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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html