Re: [Xen-users] can't boot from cdrom

["Todd Deshane" <deshantm@xxxxxxxxx>]

On Jan 28, 2008 10:41 AM, 余上 <yusunn@xxxxxxxxx> wrote:

Hi All,

Following is my winxp hvm config:

kernel = "/usr/lib/xen/boot/hvmloader"
builder = 'hvm'
memory = 192
name = "winxp"
vcpus = 2
disk = [ 'file:/media/sda6/usr/xenimgs/winxp.img,ioemu:hda,w' ]
device_model = '/usr/lib/xen/bin/qemu-dm.debug'
cdrom='/dev/hda'
sdl=1
boot='d'

and following is the boot message:
...
Booting from CD-Rom...
CDROM boot failure code : 0002
Boot from CD-Rom failed: could not read the boot disk
FATAL: No bootable device.

I have checked /dev/hda , it does exist , any idea ?

You need to modify your disk line to something similar to either:

disk = ['file:/media/sda6/usr/xenimgs/winxp.img,ioemu:hda,w,'tap:aio:/root/winxp.iso,hdc:cdrom,r']

OR

disk = ['file:/media/sda6/usr/xenimgs/winxp.img,ioemu:hda,w,'phy:/dev/cdrom,hdc:cdrom,r']
 
notice the cdrom device that was added to each. The first example is for a cdrom image, the second example if for a physical cdrom

changing file: to tap:aio is also recommended too, as file: is being (or was) deprecated.

Regards,
Todd

Thank you very much
yushang

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