Hi,

Can xen developers kindly post relevant solution to this problem. I have seen many times on xen list- not a simple answer. It has come to the point of frustration. I can provide any information needed.

Regards,

Vineet

---------- Forwarded message ----------

From: vineet chadha <virtual.chadha@xxxxxxxxx>
Date: Jun 13, 2006 8:42 AM
Subject: switchroot mount failed

To: xen-users@xxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx

All,

I am running xen3.0.2 and xen unstable on RHEL 4, and get this error when trying to boot Xen kernel(domain0)
......
Creating root device
Mounting root filesystem
mount: error 6 mounting ext3
mount: error 2 mounting none
Switching to new root
switchroot: mount failed: 22
umount /initrd/dev failed: 2
Kernel panic - not syncing: Attempting to kill init!

Then system reboot.In grub.conf,I have change d the root=LABEL=/ to the actual device
(root=/dev/sda 3),and make the same change in /etc/fstab, but I got same error.

My system is Intel Xeon, Dual Core Machine, 2.8GHz. 32 bit Linux

my installation steps as below,

# pwd
/home/vineet/xen-3.0.2
# make world
# make install

# cd /boot
# depmod 2.6.16-xen
# mkinitrd -f -v initrd-2.6.16-xen.img 2.6.16-xen
Creating initramfs
Looking for deps of module scsi_mod
Looking for deps of module sd_mod scsi_mod
Looking for deps of module scsi_mod
Looking for deps of module unknown
Looking for deps of module mptbase
Looking for deps of module mptscsih mptbase scsi_mod
Looking for deps of module mptbase
Looking for deps of module scsi_mod
Looking for deps of module ide-disk
Looking for deps of module dm-mod
Looking for deps of module ext3 jbd
Looking for deps of module jbd
Using modules: ./kernel/drivers/scsi/scsi_mod.ko ./kernel/drivers/scsi/sd_mod.ko ./kernel/drivers/message/fusion/mptbase.ko ./kernel/drivers/message/fusion/mptscsih.ko ./kernel/drivers/md/dm- mod.ko ./kernel/fs/jbd/jbd.ko ./kernel/fs/ext3/ext3.ko

/sbin/nash -> /tmp/initrd.L28813/bin/nash
/sbin/insmod.static -> /tmp/initrd.L28813/bin/insmod
/sbin/udev.static -> /tmp/initrd.L28813/sbin/udev
/etc/udev/udev.conf -> /tmp/initrd.L28813/etc/udev/udev.conf
copy from /lib/modules/2.6.16-xen/./kernel/drivers/scsi/scsi_mod.ko(elf32-i386) to /tmp/initrd.L28813/lib/scsi_mod.ko(elf32-i386)

copy from /lib/modules/2.6.16-xen/./kernel/drivers/scsi/sd_mod.ko(elf32-i386) to /tmp/initrd.L28813/lib/sd_mod.ko(elf32-i386)

copy from /lib/modules/2.6.16-xen/./kernel/drivers/message/fusion/mptbase.ko(elf32-i386) to /tmp/initrd.L28813/lib/mptbase.ko(elf32-i386)

copy from /lib/modules/2.6.16-xen/./kernel/drivers/message/fusion/mptscsih.ko(elf32-i386) to /tmp/initrd.L28813/lib/mptscsih.ko(elf32-i386)

copy from /lib/modules/2.6.16-xen/./kernel/drivers/md/dm-mod.ko(elf32-i386) to /tmp/initrd.L28813/lib/dm-mod.ko(elf32-i386)

copy from /lib/modules/2.6.16-xen/./kernel/fs/jbd/jbd.ko(elf32-i386) to /tmp/initrd.L28813/lib/jbd.ko(elf32-i386)
copy from /lib/modules/2.6.16-xen/./kernel/fs/ext3/ext3.ko(elf32-i386) to /tmp/initrd.L28813/lib/ext3.ko(elf32-i386)
Loading module scsi_mod
Loading module sd_mod
Loading module mptbase
Loading module mptscsih
Loading module dm-mod
Loading module jbd
Loading module ext3
#

My grub.conf file:

default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat enterprise linux (2.6.9-22.ELsmp)
root (hd0,0)
kernel /vmlinuz-2.6.9-22.ELsmp ro root=LABEL=/ rhgb quiet
initrd /initrd-2.6.9-22.ELsmp.img
title Red Hat enterprise linux (2.6.9-22.EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-22.EL ro root=LABEL=/ rhgb quiet
initrd /initrd- 2.6.9-22.EL.img
title Xen 3.0 / XenLinux 2.6
root (hd0,0)
kernel /xen-3.0.gz
module /vmlinuz-2.6-xen root=LABEL=/ ro console=tty0
module /initrd-2.6.16-xen.img

I have tried giving different options to creation of mkinitrd command but it doesnot work. I have tried "builtin" and "with" options and it doesnot worl. In addition, I have tried to make hyperthreading disabled,it doesnot work for me.

I have seen many such messages but no concrete solution to this problem. Please help.

-Vineet