set up DVD drive symbolic links
I recently installed Debian using a Knoppix CD and upgrading using apt-get. The computer has a CD/RW drive and a DVD drive. The CD/RW drive works, but DVD drive does not. If I type "ls -al /dev/dvd" I get "/dev/dvd -> /KNOPPIX/dev/dvd". This is obviously incorrect, and I think may be the root of the problem. My questions are:
1) How do you correctly remove the current symbolic link and replace it with the correct symbolic link?
2) How do I tell what a device is under Linux? For example, I know /dev/hda/ is my hard drive, but how do I tell what my DVD drive is? How do I know if the DVD should be /dev/sda, /dev/scd, /dev/hdb, etc.?
If it helps at all, the CD/RW is IDE master and DVD is IDE slave.