I'm on a network, and I'm trying to mount my harddrive on Knoppix, however, when I type in:

mount /dev/hda1

I'm given this message:

mount: wrong fs type, bad option, bad superblock on /dev/hda1, or too many mounted file systems

I realize that I am mounting a harddrive with a few hundred users on it. Is this the problem? I'm new to Linnux, so I don't have an extensive knowledge yet, but I'm learning. If you could help me, that would be greatly appreciated.