If the disk is mapped as /dev/sdb1 which you want to map to /home/jim/multimedia then mount the disk and execute the following commands.
Code:
chown jim:users /home/jim/multimedia
chmod 770 /home/jim/multimedia
You only have to do this once. The next time that it is mounted the permissions and ownership will be okay.
On the other hand if the disk has several directories for different types of files you can mount the disk in one place and use the bind function in the mount utility to mount the subdirectories on different mount points. For example, lets say that the second disk has high level directories music, movies, and pictures you may want to mount them to /home/jim/music, /home/jim/movies, and /home/jim/pics respectivesly. In that case you could mount the disk on /mnt/sdb1 and use the bind option of mount to mount each directory to a different place. Your fstab would look like this.
Code:
/dev/sdb1 /mnt/sdb1 auto defaults 1 1
/mnt/sdb1/music /home/jim/music auto auto,bind,uic=jim,gid=users 0 0
/mnt/sdb1/movies /home/jim/movies auto auto,bind,uic=jim,gid=users 0 0
/mnt/sdb1/pictures /home/jim/pics auto auto,bind,uic=jim,gid=users 0 0