[Users] clone vm from snapshot problem in 3.2

[Gianluca Cecchi]

On Wed, Feb 27, 2013 at 1:21 PM, Liron Aravot  wrote:

>> Hi Gianluca,
>> I've built 3.2 and had success in reproducing your issue, I've also
>> tested the fix and after it the clone window shows fine - so this
>> should solve your issue (http://gerrit.ovirt.org/#/c/11254/).
>>
>> Thanks, Liron.

Hello,
so I rebuilt with the patch.
I built as in this thread:
http://lists.ovirt.org/pipermail/users/2013-February/012702.html

directly on engine server and with engine stopped:

sudo rpm -Uvh --force $(ls -1|grep -v all)

with
$ ls -1|grep -v all
ovirt-engine-3.2.0-4.fc18.noarch.rpm
ovirt-engine-backend-3.2.0-4.fc18.noarch.rpm
ovirt-engine-config-3.2.0-4.fc18.noarch.rpm
ovirt-engine-dbscripts-3.2.0-4.fc18.noarch.rpm
ovirt-engine-genericapi-3.2.0-4.fc18.noarch.rpm
ovirt-engine-notification-service-3.2.0-4.fc18.noarch.rpm
ovirt-engine-restapi-3.2.0-4.fc18.noarch.rpm
ovirt-engine-setup-3.2.0-4.fc18.noarch.rpm
ovirt-engine-tools-common-3.2.0-4.fc18.noarch.rpm
ovirt-engine-userportal-3.2.0-4.fc18.noarch.rpm
ovirt-engine-webadmin-portal-3.2.0-4.fc18.noarch.rpm

and then reboot the engine

Results:

OK, for the snapshot details pane. It seem the patch fixes this too.
Until now I was never able to see snapshot details,
Instead now I can see disk and nic details. See:
https://docs.google.com/file/d/0BwoPbcrMv8mvQmlCZTZBYjBadmc/edit?usp=sharing


OK, if I clone a VM from a snapshot of a running VM (CentOS 5.6)
I start the clone and no problem at all.

well done!


Corner cases and problems

1)
OK, if I clone a powered on VM from a snapshot with two disks and here
you can find clone in action with webadmin gui and iotop on node that
shows they are cloning in parallel.. well!
https://docs.google.com/file/d/0BwoPbcrMv8mvZ3lzY0l1MDc5OVE/edit?usp=sharing

The VM is a slackware 14 32bit with virtio disk that I obtained from a
virt-v2v from CentOS 6.3+Qemu/KVM
The problem is that the cloned VM recognizes the disks in reversed order

See these images where sl1432 is master slcone is the clone

disk layout in details pane seems equal with boot disk the one that
appears as the second, but the master boots ok, the slave no.
Disks are swapped

Master VM disk details:
https://docs.google.com/file/d/0BwoPbcrMv8mvSWNVNFI4bHg4Umc/edit?usp=sharing

Clone VM disks details:
https://docs.google.com/file/d/0BwoPbcrMv8mvM1N0bVcyNlFPS1U/edit?usp=sharing

Page with the two consoles where you can see that vda of master
becomes vdb of clone and vice-versa:
https://docs.google.com/file/d/0BwoPbcrMv8mveFpESEs5V1dUTFE/edit?usp=sharing

Can I swap again in some way? In VMware for example you can see and
edit SCSI IDs of disks...

2)
KO, if I clone a windows 7 VM from a snapshot (time 17:09) I get this on gui
https://docs.google.com/file/d/0BwoPbcrMv8mvaW9OVW84WVI1dkU/edit?usp=sharing

You can find the engine.log from server restart (at 17:06) here:
https://docs.google.com/file/d/0BwoPbcrMv8mvTDQzRTFfbFgxX0E/edit?usp=sharing

Are there any restrictions?
The VM was powered off when taking the snapshot and making the clone.

Gianluca