Re: [Xen-users] Install Ubuntu Server 10 as PV Guest

[KC LO <kclo2000@xxxxxxxxx>]

Hi all,

 

Thanks all!

I have copied kernel and ramdisk to the DOMU and it worked fine even the /boot is under partition of ext4.

However, the pygrub still fails for partition of ext3 with same error.

Below is my DOMU config

name = "test"
memory = "2048"
bootloader="/usr/bin/pygrub"
extra = "(hd0,0)/grub/menu.lst"
vif = [ 'bridge=eth0' ]
vcpus=2
disk= [ 'file:/root/iso/ubuntu.img,xvda,w' ]
root="/dev/xvda1 ro"
>>

When I replace with kernel and ramdisk, ubuntu can boot successfully.  Any ideas?

 

On 21 June 2010 09:47, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:

On Sun, Jun 20, 2010 at 2:59 PM, KC LO <kclo2000@xxxxxxxxx> wrote:
> RuntimeError: couldn't find bootloader config file in the image provided.

Quick check: did you happen to use ext4 for /boot? AFAIK pygrub (on
Xen 3.4 anyway) does not support ext4. ext3 works just fine.

>
> I have used kpartx -av /root/iso/ubuntu.img to mount the boot directory of

/root/iso is a strange place to put domU image :P

> It seems that it don't has the linux-xen kernel for PV client.  Is it the
> reason for it fail to boot?

It shouldn't matter. Ubuntu's has pv_ops enabled kernel. Also, if it
were a problem with kernel, you'd get a different error message.

As a temporary work around, you can try copying domU's kernel and
initrd to dom0, and load it on domU Xen config file using "kernel",
"ramdisk", and "extra" directive.

--
Fajar

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