libvirt users - Oct 2012 - Libvirt Error guest wont start

Hi all,

I have been using Libvirt for several months now and I have only had
minimal problems. I had a particular setup and was starting up multiple
guests just fine. However, with seemingly no changes I now get the
following error when trying to start a guest:

virsh start guest0
error: Failed to start domain guest0
error: internal error Process exited while reading console log output:
Supported machines are:
pc         Standard PC (alias of pc-0.12)
pc-0.12    Standard PC (default)
pc-0.11    Standard PC, qemu 0.11
pc-0.10    Standard PC, qemu 0.10
isapc      ISA-only PC

Apparently, the machine argument settings were changed in recent versions
of Libvirt. Or at least that is what it seems. My guest's OS settings were:

<os>
    <type arch='x86_64' machine='pc-1.1'>hvm</type>
    <boot dev='hd'/>
</os>


After getting this error I tried setting the machine argument to one of the
"supported" ones. Then I get this error:

virsh start guest0
error: Failed to start domain guest0
error: Unable to read from monitor: Connection reset by peer

Anyone have any ideas as to why this happened all of a sudden? I was not
having any problems before.

Thanks,
Shawn

-- 
Virginia Tech
Bradley Department of Electrical and Computer Engineering
B.S. Electrical Engineering
B.S. Computer Engineering
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://listman.redhat.com/archives/libvirt-users/attachments/20121010/fb8ba91f/attachment.htm>

On 10/10/2012 07:22 PM, Shawn Furrow wrote:
> Hi all,
> 
> I have been using Libvirt for several months now and I have only had
minimal problems. I
> had a particular setup and was starting up multiple guests just fine.
However, with
> seemingly no changes I now get the following error when trying to start a
guest:
> 
> virsh start guest0
> error: Failed to start domain guest0
> error: internal error Process exited while reading console log output:
Supported machines are:
> pc         Standard PC (alias of pc-0.12)
> pc-0.12    Standard PC (default)
> pc-0.11    Standard PC, qemu 0.11
> pc-0.10    Standard PC, qemu 0.10
> isapc      ISA-only PC
> 
> Apparently, the machine argument settings were changed in recent versions
of Libvirt. Or
> at least that is what it seems. My guest's OS settings were:
> 
> <os>
>     <type arch='x86_64'
machine='pc-1.1'>hvm</type>
>     <boot dev='hd'/>
> </os>
> 
> 
> After getting this error I tried setting the machine argument to one of the
"supported"
> ones. Then I get this error:
> 
> virsh start guest0
> error: Failed to start domain guest0
> error: Unable to read from monitor: Connection reset by peer
> 
> Anyone have any ideas as to why this happened all of a sudden? I was not
having any
> problems before.
A couple of questions:
	- What libvirt version?
	- What OS/version?
	- What qemu-kvm version?

Can you reproduce the same issue with latest libvirt and qemu-kvm ? (that's
what I have on
my F18 machine -- libvirt-0.10.2-3.fc18.x86_64, qemu-kvm-1.2.0-11.fc18.x86_64) ?

That's the machine type I have.

# grep machine /etc/libvirt/qemu/f17jeos-3.xml
    <type arch='x86_64' machine='pc-1.2'>hvm</type>
>From the looks of it, I guess you have a fairly older versions of
qemu-kvm?(or whatever
your distro calls the binary as?)
> 
> Thanks,
> Shawn
> 
> -- 
> Virginia Tech
> Bradley Department of Electrical and Computer Engineering
> B.S. Electrical Engineering
> B.S. Computer Engineering
> 
> 
> 
> _______________________________________________
> libvirt-users mailing list
> libvirt-users at redhat.com
> https://www.redhat.com/mailman/listinfo/libvirt-users
> 

-- 
/kashyap