Have a look at the linux-admin-FAQ section "I forgot my root password"
http://www.kalug.lug.net/linux-admin-FAQ/
http://spyjurenet.com/linux/
http://beryte.com/linux/faq/
http://www.miscellaneous.net/linux/
http://www.cybernet.bg/linux/
here is a copy of this section:
------begin
Question 4.1 I forgot my root password. How do I log in?
There are some ways to do it. :-) The easiest way is to shut down your
machine, boot it into shell and change root's password:
To boot into shell:
boot: linux init=/bin/sh
To change root's password:
bash# mount -o remount / -rw
bash# passwd root
Important While this method would work on Linux, the "correct" way on
doing such things on most Unices is to boot
machine into single user mode. Note: You need to mount the root partition
in read/write mode, so you can modify it.
Alternately, you may log in as a different user and try to hack your
machine. :-)
----end
-----Message d'origine-----
De: Jessup, Kevin [SMTP:[EMAIL PROTECTED]]
Date: mardi 25 août 1998 21:17
À: [EMAIL PROTECTED]
Objet: Duh ... Password?
This may seem like an extremely dumb question but what is the default
password for the admin account after you install Linux? (I'm an NT
administrator and haven't touched Linux in 2 years)