The alternative to adding mount options to /etc/fstab is to chmod the root of the filesystem. If you mount the filesystem and chmod the mountpoint, you don't in fact change permissions of the mountpoint, but of the root of the filesystem itself. This isn't widely understood. So for really permissive permissions, you could:
If you then unmount the partitions and do a 'ls -l /media' you'll see that the permissions of /media/sda3 and so on haven't changed; the chmod acted on the filesystem itself. Which means that the changed permissions will "stick" if you choose a different mountpoint. Since...
sudo chmod 777 /media/sda3
sudo chmod 777 /media/sdb1
sudo chmod 777 /media/sdc2
Agreed. Which is why I guessed you would want to choose your own.
Originally Posted by breem42
You can also apply chown to the root of the filesystem in the same way with:
... and so on. That is not a recursive chown - neither is the chmod above - so files and folders already in existence are not affected.
sudo chown yourusername: /media/sda3