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[Xen-users] Newbie Xen + LVM issues for Debian DomU on Centos 5.2 DomO

To: <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] Newbie Xen + LVM issues for Debian DomU on Centos 5.2 DomO
From: M C <m_c_001@xxxxxxxxxxx>
Date: 2008年12月23日 10:54:26 +0000
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Hi,

I'm trying to install a Debian 4.0 DomU on a Centos 5.2 DomO but I'm having problems. Using the Debian image from jailtime.org with the following config file:

kernel = "/boot/vmlinuz-2.6.18-92.1.22.el5xen"
memory = 1024
name = "debian.4-0.64"
vif = [ '' ]
disk = ['file:/srv/xen/debian.4-0.64.img,sdb1,w',]
vcpus=1


root = "/dev/sdb1 ro"

I end up with the following errors on trying to start up the image:

attempt to access beyond end of device
ram0: rw=0, want=18446744056529682440, limit=32768
isofs_fill_super: bread failed, dev=ram0, iso_blknum=17, block=-2147483648
No filesystem could mount root, tried: ext2 iso9660
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)

Here's what's set up on the host machine:

root% df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
143G 22G 114G 17% /
/dev/sdb1 99M 36M 59M 38% /boot
tmpfs 1.2G 0 1.2G 0% /dev/shm

I should say that I have a guest Centos DomU running just fine on this DomO, but it's the Debian image that's giving me fun and games. This is the (autogenerated) config file that works for the Centos DomU:

name = "vmserver"
memory = "1024"
disk = [ 'tap:aio:/srv/xen/vmserver.img,xvda,w', ]
vif = [ 'bridge=xenbr0', ]
bootloader="/usr/bin/pygrub"
vcpus=1



Any clues on how I can get the Debian image to work would be much appreciated!

m


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