[xen-tools] Question: Howto update the kernel for a domU image

[Peter Baumann]

First, let me thank you for your nice xen-tools, which is a very
efficient way to create a domU.

But as I see it, there is no efficent way to upgrade the kernel used in
the domU, or do I miss something? I changed in the generated xen cfg
file the kernel and initrd statement to something like this:

kernel  = '/boot/vmlinuz-hofmann-domU-latest'
ramdisk = '/boot/initrd-hofmann-domU-latest'

and both files are symlinks pointed to the newest debian kernel images:

ho140:/boot ls -al|grep hof
lrwxrwxrwx  1 root root      29 2007-02-28 10:17 initrd-hofmann-domU-latest -> initrd.img-2.6.18-4-xen-amd64
lrwxrwxrwx  1 root root      26 2007-02-28 10:17 vmlinuz-hofmann-domU-latest -> vmlinuz-2.6.18-4-xen-amd64

This works very well for updating the kernel. If debian ever releases a
new kernel with a new ABI, I only have to update the symlinks.

But now to my problem. Inside each domU image, there is a copy of
/lib/modules/2.6.18-4-xen-amd64, which is not updated with the kernel
image. Is there a elegant way to do this? Or wouldn't it be better to
have the whole kernel inside the domU, so the whole problem goes away?

-Peter