I cannot reproduce this - a compat=0.10 image which I create on 14.04 works fine for me in a 12.04 instance. I copied it, attached it to nbd0, ran fdisk, created a fs, and mounted that.
-- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1282655 Title: qcow2 images are not backwards compatiable with 12.04's qcow2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1282655/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
