I have this problem as well with 14.04. The eject button in Nautilus works as I can see the device unmount from /media/username/DeviceName, then it immediately remounts. There are no errors with using "sudo umount /media/username/DeviceName", however the device will also remount.
I've also gotten the error "Cannot eject drive in use: Device /dev/sdg1 is mounted" until I close all Nautilus windows and reopen one, but this may not be related. Device specs: - USB 64G (PNY) - Fat32 format - 1 Primary partition - Bootable - Created with Startup Disk Creator -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/792085 Title: Automatic remount of safely removed drive To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/792085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs