Ubuntu
linux package

  1. Bug #1292234
  2. Comment #4

Comment 4 for bug 1292234

Revision history for this message
Jamie Strandboge (jdstrand) wrote : Re: qcow2 image corruption in trusty (qemu 1.7 and 2.0 candidate)

Did you try with the image on https://chinstrap.canonical.com/~jamie/lp1292234/? I was only able to trigger it by using an old image, creating the snapshot, starting it, apt-get dist-upgrading, cleanly shutting down, then deleting the snapshot and creating another with the same name. Using a fresh install or a too new image doesn't do it for me (I guess enough has to happen in the guest to trigger it).

Ie:
$ virsh snapshot-create-as forhallyn-trusty-amd64 pristine "uvt snapshot"
$ virsh snapshot-current --name forhallyn-trusty-amd64
pristine
$ virsh start forhallyn-trusty-amd64
$ virsh snapshot-list forhallyn-trusty-amd64 # this is showing as shutoff after start, this might be different with qemu 1.5

in guest:
sudo apt-get update
sudo apt-get dist-upgrade
780 upgraded...
shutdown -h now

$ virsh snapshot-delete forhallyn-trusty-amd64 pristine --children
$ virsh snapshot-create-as forhallyn-trusty-amd64 pristine "uvt snapshot"

$ virsh start forhallyn-trusty-amd64 # this command works, but there is often disk corruption