cgsecurity.org

Using mint 9 on 1 comp and mint 16 on another. sudo ~/testdisk_static /dev/yourdisk only returns "command not found
some help needed. thanks, BT

You can try:

sudo testdisk

If this does not work you could try becoming the Superuser (root). Better disconnect from the Internet and then type:

su -

After that just type:

testdisk


Best of luck