Re: [Xen-users] Problem launching VM

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2013-04-24 at 12:06 +0100, Jonathan Gowar wrote:
> Ian, thank you too.  That certain seems to be the problem, but I can't
> work the solution.  I added allow_unsafe to default/grub and updated:
> 
> # cat /proc/cmdline 
> placeholder root=UUID=3ecb462b-f87c-49a6-9a56-1af61990c40a ro
> allow_unsafe

It needs to be added to the hypervisor command line, not the dom0 kernel
command line which you have here.

That's GRUB_CMDLINE_XEN in /etc/default/grub on Debian at least.

> 
> Still the same error though.  Here are some parts from xm dmesg:
> 
> (XEN) *** Xen will not allow creation of DomU-s on this CPU for security 
> reasons. ***
> (XEN) *** Pass "allow_unsafe" if you\047re trusting all your (PV) guest 
> kernels. ***

Ian.


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