[Xen-devel] booting 2.6 - can't mount root

[James Harper <JamesH@xxxxxxxxxxxxxxxx>]

I have just attempted to boot domU with 2.6.7 (dom0 still 2.4.26), and I get this:

 

<snip>

Initializing Cryptographic API
Initialising Xen virtual block device
Using anticipatory io scheduler
Xen virtual console successfully installed as tty
Event-channel device installed.
Initialising Xen virtual ethernet frontend driver<6>NET: Registered protocol family 2
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
Bridge firewalling registered

<~5 second pause>
end_request: I/O error, dev sda1, sector 2
EXT3-fs: unable to read superblock
end_request: I/O error, dev sda1, sector 2
EXT2-fs: unable to read superblock
Kernel panic: VFS: Unable to mount root fs on sda1

the only change to my config is to substitute the 2.4.26 kernel with the 2.6.7 kernel. My disk line is:

 

disk = [ 'phy:vg00/sbssgw1,sda1,w' ]

also tried:

 

disk = [ 'phy:/dev/vg00/sbssgw1,/dev/sda1,w' ]

the code is checked out as of yesterday, EST.

 

any ideas what i've broken?

 

also, on boot I get bogomips readings from 900 to 100. Is there any problem with this?

 

thanks

 

James