Migrating from IDE to VIRTIO disk for existing disk
For migrating existing disk devices from IDE to VIRTIO, after changing xml file from hda to vda as below guest OS (RHEL5) is not booting, getting as "No VolGroups found" and kernel panic
<disk type='file' device='disk'> <source file='/var/lib/libvirt/images/disk1.img'/> <target dev='vda' bus='virtio'/> </disk>
Virtualization: KVM
Guest OS: RHEL5 disk configured with LVM
Host OS: RHEL 6.3