Ubuntu
virtinst package

--preserve-data dysfunctional

Bug #1058407 reported by Christoph Egger
14
This bug affects 3 people
Affects Status Importance Assigned to Milestone
virtinst (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

% virt-clone --preserve-data -o master -n node001 -f disk-node001.qcow2
ERROR cannot stat file '/var/lib/libvirt/images/disk-node001.qcow2': No such file or directory

% qemu-img create -f qcow2 -b disk-master.qcow2 disk-node001.qcow2
[...]

% virt-clone --preserve-data -o master -n node001 -f disk-node001.qcow2
ERROR Clone onto existing storage volume is not supported: '/var/lib/libvirt/images/disk-node001.qcow2'

Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise

Note: I never expected the first to work, but I think the second virt-clone should

See original description
Christoph Egger (christoph-egger)
description: updated
Revision history for this message
Christoph Egger (christoph-egger) wrote :

fwiw in CloneManager.py around 477 disabling the exception for the --preserve-data case and it works as expected

Revision history for this message
MikeyB (supermathie) wrote :

Specifically, add the following check:

                    if not self.preserve_dest_disks:
                        raise RuntimeError(
                            _("Clone onto existing storage volume is not "
                              "currently supported: '%s'") % clone_disk.path)

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in virtinst (Ubuntu):
status: New → Confirmed
Revision history for this message
Michael Speer (knomenet) wrote :

I ran into the same problem. I found that calling virt-clone with --preserve-data before calling qemu-img works.

virt-clone succeeds since there is not yet a file there, and then you can put the storage into place after the fact.

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