I have this problem too. All the other methods to eject/unmount the devece are succesful (including sudo eject /dev/sdc). When clicking on "Safely remove drive" from nautilus I get:
Unable to stop 120 GB Hard Disk Error detaching: helper exited with exit code 1: sense buffer empty Error SYNCHRONIZE CACHE for /dev/sdc: Successsense buffer empty Error STOP UNIT for /dev/sdc: No such file or directory Ubuntu 9.10 - Karmic Koala kernel version 2.6.31-14-generic -- secure remove of external USB-HDD produces error https://bugs.launchpad.net/bugs/466575 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs