This actually smells something with systemd, as I just noticed that the original issue is that the mount point gets unmounted right after it gets mounted by ubuntu-emulator.
rsalveti@evasys:/tmp/sergio$ sudo ubuntu-emulator create --channel=ubuntu-touch/vivid-proposed test_x86 --use-raw-disk Creating "test_x86" from ubuntu-touch/vivid-proposed revision 138 Downloading... Setting up... Mount: calling: mount /home/rsalveti/.local/share/ubuntu-emulator/test_x86/ubuntu-system.img /tmp/ubuntu-system364514705 And from syslog: Mar 16 19:17:06 evasys systemd[2918]: Unit tmp-ubuntu\x2dsystem364514705.mount is bound to inactive unit. Stopping, too. Mar 16 19:17:06 evasys systemd[1]: Unit tmp-ubuntu\x2dsystem364514705.mount is bound to inactive unit. Stopping, too. Mar 16 19:17:06 evasys systemd[1]: Unmounting /tmp/ubuntu-system364514705... Mar 16 19:17:06 evasys systemd[2918]: Unmounting /tmp/ubuntu-system364514705... Mar 16 19:17:06 evasys kernel: [55815.378380] EXT4-fs (loop0): mounted filesystem with ordered data mode. Opts: (null) Mar 16 19:17:06 evasys systemd[1]: Requested transaction contradicts existing jobs: Resource deadlock avoided Mar 16 19:17:06 evasys umount[27719]: umount: /tmp/ubuntu-system364514705: not mounted Mar 16 19:17:06 evasys systemd[2918]: tmp-ubuntu\x2dsystem364514705.mount mount process exited, code=exited status=1 Mar 16 19:17:06 evasys systemd[2918]: Unmounted /tmp/ubuntu-system364514705. Mar 16 19:17:06 evasys systemd[2918]: Unit tmp-ubuntu\x2dsystem364514705.mount entered failed state. Mar 16 19:17:06 evasys systemd[1]: Unmounted /tmp/ubuntu-system364514705. Same happens when I try to manually mount the system image. And which is interesting because mount actually works fine, not giving any error, but then systemd just unmount it right away. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1423459 Title: ubuntu-emulator create fails for devel-proposed: Failed to unmount temp dir where system image was created To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/goget-ubuntu-touch/+bug/1423459/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
