yup, just add your drive
like:
file system dir type options dump pass
for example,
/dev/hdb /mnt/hdb vfat user,noauto 0 0
that's harddisk B, mounted to /mnt/hdb (which must exist! so create it) using vfat-filesystem (windows; for linux, put ext2/3/what it is). user means that user can mount/unmount it (not only root) and noauto that it's not automatically mounted (you may leave it off)
EDIT:
for the options etc. you might want to look fstab's man-page (in terminal, type "man fstab" without quotes). there is everything you need to know...the line you add is the type the one above, just put in your own paths and options..when you've edited, reboot your machine and fstab is read and you can use your new disc.
if it's hdb you need, then /dev/hdb should be the device. just create a directory called hdb (or whatever) in /mnt/ and put it into your fstab (like above), then tell fstab the filesystem of the disc (windows uses vfat usually) and give options. usually user,noauto,owner is enough...and dump/pass can be given as a 0 0.
if some error happens or you mistype something, nothing gets destroyed...it's just that usually you get an error message while booting, telling about this, and that the disc cannot be read/written from your linux until you fix fstab. everything else works
btw. if the disc isn't automounted at boot (you tell fstab not to automount it), you can mount it manually in terminal:
Code:
mount /dev/hdb /mnt/hdb
still you need an entry in fstab to get this work. I guess leaving the noauto-option off makes your linux mount it automatically..then just set the permissions for users/groups so that they can access the drive as you wish and it's there... here's quite a lot of text but the thing is easy to do
sorry I over-guided a bit...got excited...