In my case these same errors are happening when trying to probe a Windows recovery partition on a dual boot system. I've worked around this bug by adding the following content to /usr/lib/os-probes/00skip- unknown:
#!/bin/sh # Skip unknown partitions to avoid syslog errors set -e partition="$1" . /usr/share/os-prober/common.sh if [ "$partition" = /dev/<your-recovery-partition-here> ]; then debug "$partition is a Windows recovery partition; skipping" exit 0 fi # No tests found anything. exit 1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1374759 Title: >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1374759/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs