Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a physical server running Debian 6 and Xen Hypervisor 3.2.1, and kernal -a says "2.6.26-1-xen-amd64". I have not updated for a long time, because when I run apt-get upgrade, one of the updates is linux-image-2.6-amd64. My understanding was that my kernel needs to have Xen support, will upgrading to this kernel break my dom0?

I have myself up against a wall, because I host a VM for a website that isn't mine, so I need the latest security updates, but can't risk taking them offline. Eventually they will move off, and I won't be hosting something I am unqualified to host, but that isn't the point right now.

share|improve this question
Please post your kernel- and initrd-lines of your current grub configuration for your Dom0. – Nils Jul 15 '12 at 21:31
@Nils - I'm not sure what you mean. – mitnosirrag Jul 18 '12 at 5:02
I do not know about Debian 6, but on SLES grub is the bootloader. If you look into the configuration, you will see that xen is loaded instead of the usual kernel, and the usual kernel is passed as parameter to xen. So the kernel-version might be independent from your xen-version. – Nils Jul 18 '12 at 15:36
I know I am using GRUB, but I guess it is configured quite differently from SLES. Running uname -a I get "Linux 2.6.26-1-xen-amd64 #1 SMP Fri Mar 13 21:39:38 UTC 2009 x86_64 GNU/Linux". – mitnosirrag Jul 18 '12 at 18:50

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.