Re: [Users] modifying vmdisk hook

I cloned the git tree and copied the script in /usr/libexec/vdsm/hooks/before_vm_start/

Le 05/06/2012 16:27, Shahar Havivi a écrit : >On 05.06.12 16:21, Nathanaël Blanchet wrote: >>Hi, >> >>when executing several hook, I always have this issue in the vdsm logs : >>File "/usr/libexec/vdsm/hooks/before_vm_start/40_directlun", line 9, >>in<module> >>from vdsm import utils >>ImportError: No module named vdsm >> >>and the vm refuses to boot >> >>how to correct this ? >how did you install this? >> >>Le 04/06/2012 17:16, Shahar Havivi a écrit : >>>On 04.06.12 17:03, Nathanaël Blanchet wrote: >>>>Hello, >>>> >>>>I'm testing hooks in vdsm and I need some help on modifying one of >>>>your pyhton script : vmdisk (http://gerrit.ovirt.org/gitweb?p=vdsm.git;a=blob;f=vdsm_hooks/vmdisk/befo...) >>>>the hook works great and I'm able now to attach a file device as a >>>>second disk. But I want this disk to be the first bootable disk >>>>instead of the block device one created into the engine. In order to >>>>change the boot order of the disk, I added those lines: >>>> >>>>... >>>>source = domxml.createElement('source') >>>>source.setAttribute('file', devpath) >>>>disk.appendChild(source) >>>> >>>>boot = domxml.createElement('boot') >>>>boot.setAttribute('order', 1) >>>>disk.appendChild(boot) >>>> >>>> # find a name for vdXXX >>>>..... >>>> >>>>So the hook permit<boot order=1> item >>>>(http://libvirt.org/formatdomain.html#elementsDisks) >>>> >>>>But the vm refuses booting without any logs anywhere... >>>> >>>>What is wrong? >>>> >>>>Thanks for your help >>>Hi, >>>1. try to change the number to string: >>> boot.setAttribute('order', '1') >>>2. you have a libvirt log at /var/log/libvirt/qemu/youvmname.log >>>3. when the script enumerate all the disks you need to change the other disk >>> boot order: >>> for d in xmldisks: >>> # here look in each disk for boot element and change its order attribute >>> # to other number, ie 2, 3 ... >>> >>> >>>>-- >>>>Nathanaël Blanchet >>>> >>>>Supervision réseau >>>>Pôle exploitation et maintenance >>>>Département des systèmes d'information >>>>227 avenue Professeur-Jean-Louis-Viala >>>>34193 MONTPELLIER CEDEX 5 >>>>Tél. 33 (0)4 67 54 84 55 >>>>Fax 33 (0)4 67 54 84 14 &gt;&gt;&gt;&gt;blanchet(a)abes.fr >>>> >>-- >>Nathanaël Blanchet >> >>Supervision réseau >>Pôle exploitation et maintenance >>Département des systèmes d'information >>227 avenue Professeur-Jean-Louis-Viala >>34193 MONTPELLIER CEDEX 5 >>Tél. 33 (0)4 67 54 84 55 >>Fax 33 (0)4 67 54 84 14 &gt;&gt;blanchet(a)abes.fr >> -- Nathanaël Blanchet Supervision réseau Pôle exploitation et maintenance Département des systèmes d'information 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 blanchet(a)abes.fr