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@xxxxxxxxxx> wrote: > > > (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. Yes I have to agree with Emre here - I don't think it's as simple as just rebuilding mkinitrd. I got that far but gave up later on. /me checks notes ... Yup, I got as far as working out that you would have to edit fstab and possibly /boot/grub/device.map and /boot/grub/menu.lst, before giving up. If anyone would like to fill in the wiki page here on the subject: http://wiki.libvirt.org/page/Virtio I'd like to reiterate that _none_ of this complexity is required when installing a new guest. Anaconda sets up everything for you. Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://et.redhat.com/~rjones/virt-df/ -- Fedora-xen mailing list Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen
