Hi Todd,

Thanks for the message. I got a little bit further but still no joy, its stops with the following messages. Is it better off installing Ubuntu in the image?

mount: could not find filesystem '/dev/root' Setting up other filesystems. Setting up new root fs setuproot: moving /dev failed: No such file or directory no fstab.sys, mounting internal defaults setuproot: error mounting /proc: No such file or directory setuproot: error mounting /sys: No such file or directory Switching to new root and running init. unmounting old /dev unmounting old /proc unmounting old /sys switchroot: mount failed: No such file or directory Kernel panic - not syncing: Attempted to kill init! [root@sphere auto]#

On Wed, Jan 7, 2009 at 2:58 PM, Todd Deshane deshantm@gmail.com wrote:

On Tue, Jan 6, 2009 at 9:21 PM, Devraj Mukherjee devraj@gmail.com wrote:

...

Hello all,

I am trying to get an Ubuntu 8.04 image running on my CentOS 5.2 Dom0 which so far has only been running CentOS 5.2 DomUs.

The image I am trying to run was fetched from jailtime.org (just so I didn't have to go through building an image for myself).

The configuration of the DomU is based on what the guys at jailtime.org provided and its as follows

name = "redgum" kernel = "/boot/vmlinuz-2.6.18-92.1.22.el5xen" memory = "1024" disk = ['file:/srv/xen/redgum.img,sda1,w'] root = "/dev/sda1 ro" vif = [ 'bridge=xenbr0', ] vcpus=4 on_reboot = 'restart' on_crash = 'restart'

When I start the VM I get the following message

VFS: Cannot open root device "sda1" 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)

As per my configuration I have mounted the image to sda1 and the root is specified for the Kernel. Any one with similar experiences or could point me to the right direction?

adding a ramdisk= line to your domU config should help.

Also it is a good idea to also copy /lib/modules/<xen kernel> to the guest's /lib/modules.

Cheers, Todd

-- Todd Deshane http://todddeshane.net http://runningxen.com _______________________________________________ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt

Hi Todd / all,

Thanks again for responding to me. Interestingly the screen dump of virt-install on that howto is different from mine. Mine actually doesn't ask about fully virtualized guests.

How can I start virt-install to boot from an ISO?

Thanks.

On Wed, Jan 7, 2009 at 4:52 PM, Todd Deshane deshantm@gmail.com wrote:

On Wed, Jan 7, 2009 at 12:41 AM, Devraj Mukherjee devraj@gmail.com wrote:

...

Hi Todd,

Thanks for the message. I got a little bit further but still no joy, its stops with the following messages. Is it better off installing Ubuntu in the image?

Boris has a bunch of howtos on this sort of thing...

Here is one for Ubuntu on CentOS 5.2: http://bderzhavets.wordpress.com/2008/10/28/install-ubuntu-intrepid-server-p...

I am pretty sure that problem below is still fixable, but the hour is late, so I remember the solution... Google and/or xen.markmail.org may have some hints for you...

Best of Luck.

Todd

...

mount: could not find filesystem '/dev/root' Setting up other filesystems. Setting up new root fs setuproot: moving /dev failed: No such file or directory no fstab.sys, mounting internal defaults setuproot: error mounting /proc: No such file or directory setuproot: error mounting /sys: No such file or directory Switching to new root and running init. unmounting old /dev unmounting old /proc unmounting old /sys switchroot: mount failed: No such file or directory Kernel panic - not syncing: Attempted to kill init! [root@sphere auto]#

-- Todd Deshane http://todddeshane.net http://runningxen.com