I was frustrated having to give a password when I wanted access to my Data
partition, sda4. I tried various help suggestions, tried to modify 'fstab'
without success and then got in knots with various 'mkdir' 'mount' and 'rmdir'
commands. The final result is the partition appears as a new partition but I
have lost all my data. The partition still exists but is there a way I can
recover the data?