are you sure the usb flash drive is mounted in /media/USB\ DISK? if this is the case, do you have enough rights to umount the disk.
anyway try to umount adding sudo before the umount command, probably it'll ask you for your password: [EMAIL PROTECTED]:~$ sudo umount /media/USB\ DISK if this doesn't work, please paste the content of the following commands: df, ls /media, id -- /bin/umount does not work for automounted USB flash drives https://bugs.launchpad.net/bugs/133313 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
