eg.
#          root (hd0,0)
#          kernel /boot/vmlinuz-version ro root=/dev/hda1
#          initrd /boot/initrd-version.img
#boot=/dev/hda
default=0
timeout=5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux ES ( 2.6.9-42.ELsmp)
        root (hd0,0)
        kernel /boot/vmlinuz-2.6.9-42.ELsmp ro root=LABEL=/
        initrd /boot/initrd-2.6.9-42.ELsmp.img
title Red Hat Enterprise Linux ES-up (2.6.9-42.EL)
        root (hd0,0)
        kernel /boot/vmlinuz-2.6.9-42.EL ro root=LABEL=/
        initrd /boot/initrd-2.6.9-42.EL.img
title Red Hat Enterprise Linux ES Xen (2.6.16.33-xen_3.0.4.1)
        root (hd0,0)
        kernel /boot/xen- 3.0.4.1.gz
        module /boot/vmlinuz-2.6.16.33-xen_3.0.4.1 ro root=/dev/hda1
        module /boot/initrd- 2.6.16.33-xen_3.0.4.1.img

When I try and boot the Xen kernel it stops with the following errors:

Loading ide-disk.ko module
ide_disk: no version for "struct_module" found: kernel tainted.
Creating root device
Mounting root filesystem
mount: error 6 mounting ext2
mount: error 2 mounting none
Switching to new root
switchroot: mount failed: 22
umount /initrd/dev failed: 2
Kernel panic - not syncing: Attempted to kill init!

I did some googling and found some indications that it might have been
related to using the ext3 filesystem, so I rebuild the server with ext2
and got the same results.

Any suggestions?
--
Timothy W. Foreman ~ Security Administrator ~ tforeman@xxxxxxxxx
(651) 365-4181     ~ Internet Broadcasting  ~ www.ibsys.com
--
The Onion: Have you decided what you want to be when you grow up?
Berkeley Breathed: Dad. The rest is frosting.

-- 
---------------------------------------------------------------
                                                                             
CERN – European Organization for Nuclear 
IT Department,  CH-1211 Geneva 23, Switzerland

Phone: +41 (0) 22 767 7996
Fax:     +41 (0) 22 767 4900
E-mail : Omer.Khalid@xxxxxxx
Homepage: http://cern.ch/Omer.Khalid
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