kayex:/# ls -l /dev/vg1/debian.zimbra*
lrwxrwxrwx 1 root root 29 2007-05-17 08:06 /dev/vg1/debian.zimbra -> /dev/mapper/vg1-debian.zimbra
lrwxrwxrwx 1 root root 35 2007-05-17 08:06 /dev/vg1/debian.zimbra-swap -> /dev/mapper/vg1-debian.zimbra--swap

kayex:/# cat /etc/xen/debian-zimbra 
#  -*- mode: python; -*-
kernel = "/boot/vmlinuz-2.6.18-4-xen-vserver-amd64" 
memory = 1024
name = "debian-zimbra"
disk = ['phy:/dev/vg1/debian.zimbra,ioemu:sda1,w','phy:/dev/vg1/debian.zimbra-swap,ioemu:sda2,w']
vif = ['bridge=xenbr0']
ip = "192.168.1.211"
netmask = "255.255.255.128"
gateway = "192.168.1.129"
hostname = "zimbra"
root = "/dev/sda1 ro"
extra = "4"


kayex:/# xm create debian-zimbra -c
Using config file "/etc/xen/debian-zimbra".
Started domain debian-zimbra
Bootdata ok (command line is  ip=192.168.1.211:1.2.3.4:192.168.1.129:255.255.255.128:zimbra:eth0:off root=/dev/sda1 ro 4)
Linux version 2.6.18-4-xen-vserver-amd64 (Debian 2.6.18.dfsg.1-12) (waldi@debian.org) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 SMP Mon Mar 26 12:49:59 CEST 2007
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000040800000 (usable)
No mptable found.
Built 1 zonelists.  Total pages: 264192
Kernel command line:  ip=192.168.1.211:1.2.3.4:192.168.1.129:255.255.255.128:zimbra:eth0:off root=/dev/sda1 ro 4
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 32768 bytes)
Xen reported: 1995.001 MHz processor.
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Software IO TLB disabled
Memory: 1022332k/1056768k available (2002k kernel code, 25608k reserved, 889k data, 148k init)
Calibrating delay using timer specific routine.. 4988.71 BogoMIPS (lpj=9977437)
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 256
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 4096K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
(SMP-)alternatives turned off
Brought up 1 CPUs
migration_cost=0
Grant table initialized
NET: Registered protocol family 16
Brought up 1 CPUs
PCI: setting up Xen PCI frontend stub
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI: disabled
xen_mem: Initialising balloon driver.
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: System does not support PCI
PCI: System does not support PCI
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 7, 524288 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
audit: initializing netlink socket (disabled)
audit(1179407086.815:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
rtc: IRQ 8 is not free.
Linux agpgart interface v0.101 (c) Dave Jones
RAMDISK driver initialized: 16 RAM disks of 65536K size 1024 blocksize
Xen virtual console successfully installed as tty1
Event-channel device installed.
netfront: Initialising virtual ethernet driver.
PNP: No PS/2 controller found. Probing ports directly.
i8042.c: No controller found.
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 8
NET: Registered protocol family 20
Registering block device major 8
netfront: device eth0 has flipping receive path.
No filesystem could mount root, tried:  cramfs
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1)