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Re: [Xen-users] how to use prebuilt images from jailtime.org?

To: Rudi Ahlers <Rudi@xxxxxxxxxxx>
Subject: Re: [Xen-users] how to use prebuilt images from jailtime.org?
From: Sadique Puthen <sputhenp@xxxxxxxxxx>
Date: Mon, 03 Mar 2008 16:01:12 +0530
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Rudi Ahlers wrote:
Hi

Does anyone know how to use the images from http://www.jailtime.org/? I've downloaded the CentOS 5.1 (http://www.jailtime.org/download:centos:v5.1) to my CentOS 5.1 x64 Xen 3.1 server, and unpacked it to my /home folder.

Then I took the included config file, centos.5-1.xen3.cfg and copied it to /xen - and modified to my needs:

[root@gimbli home]# more /etc/xen/centos5-1
kernel = "/boot/vmlinuz-2.6.18-53.1.13.el5xen"
memory = 256
name = "centos5-1"
vif = [ '' ]
dhcp = "dhcp"
#disk = ['file:/home/vm/centos.5-1.img,sda1,w', 'file:/home/centos.swap,sda2,w']
#root = "/dev/xvda1 ro"

disk = [ "tap:aio:/home/vm/centos.5-1.img,xvda,w" ]
root = "/dev/xvda ro"

Probably you need a initrd image built using --with=xennet --preload=xenblk and specify that as ramdisk= in the guest configuration file and change the /etc/fstab references in your image to xvda after loopback mounting that in dom0.

--Sadique

Yet, when I try and use it, I get the following error:
VFS: Cannot open root device "xvda" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)


Any ideas on how to get these images to work?



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