Grub2 + Xen: How to solve "Can't find hypervisor information in sysfs"

Question

I am trying to solve the "Can't find hypervisor information in sysfs" problem when invoking "xm". I have found in some sites that the solution is to rename 10_linux into 50_linux, however if I do this, whenever I reboot my computer, the memtest starts (so I have to reset the previous grub configuration through a live cd). I am aware that it might be a silly question, but does anyone have a workaround?

Solution

I had the same problem. Googling around I came across this forum post. Initially I did the same as you renaming 10_linux to 50_linux, however first time around I forgot to:

[sudo] update-grub2

I sudo'd the command however not sure it's required. Now all is working.

Comments

[alk]

The official Debian (dpkg'ish way) is described here: xen-orchestra.com/cant-find-hypervisor-information-in-sysfs