guestmount (from libguestfs) was added as a method for mounting disk images before doing operations on them. By default Nova tries to use loop, then nbd, then guestfs (you can change the order using the 'img_handlers' flag). For COW images, it skips loop...
So it could be possible that you used COW images, hit an issue with NBD and stumbled on the libguestfs code. If for some reason guestmount can't be packaged in Ubuntu (or is an unreasonable dependency), I guess we could set img_handlers = [ 'loop', 'nbd' ] in the nova.conf file we ship to avoid trying using guestmount and error on the NBD failure instead... -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to nova in Ubuntu. https://bugs.launchpad.net/bugs/915971 Title: New command "guestmount" To manage notifications about this bug go to: https://bugs.launchpad.net/openstack-ppa/+bug/915971/+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
