root@Mach5-NX:~# fuser -m /media/prison /media/prison__: 3196c 3285c root@Mach5-NX:~# ps -ef | grep 3285 ikhsan 3285 3196 0 07:07 pts/1 00:00:00 vi lgf.conf
With that information in hand, you can start shutting down services, or killing the process that’s preventing you from unmounting the partititon:
root@Mach5-NX:~# kill 3285
Repeat the step above for each process listed on the previous command.
Or, if you’re feeling nasty, you can always kill all the process that’s using the partition, by issuing:
root@Mach5-NX:~# fuser -km /media/prison /media/prison__: 3350c 3437c
Unmount the drive normally
root@Mach5-NX:~# umount /media/prison
…And we’re done 🙂