[libvirt] how to change the boot order of a qemu-kvm guest os
Daniel P. Berrange
berrange at redhat.com
Thu Aug 27 17:34:21 UTC 2009
On Thu, Aug 27, 2009 at 10:24:18PM +0530, Gopalakrishnan Subramanian wrote:
> Hi
> I am using libvirt and virt-manager to manage and run 2 Fedora 10
> guest operating systems for the sake of installing a Oracle RAC
> environment . As part of the process after using the both gues for some
> work i felt the nedd to add an additional virtual scsi disk to one of the
> hosts.
> Trying to start the guest os after adding this scsi virtual disk to the
> host fails (see image) . The guest BIOS screen and all comes up fine but
> it now seems to be trying to boot from the newly added disk . Fiddling
> around with the order of the disks as listed in the xml has not helped
> either .
Yeah this is a bug in libvirt - its stupidly reordering disks itself.
I've got a patch that will be in the next libvirt release
http://www.redhat.com/archives/libvir-list/2009-August/msg00340.html
There's no real workaround before that other than make sure you only
use the same type of disk - eg always SCSI, or always VirtIO, but
never a mix of both.
Daniel
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