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Re: [Xen-users] Re: Xen 4.0.1 on Ubuntu Lucid 10.04 - Desktop / Server -

To: Priya <pbhat@xxxxxxxxxxxx>, hurenkam <hurenkam@xxxxxxxxx>
Subject: Re: [Xen-users] Re: Xen 4.0.1 on Ubuntu Lucid 10.04 - Desktop / Server - 64 Bits - With OpenGL (Intel GEM) enabled - From Linuxcon Brazil! :-D
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Date: Thu, 16 Sep 2010 07:25:21 -0700 (PDT)
Cc: nunziaG84@xxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx, Pasi Kärkkäinen <pasik@xxxxxx>
Delivery-date: Thu, 16 Sep 2010 07:26:41 -0700
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One more time. Please, submit :-
# ls -l  /dev/xen


--- On Thu, 9/16/10, hurenkam <hurenkam@xxxxxxxxx> wrote:

From: hurenkam <hurenkam@xxxxxxxxx>
Subject: Re: [Xen-users] Re: Xen 4.0.1 on Ubuntu Lucid 10.04 - Desktop / Server - 64 Bits - With OpenGL (Intel GEM) enabled - From Linuxcon Brazil! :-D
To: "Priya" <pbhat@xxxxxxxxxxxx>
Cc: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>, nunziaG84@xxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx, "Pasi Kärkkäinen" <pasik@xxxxxx>
Date: Thursday, September 16, 2010, 10:17 AM


> And then when I reboot the machine, xend does not start. On issuing
> the command /etc/init.d/xend start, or status, there is no terminal
> output.
> When I type in "xend start" directly, I get the following error
> message:
>  sudo xend start
>> the output is:
>> ERROR Internal error: Could not obtain handle on privileged command
> interface

Do you have xenfs mounted?
see if the following line comes up in the list if you type mount:

# mount
xenfs on /proc/xen type xenfs (rw)

If not, then you can try mounting it manually. If xenfs is compiled as
a module, you may have to modprobe it first. If it is not enabled in
kernel, then you have to rebuild your dom0 kernel, and enable it.

On my (Ubuntu Server 10.04.1 based) system, this gets mounted
by either udev or xend itself (it is not in fstab).

In my experience on this system, xend fails ususually due to one of the
following reasons:
1) Failure to mount xenfs (because it is not configured, or the module
not loaded).
2) Inconsistent installation of xentools (in wrong python directory or
mixed with older version).


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