Re: [Users] Linux sysprep

On 08/21/2013 07:25 AM, René Koch (ovido) wrote: [snip] > I'm just playing around with the payload feature but I can't access the > cd/floppy in my vm. > I adapted Yuriy's script > (http://lists.ovirt.org/pipermail/users/2013-June/014907.html - which is > working fine btw) to create payload xml content and write it with > hooking.write_domxml(domxml). > > In vdsm.log I can see that my python script exits with status code 0 and > that the content seems to be added to the vm definition: > > Thread-130844::DEBUG::2013-08-21 > 12:43:52,669::libvirtvm::1520::vm.Vm::(_run) > vmId=`79dc3123-4584-4dd9-b0f0-c28ede13d672`::<?xml version="1.0" > encoding="utf-8"?><domain type="kvm"> > <name>centos6</name> > ....snip.... > </cpu> > <payloads><payload type="cdrom"><file > name="unattended.txt"><content>hostname: > centos6</content></file></payload></payloads></domain> > > > But in my vm I can't mount the cd drive: > # mount /dev/sr0 /media > mount: you must specify the filesystem type > > Is there a special filesystem I have to specify? > > Furthermore shouldn't I be able to see the payloads content added to > this vm via REST-API? Because I can't. > > Maybe I'm doing some wrong? > > > Thanks, > René That's a neat script. I haven't used it--instead I just send xml to the rest api, something like this, which looks a lot like yours: <vm id="6aec2d40-e36f-4b02-ab75-933d93f4cb8b" href="/api/vms/6aec2d40-e36f-4b02-ab75-933d93f4cb8b"> <payloads> <payload type="cdrom"> <file name="meta-data.txt"><content>some content</content> </file> </payload> </payloads> </vm> To attach the payload via the rest api, note that you'd need to send a put request to /api/vms/<uuid> rather than pass the xml in the run/start action, because that's not yet supported. Doing this, inside my vm I see: [root@cloud-init-test ~]# blkid /dev/sr1: UUID="2013-08-21-19-39-40-00" LABEL="CDROM" TYPE="iso9660"

And I can mount it without any problems. You can also check the qemu process listing on the host--for instance, mine shows: /usr/bin/qemu-system-x86_64 [...] -drive file=/var/run/vdsm/payload/29e331f9-42df-46e1-aad1-88101b134606.fe53caf3339d55b2b37a893e19e9f10a.img While the vm is running, you can check that file with `file` (should report ISO 9660), mount it on the host, etc. HTH, Greg