On Wed, Jan 21, 2009 at 03:06:43PM +0100, Emre Erenoglu wrote:
> On Wed, Jan 21, 2009 at 2:48 PM, Mark McLoughlin <markmc redhat com
> > (This is all getting offtopic for fedora-xen, we should really move to
> > fedora-virt)
> > On Wed, 2009-01-21 at 14:28 +0100, Jan ONDREJ (SAL) wrote:
> > > virtio_net works well, but I have trouble to boot from virtio_blk.
> > >
> > > I can add second disk as virto block device, but I can't boot from
> > > first disk.
> > When switching from IDE to virtio, you need to first build a new initrd
> > in the guest with e.g.:
> > $> mkinitrd --with virtio_pci --with virtio_blk -f
> > /boot/initrd-$(kernelversion) $(kernelversion)
> > You only need to do this once. After that, if a new kernel is installed
> > while you're booted off a virtio disk, then mkinitrd will include the
> > modules automatically.
> You will also need to specify /dev/vdX on the kernel root= line and make
> sure your init script inside your initrd triggers the virtio drivers at boot
> so that the /dev/vdX are created.