This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-users] Re: kexec into xen

Hi Mark,

thanks for your information.

Mark Williamson wrote:
I have a question: Is it possible to kexec into a xen vmm from a non-xen
kernel? In my vision it would be interesting to boot from a generic
linux installer, then analyze the hardware and boot into a suitable xen
kernel, that loads a dom0 linux kernel.

Yes, that should be doable. Tim Deegan wrote a patch that allowed kexec to boot multiboot images like Xen. I believe it's been in the upstream kexec tools for quite a while. You specify Xen as the kernel, followed by XenLinux as a module and (optionally) an initrd (as another module).

That sounds very interesting.

Do you know anybody interested in this?

What sort of applications were you thinking of? Selecting between 32-bit, PAE and 64-bit perhaps?

I am trying to build a cheap xen cluster. And I thought of booting various computers using a generic bootable image (.e.g live-cd) and then prepare the network environment and boot into a xen vmm form the existing system. This allows us to deploy updates on the shared storage (e.g. nfs) without adding the need to update the cd-roms.

-- Jakob

Xen-users mailing list