Created attachment 1165200 [details]
vmdisk hook script with boot support

Description of problem:
Now it is impossible to boot from disks, attached using vmdisk hook.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Attach disk image to VM using vmdisk hook
2. Install OS into attached disk image
3. Try to book from the disk image

Actual results:
VM cannot find boot device.

Expected results:
VM successfully boots to installed OS.

Additional info:
Boot support for vmdisk attached images can be achieved by adding following code into createDiskElement():

    boot = domxml.createElement('boot')
    # find unused boot order number
    bootorders = []
    for b in xmldisks:
        bootorders.append(d.getElementsByTagName('boot')[0].getAttribute('order'))

    for i in range(1, 28):
        if not str(i) in bootorders:
            boot.setAttribute('order', str(i))
            break

    disk.appendChild(boot)