Hrm. So maybe Deja Dup is using crazy amounts of your /tmp directory. Which might happen if you have very large files to backup. I believe it might conceivably use up to the size of your largest file.
To workaround that, you could run Deja Dup like so: "TMPDIR=/home/myhom/tmp deja-dup" and see whether that's any better. The encryption aspect shouldn't matter. To get more information about Deja Dup in general (more than "unknown error"), run it with debugging on: DEJA_DUP_DEBUG=1 deja-dup | tail -n 200 > /tmp/deja-dup.log And upload /tmp/deja-dup.log. It might tell me what went wrong. ** Changed in: deja-dup (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/769323 Title: The volume "Filesystem root" has only x MB disk space remaining -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs