[gentoo-user] Re: [OT] Problems with libvirt / qemu

[walt <w41ter@gmail.com>]

On 10/10/2010 07:05 AM, Dan Johansson wrote:
> I know this is of topic, but this is one of the few lists where you mostly get a competent answer.
>
> I have a small problem with libvirt / qemu. I have created a guest (also gentoo) on a gentoo hosts and when I start it from the command-line the guests starts OK, but when I start the guest through libvirt with "virsh start" I get "Booting from Hard Disk...
> Boot failed: not a bootable disk
> No bootable device"
>
> This is the command-line I use to start the guest (which works)
> "cd /var/lib/kvm/Wilmer;  /usr/bin/qemu-system-x86_64 --enable-kvm \
>          -net nic,vlan=1,model=rtl8139,macaddr=DE:ED:BE:EF:01:03 -net tap,vlan=1,ifname=qtap13,script=no,downscript=no \
>          -net nic,vlan=3,model=rtl8139,macaddr=DE:ED:BE:EF:03:03 -net tap,vlan=3,ifname=qtap33,script=no,downscript=no \
>          -m 2048 -k de-ch -vnc :3 -daemonize \
>          Wilmer.qcow2"
>
>
> The libvirt XML-file was created using "virsh domxml-from-native qemu-argv" and this is the result of that conversion:

>      <boot dev='hd'/>

You obviously know more about libvirt than I do, but I'm wondering about
that 'hd'.  qemu knows enough to interpret Wilmer.qcow2 as the boot disk,
but maybe libvirt isn't that smart.

I'd maybe try using an explicit '-hda Wilmer.qcow2' in your original script
so virsh doesn't need to assume anything while converting it.

Fingers crossed :)