If
umount /mnt/[driveName]
says that
device is busy
then it means that some process is still accesing the drive..
To check what process is accessing the drive, try
fuser -v /mnt/[driveName]
..
In my case, i got
Sorceress:/windows # fuser -v /windows/audio/
USER PID ACCESS COMMAND
/windows/audio/ wraith 5854 f.... konqueror
root kernel mount /windows/audio
|
So all i do is kill the konqueror process with a
Kill 5854
and the device umounts successfully
Great source for understanding the /etc/fstab file that has the filesystem configuration information: http://www.tuxfiles.org/linuxhelp/fstab.html