[libvirt-users] Way for a VM to reboot from a snapshot?

[Ken Coar]

On 05/10/2013 11:47 AM, Ken Coar wrote:
> Using the koan command, a VM can essentially request
> that it be reprovisioned.

That's the

 koan --server=${COBBLERHOST} --replace-self --system=$(hostname -f)

command run on the guest.  Frobs the grub.conf to re-kickstart.

> Is there any way for a VM to request that it reboot from
> a snapshot taken with virsh?

Apparently the answer to this is 'no'.  However, it seems as
though I might be able to ask the host's libvirtd to do it --
if the guest can find out who its host is.

I see (with some help from IRC) that the VM's libvirtd UUID
appears in the output of dmidecode, but I see no way to
relate that to a particular host IPA (IP Address) or FQDN for
the host.

How can a guest find out who its host is?

Thanks!
-- 
#ken	B-)}

Ken Coar, RHCE, RHCSA, Sanagendamgagwedweinini
IT Engineering Tower, Red Hat/RDU

"Millennium hand and shrimp!"

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