Xen users - Oct 2006 - USB drive: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8, 1)

I have several xen domu''s running in LVM partitions on the local hard
drive. I have added a USB drive and tried to boot a domu from it but
it failed. I assumed it was a SCSI device name conflict so I created
a LVM on the USB drive but there is still a kernel panic:

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1)

My config:

      1 name = "samba"
      2 kernel = "/boot/xen-linux-2.6.12.6-xen"
      3 root = "/dev/sda1 ro"
      4 memory = 128
      5 disk = 
[
''phy:/dev/mapper/vgusb-guest.samba,sda1,w'',''phy:/dev/mapper/vgusb-guest.samba.swap,sda2,w''
]
      6 vif = [ ''bridge=xenbr0'',
''bridge=xenbr1'' ]
      7 extra = "3"

What can I do to get a domu running from a USB drive?

I can indeed mount /dev/mapper/vgusb-guest.samba manually.

The internal hard drives are two SCSI software mirrored RAID1.

David



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