[Xen-users] /dev/sda2 does not exist. Dropping to a shell! (Dom0: Ubuntu 10.10, DomU: Ubuntu 10.10)

[Hitesh Khandelwal <hitesh.iitk@xxxxxxxxx>]

Running DomU image(Ubuntu 10.10) on Dom0(Ubuntu 10.10) shows the following error:

mount: mounting none on /dev failed: No such device

W: devtmpfs not available, falling back to tmpfs for /dev

Begin: Loading essential drivers ... done.

Begin: Running /scripts/init-premount ... done.

Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.

Gave up waiting for root device.  Common problems:

 - Boot args (cat /proc/cmdline)

   - Check rootdelay= (did the system wait long enough?)

   - Check root= (did the system wait for the right device?)

 - Missing modules (cat /proc/modules; ls /dev)

ALERT!  /dev/sda2 does not exist.  Dropping to a shell!

BusyBox v1.15.3 (Ubuntu 1:1.15.3-1ubuntu5) built-in shell (ash)

Enter 'help' for a list of built-in commands.

(initramfs) 

ls /dev, shows no sda module loaded. I tried with xvda as well but it also shows the same error. Here is my configuration file for DomU:

kernel = '/boot/vmlinuz-2.6.32.27'

ramdisk = '/boot/initrd-2.6.32.27.img'

vcpus       = '1'

memory      = '512'

root        = '/dev/sda2 ro'

disk        = [

                  'file:/home/hkhande/xen-image/domains/cloud-vm06/disk.img,sda2,w',

                  'file:/home/hkhande/xen-image/domains/cloud-vm06/swap.img,sda1,w',

              ]

name        = 'cloud-vm06'

vif         = [ 'ip=128.10.130.191,mac=00:16:3E:FC:B1:FD,bridge=eth2' ]

>

on_reboot   = 'restart'

on_crash    = 'restart'

extra = 'xencons=hvc'

Everything works fine with pygrub, but I need to use Dom0 xenified kernel only. I also modified /etc/initramfs-tools/modules in Dom0 to include scsi_mod, sd_mod, blkbk modules, followed by update-initramfs.

Steps followed to create DomU image: http://www.virtuatopia.com/index.php/Building_a_Debian_or_Ubuntu_Xen_Guest_Root_Filesystem_using_debootstrap

Thanks,

Hitesh

Hitesh Khandelwal | Graduate Student | Purdue University | http://www.hiteshkhandelwal.com

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users