[Xen-users] Exporting LVM device to domU

[Maxim Rozin <maxim@xxxxxxxxxxxxxxxxxx>]



Hi there,

I'm using xen-3.0.2.2-86.1_rhel4.1 on a Redhat AS 4 update 1 for i386.
When I create a new domU with the following conf file, everything is ok:
##BEGINNING##
kernel = "/boot/vmlinuz-2.6.16-xen3_86.1_rhel4.1"
ramdisk = "/boot/initrd-2.6.16-xen3_86.1_rhel4.1.img"
builder='linux'
memory = 1024
name = "myvm"
vcpus = 8
vif = [ 'mac=00:16:3E:6C:54:FE, bridge=xenbr0' ]
disk = [ 'phy:vg02/lvol0,sda7,w' ]
disk = [ 'phy:sda6,sda6,w' ]
dhcp="dhcp"
hostname= "myvm"
root = "/dev/sda6 rw"
extra = "4"
##END##

However, when I change the order of the two "disk" statements ([
'phy:sda6,sda6,w' ] first and [ 'phy:vg02/lvol0,sda7,rw' ] second), and try to
create the new vm (xm create -c myvmconf), I get the usual output with this
error at the end:
##BEGINNING##
Loading ext3.ko module
Creating root device
Mounting root filesystem
mount: error 6 mounting ext3
mount: error 2 mounting none
Switching to new root
switchroot: mount failed: 22
umount /initrd/dev failed: 2
Kernel panic - not syncing: Attempted to kill init!
##END##

Any ideas why it's happening?
Maxim.

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