So to gather more pointers I tried a Trusty host and Utopic KVM guests. Either manually created (with virt-manager and not involving cloud-init then) and also using uvtool which is at least using a vdb for cloud-init data (in some way, though the image is a ro iso). Both ways the jbd2 process goes away after unmount.
-- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to ceph in Ubuntu. https://bugs.launchpad.net/bugs/1371526 Title: ceph-disk-prepare command always fails; new partition table not avaliable until reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1371526/+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