[Bug 494479] [NEW] kernels are no longer provided in a form bootable by Xen (when running an 8.04 LTS Dom0)

Ralf Hildebrandt Ralf.Hildebrandt at charite.de
Wed Dec 9 12:45:15 UTC 2009


Public bug reported:

I'm running karmic as a DomU guest on a host that still runs 8.04 LTS as
Dom0.

It turns out that the 8.04 LTS Dom0 cannot start any of the kernels
provided by the new linux-image-virtual packages, since those come with
bzImage kernels only:

# dpkg -l |egrep "(linux-image|xen)"
ii  linux-image-2.6.31-16-virtual      2.6.31-16.52                      Linux kernel image for version 2.6.31 on x86
ii  linux-image-virtual                2.6.31.16.29                      Linux kernel image for virtual machines

# file /boot/vmlinuz-2.6.31-16-server
/boot/vmlinuz-2.6.31-16-server: Linux kernel x86 boot executable bzImage, version 2.6.31-16-server (buildd at yellow, RO-rootFS, root_dev 0x801, swap_dev 0x3, Normal VGA

This is not bootable - I had to rebuild a kernel according to the docs described on:
http://wiki.xensource.com/xenwiki/Kernel.org_Linux_on_Xen

Solution:

* Provide an additional vmlinux or stripped & gzipped vmlinuz...
* Provide a way of converting /boot/vmlinuz-2.6.31-16-server into a vmlinux or stripped & gzipped vmlinuz file


which says:

"A bzImage will be generated, which you can use if you want to boot this
kernel directly on the host system. You can not use the bzImage to boot
the kernel under Xen as it is not currently a supported format for the
Xen tools. Instead, you need to use the vmlinux image, which should be
in the root of your kernel tree."

The Dom0 is running:
* linux-image-2.6.24-26-xen
* xen-utils-3.2
* xen-hypervisor-3.2

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

-- 
kernels are no longer provided in a form bootable by Xen (when running an 8.04 LTS Dom0)
https://bugs.launchpad.net/bugs/494479
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