Path: BSD :

BSD

Berkeley Software Distrobution...

 NetBSD - networking version of the BSD operating system. NetBSD is a BSD-Lite.
   adjustkernal-1.7.tar.gz - automaticly configure a custom kernel for your specific hardware.

 FreeBSD - production version of the BSD operating system for i386 hardware.

 OpenBSD - secure version of the BSD operating system.
   OpenBSD 2.9 CD1 - OpenBSD operating system for i386 hardware.
   OpenBSD 2.9 CD2

If you forget your root password on BSD: 

01) Reboot your computer into single user mode.
02) $ mount -u -w /
03) $ mount -w /
04) $ mount -w /var
05) $ mount -w /usr
06) $ vipw
07) Delete the password hash code in the /etc/passwd file.
08) Reboot into multi user mode ("reboot" command).
09) Login as root and just hit the enter key at the password prompt.
10) Set the root password.
11) $ passwd -l root