Fred Smith wrote: > On Tue, Oct 07, 2014 at 06:19:00PM -0400, m.roth at 5-cent.us wrote: >> Fred Smith wrote: >> > I've got a usb HD mounted, and it has been mounted since the weekend, >> and has been kept busy during that period. >> > >> > now I"m done with it an want to umount it, but neither umount nor the >> > on-screen icon (when right-clicked) will let me do it: >> > >> > it is /dev/sdd1, mounted as /media/seagateusb. when root tries to >> > umount it we get this: >> <snip> >> It's under control of autofs. You can open the GUI file manager, and do >> a safely remove/eject. >> >> Or you can stop autofs for a minute, and then umount it. > > actually, no I can't. if I right-click on seagateusb and click unmount, I > get an error box saying "Unable to unmount seagateusb. Cannot unmount > because file system on device is busy." <snip> Ok, try lsof /media/seagateusb - that may tell you what's holding it. Did you try service autofs stop? mark