On Sat, Aug 07, 2010 at 05:31:16PM +0200, Martin Kraus wrote: > On Tue, Aug 03, 2010 at 08:58:59AM +0300, Gleb Natapov wrote: > > On Mon, Aug 02, 2010 at 09:05:48PM +0200, Martin Kraus wrote: > > > Hi. I've been wondering why grub can boot from a virtio device but can't see > > > virtio devices. I wanted to have a generic disk which would have a bios > > > partition with grub modules and this would include grub.cfg from a second disk. > > > I could use this image to boot all my virtual linux machines without the need > > > to have a partition on a logical volume. This way I have a separate virtio > > > boot lv with partitions and it works fine. It just doesn't seem as nice and I'm > > > curious if there is a way to get it to work, meaning if for example using efi > > > or some other kind of bios for qemu or grub module would help it. > > > > > What is your qemu version and qemu command line? > > debian squeeze 0.12.4 > > kvm -cpu host -drive file=/dev/mapper/virtual-ctech_boot,boot=on,if=virtio,cache=none -drive > file=/dev/mapper/virtual-ctech,if=virtio,cache=none > > virtual-ctech_boot is partitioned and mounts as "/boot" in the virtual guest and virtual-ctech is not > partitioned and is mounted as "/". > > This works fine but grub sees only the virtual-ctech_boot from which it is > booting. From that I see it is possible to access virtio devices at boot time but > somehow the bootdisk is different from the other disk. > > I have to set if=ide for virtual-ctech for grub to be able to see it. > Can you try to use latest seabios and see if it changes something? You can get seabios here git://git.linuxtogo.org/home/kevin/seabios.gi To tell qemu to use specific bios image use -bios flag. > Is it possible to see all the virtio disks in grub or am I just out of luck? > > thanks > mk -- Gleb. -- 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
