If you forget your root password and want to recover it, you can do so by accessing the ACS via the console port and rebooting the box. During the boot process, when you see the line:

“Linux/PPC load: root=/dev/ram ramdisk=0x0000F000”

You must press the space key once, type single and press enter (see diagram bellow). The ACS will continue the boot process and will give you the root prompt.

Hardware boot.

Entry Point = 0x00002120

loaded at: 00002120 00B9B3CC
relocated to: 00800020 013992CC
board data at: 01396024 0139623C
relocated to: 00806730 00806948
zimage at: 00807150 008A9FB3
initrd at: 008AA000 013956F4
avail ram: 0139A000 08000000

Linux/PPC load: root=/dev/ram ramdisk=0x0000F000 single

With the root prompt you can change the password using the command passwd. You will have to reboot the unit again for the new password to take effect.

[root@(none) /]# passwd root
New password: tslinux
Re-enter new password: tslinux
Password changed
[root@(none) /]# saveconf
[root@(none) /]# reboot