Re: [Xen-users] Ubuntu guest domain on Fedora host (dom0) domain

[Julius Spencer <jspencer@xxxxxxxxxxxxxxxxxxx>]

Thank you for the reply.

I'm trying to install Ubuntu server as a guest on a Fedora host domain

(dom0).

I don't understand the functions of the guest's initrd and the guest's

kernel well enough to know which kernel I should be using. Should I use

the Fedora based domU kernel (which matches the dom0 one) or Ubuntu's

kernel?

If I install using debootstrap would I need to swap out the kernel

provided with an Ubuntu one which has been xenified?

Not neccessarily, if your fine with the fedora kernel, just copy

dom0's /lib/modules/`uname -r` into the domU image.

I tried this first (using the fedora kernels and got this:

...

device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised:

dm-devel@xxxxxxxxxx

md: md1 stopped.

Kernel panic - not syncing: Attempted to kill init!

Does this mean it is trying to find the disk but can't find it?

I assume Ubuntu would run on fedora kernel. If you want to keep your domU

distro "clean", then I would suggest to

- copy domU's kernel and initrd at some place in dom0

then I tried using an ubuntu xen kernel (putting it in the /boot dir of

the dom0 and chaging my config file) and got this:

...

[45911.512633] blkfront: sda1: barriers enabled

[45911.518792] netfront: device eth0 has copying receive path.

[45911.608257] Freeing unused kernel memory: 200k freed

[45911.810711] AppArmor: AppArmor initialized<5>audit(1197876779.830:2): 

type=1505 info="AppArmor initialized" pid=990

[45911.818980] fuse init (API version 7.8)

[45911.825888] Failure registering capabilities with primary security module.

[45911.860654] thermal: Unknown symbol acpi_processor_set_thermal_limit

[45911.876324] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12)

initialised: dm-devel@xxxxxxxxxx

At this stage it just stops. I have to use Ctrl ] to get out of the

console. I'm not sure what would come next, but nothing happens.

or

- keep it in domU and use pygrub

I'm not sure how to do this yet so I haven't atempted it.

If you decide to use the recent ubuntu -xen kernel, disable the hwclock*

init scripts in domU and add

extra = 'xencons=tty'

to your domU cfg file, as the ubuntu kernel defaults to xvc0.

Regards,

Julius.

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