RHEL Release 4 -- MAKEDEV question

[Supriya Sriraman]

I recently started working on a RedHat system.

Today, I was trying to do something that I have done in the past on a Debian
system but I noticed that /dev is is missing many files/devices that I had
been using on the Debian system.
Here are some of them (there are many others):

brw-rw----    1 root     disk       3,   0 Mar 14  2002 /dev/hda
brw-rw----    1 root     disk       3,   1 Mar 14  2002 /dev/hda1
brw-rw----    1 root     disk       3,   2 Mar 14  2002 /dev/hda2
brw-rw----    1 root     disk       3,   3 Mar 14  2002 /dev/hda3
brw-rw----    1 root     disk       3,   4 Mar 14  2002 /dev/hda4
brw-rw----    1 root     disk       3,   5 Mar 14  2002 /dev/hda5
brw-rw----    1 root     disk       3,   6 Mar 14  2002 /dev/hda6
brw-rw----    1 root     disk       3,   7 Mar 14  2002 /dev/hda7
Is this expected on RedHat? What can I do to rectify this?
I am new to this, so I would appreciate any help that anyone can give me!

Thanks!