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Re: [Xen-users] grep: /proc/xen/capabilities: No such file or directory

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Andreas Sommer <AndiDog@xxxxxx>
  • Date: Sat, 18 Jul 2009 21:57:35 +0100
  • Delivery-date: Sat, 18 Jul 2009 13:59:09 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Okay I found the solution :-)

The kernel must be configured to create the compatibility mount point /proc/xen. And the following line must be added to /etc/fstab:

xenfs /proc/xen xenfs defaults 0 0

Hope this might help somebody else...

Andreas Sommer wrote:
It seems like many Xen source files still rely on the /proc/xen file system. Thus changing or removing that check in /etc/init.d/xend does not make a difference - xend won't start because it apparently needs stuff from /proc/xen ("Could not obtain handle on privileged command interface (2 = No such file or directory)" and similar errors).

So, are the current Xen-unstable and the 2.6.30-rc6-tip kernel compatible (or yet usable) at all?

Stefan Kuhne wrote:
Andreas Sommer schrieb:

So when I boot into Xen with 2.6.30-rc6-tip, everything works fine but
xend is not running. Trying to start it ("/etc/init.d/xend restart")
throws an error "grep: /proc/xen/capabilities: No such file or
directory". The directory "/proc/xen" is actually there, but empty. I
had the same problems with installing Xen-3.4-testing only a few days ago.

This worgs with all Dom0 kernel:
if ! grep -q "xen" /sys/hypervisor/type

Stefan Kuhne

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