Re: [Users] booting a vm on a raw file disk definated in a hook script

On 05/25/2012 05:47 PM, Nathanaël Blanchet wrote: >Hi all, > >I'm using this hook script : >http://gerrit.ovirt.org/gitweb?p=vdsm.git;a=blob;f=vdsm_hooks/vmdisk/before_vm_start.py;h=191d5c1af533e11d699b1d715d3c1ea60e28b787;hb=6817f1c6e3f5bc137d1f3bef45a2d0191465c7a3 >My goal is to boot a vm on a vm image imported form libvirt/kvm. I want >to use this single image, that is to say without importing it into ovirt >with tools like v2v. >acathrow told me on irc that I'd have to change the boot order in the >xml, but I don't know how to proceed for many reasons: > > * I can't create a vm through the UI which would boot on the disk > created by the hook script without first creating a disk on the > relevant storage domain. If I try I have those warnings : > > hook: Cannot run VM without at least one bootable disk. > Alternatives: > -Create a disk for this VM, and rerun the VM. > -Change the boot sequence using the Edit VM command (Boot Option > Sub-Tab). > -Use the Run-Once command to select a different boot option and > rerun the VM. > * If I run a vm with the first disk from the storage domain and an > additional disk from the hook script, how could I change the boot > order in the xml definition file if I don't know the xml definition > of the main disk? > > >thanks all for your help 1. i guess you can change the script to fix the boot order. 2. you can create a VM with a disk the same size, and just copy your converted disk over it (cp for nfs, dd for iscsi), instead of using the hook.