Hi,

my grub.conf is as below

kernel       /xen.gz dom0_mem=1024M loglvl=all guest_loglvl=all sync_console
console_to_ring com1=115200,8n1 console=vga,com1 lapic=debug
apic_verbosity=debug apic=debug iommu=1 msi=1
module       /vmlinuz-2.6.32.10 ro root=/dev/VolGroup00/LogVol01
console=hvc0 earlyprintk=xen nomodeset initcall_debug debug loglevel=10
module       /initrd-2.6.32.10.img

I tried changing the root=/dev/VolGroup00/LogVol00 as well.

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1.  df -h gives me

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Filesystem Size Used Avail Use% Mounted on

/dev/mapper/VolGroup00-LogVol00

221G 11G 199G 6% /

/dev/sda1 99M 34M 61M 36% /boot

tmpfs 1.8G 0 1.8G 0% /dev/shm
===================================
2.  pvscan gives me
===================================
PV /dev/sda2 VG VolGroup00 lvm2 [232.78 GB / 0 free]

Total: 1 [232.78 GB] / in use: 1 [232.78 GB] / in no VG: 0 [0 ]

===================================

3.  cat /etc/fstab gives mes

===================================

/dev/VolGroup00/LogVol00 / ext3 defaults 1 1

LABEL=/boot /boot ext3 defaults 1 2

tmpfs /dev/shm tmpfs defaults 0 0

devpts /dev/pts devpts gid=5,mode=620 0 0

sysfs /sys sysfs defaults 0 0

proc /proc proc defaults 0 0

/dev/VolGroup00/LogVol01 swap swap defaults 0 0

===================================

I get below message while booting

===================================

Reading all physical volumes.  This may take a while...
Activating logical volumes
  Volume group "VolGroup00" not found
Trying to resume from /dev/VolGroup00/LogVol01
Unable to access resume device (/dev/VolGroup00/LogVol01)
Creating root device.
Mounting root filesystem.
mount: could not find filesystem '/dev/root'
Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
switchroot: mount failed: No such file or directory
init used greatest stack depth: 4088 bytes left
Kernel panic - not syncing: Attempted to kill init!
Pid: 1, comm: init Not tainted 2.6.32.10 #1
Call Trace:
 [<ffffffff8105b743>] panic+0xa5/0x167
 [<ffffffff8100ed91>] ? xen_force_evtchn_callback+0xd/0xf
 [<ffffffff8105f2af>] ? do_exit+0x38a/0x701
 [<ffffffff8100f44f>] ? xen_restore_fl_direct_end+0x0/0x1
 [<ffffffff8108f81f>] ? lock_release+0x179/0x184
 [<ffffffff8108ca21>] ? trace_hardirqs_on+0xd/0xf
 [<ffffffff8147e77f>] ? _write_unlock_irq+0x37/0x3c
 [<ffffffff8105efa3>] do_exit+0x7e/0x701
 [<ffffffff8100f462>] ? check_events+0x12/0x20
 [<ffffffff8105f6c2>] sys_exit_group+0x0/0x1b
 [<ffffffff8105f6d9>] sys_exit_group+0x17/0x1b
 [<ffffffff81012d72>] system_call_fastpath+0x16/0x1b

Can you let me know what should be the grub.conf??