[Xen-users] Problems with Dell 2850

[Luke <secureboot@xxxxxxxxx>]

When I try to boot a custom-compiled kernel on a dell 2850, with the  
4e/di raid controller, i get an error similar to the one found here:
http://www.option-c.com/xwiki/ 
Xen_Errors#Kernel_panic:_VFS:_Unable_to_mount_root_fs_on_unknown- 
block.282.2C0.29
about not finding an NFS server.

I'm assuming this is because the Xen kernel can't mount the root  
filesystem for some reason (its ext3).
In the kernel, pulled via mercurial of xen-3.0-testing, all i did was  
enable as modules some iptables stuff, and all the  megaraid options  
as modules.
I've also done the same thing with unstable.



This is a bit odd, since I had 3.0 testing working about 2 weeks ago,  
and now, following what I thought was the exact same procedure, i  
can't get Xen to boot.  The /boot/grub/menu.lst entry is the same as  
I was using before, and contains the same root=/dev/sda1 option that  
the Debian-installed kernels do...
title           Xen-smp
root            (hd0,0)
kernel          /boot/xen.gz dom0_mem=128000
module          /boot/vmlinuz-2.6-xen0 root=/dev/sda1 ro
savedefault
boot

any ideas what the problem could be?  The debian 2.4 kernels (they  
have the megaraid2 driver) work just fine.
What other information is necessary?

--
Luke

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