On Sun, 24 Jul 2011 09:30:49 +0300 Gleb Natapov <g...@redhat.com> wrote:
> On Fri, Jul 22, 2011 at 09:51:16AM +0900, Minoru Usui wrote: > > Hi, everyone > > > > I'm in trouble about boot order of VM. > > If anyone know cause of this problem, please let me know. > > > The cause of the "problem" is the design. booindex and -boot only > modifies the order in which bios will search for bootable device. > It does not exclude devices from a boot device list. > > > On following environment, I tried to boot from IDE CD-ROM device > > without inserting any bootable media, which is expected to fail, > > but VM was booting up from virtio HDD which was not specified as bootable > > device. > > > > * host : RHEL6.1(x86_64) > > guest: RHEL6.1(x86_64) > > * VM has IDE CD-ROM and virtio HDD. > > * There is no bootable media in IDE CD-ROM. > > * RHEL6.1 is installed in virtio HDD > > * Only IDE CD-ROM was spcified as bootable device. > > * XML configuration of libvirt is below. > > I tested <boot dev> and <boot order> setting, > > but both are booting up from virtio HDD. > > ------------------------------------------------------- > > [<boot dev> setting version] > > <os> > > <type arch='x86_64' machine='rhel6.1.0'>hvm</type> > > <boot dev='cdrom'/> > > <bootmenu enable='no'/> > > </os> > > > > [<boot order> setting version] > > <disk type='file' device='cdrom'> > > <driver name='qemu' type='raw'/> > > <target dev='hdc' bus='ide'/> > > <boot order='1'/> > > <readonly/> > > <address type='drive' controller='0' bus='1' unit='0'/> > > </disk> > > ------------------------------------------------------- I tested another one about <boot order> case on RHEL6.1, and I also faced another problem. VM has two virtio HDD. HDD1 is installed RHEL6.1, HDD2 is empty. I specified boot order to HDD1:1, HDD2:2, VM booted up from HDD1, but boot order HDD1:2, HDD2:1 case, VM couldn't boot up from HDD2. (It searched CD-ROM, NIC(gPXE), and finally stopped booting.) It seems seabios searches only 1 device per device list(HDD, CD-ROM, NET, FLOPPY). Is it true? <boot order> can specify per device, so shouldn't seabios search all device, even if it specifies multiple device per device list? -- Minoru Usui <u...@mxm.nes.nec.co.jp>
