[libvirt-users] Libvirt Error guest wont start

[Martin Kletzander]

On 10/10/2012 04:47 PM, Shawn Furrow wrote:
> I am using QEMU 1.1.0, the latest libvirt (from the git repo, but I've
> also tried release 0.10.0). Host os is Ubuntu 10.04 and the VM os is
> also 10.04.
> 
> I am getting the qemu version from qemu-system-x86_64 --version so I
> know its the one that is recognized from path.
> 

Could you check 'virsh dumpxml guest0 | grep emulator' and check what's
the qemu being ran by libvirt?  Then take that path and run it with
'<binary> -M ?' and check if the 'pc-1.1' is there.  To fix your issue,
try 'virsh edit guest0' and change the 'pc-1.1' to 'pc'.

> As far as I know, no other versions have been installed on the host machine.
> 
> Shawn
> 
> On Wed, Oct 10, 2012 at 10:25 AM, Kashyap Chamarthy <kchamart at redhat.com
> <mailto:kchamart at redhat.com>> wrote:
> 
>     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
>     >
>     >
>     >
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>     >
> 
> 
>     --
>     /kashyap
> 
> 
> 
> 
> -- 
> Virginia Tech
> Bradley Department of Electrical and Computer Engineering
> B.S. Electrical Engineering
> B.S. Computer Engineering
> 
> 
> 
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