Re: kvm-85: virtio-blk not working

[Brian Jackson <iggy@theiggy.com>]

Your problem is that index's are per interface type, so both of your drives 
should be index=0 since they are different interface types.



On Thursday 23 April 2009 03:43:03 Gerd v. Egidy wrote:
> Hi,
>
> I just tried to upgrade my kvm (from 79) to the new 85. I'm using qemu-kvm-
> devel with the kvm-modules (and kernel-includes) that came with 2.6.29.1.
>
> Qemu-blockdevices and virtio-net work well. But virtio blockdevices are not
> accessible from within the guest system. Neither can the BIOS boot from
> them ("Boot failed: could not read the boot disk") nor can the guest-kernel
> (2.6.29.1 too) see them.
>
> I am (or better libvirt is) starting the guest like this:
>
> /usr/bin/qemu-kvm -S -M pc -m 1024 -smp 1 -name test \
> -uuid 283d1332-c234-9f28-24cf-8bbcc17b44c1 -monitor pty \
> -pidfile /var/run/libvirt/qemu//test.pid -boot c \
> -drive file=/dev/VolGroup00/testboot,if=ide,index=0 \
> -drive file=/dev/VolGroup00/testvirt,if=virtio,index=1 \
> -net nic,macaddr=54:52:00:7c:a5:89,vlan=0,model=virtio \
> -net tap,fd=17,script=,vlan=0,ifname=vnet0 \
> -serial pty -parallel none -usb -vnc 127.0.0.1:0
>
> When booting the guest I get these messages in the host log, but don't know
> if they are related:
>
> kernel: kvm: 3082: cpu0 unhandled wrmsr: 0xc0010117 data 0
> kernel: kvm: 3082: cpu0 unhandled rdmsr: 0xc0010117
> kernel: kvm: 3082: cpu0 unhandled rdmsr: 0xc0010117
>
> They show up when not using virtio-blk too.
>
> Any ideas?
>
> Kind regards,
>
> Gerd
>
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