1, through the serial connection to the control station is the only way to reset the administrator password. Serial connection after the use of putty tools such as login, connection properties set to 19200, 8, no, 1 can be.
2, through the control station front Panel power button to restart control station.
3, after the control station completion of the BIOS self-test and grub load, in the presence of "auto booting in seconds" prompt press any key to abort the automatic start.
4, press e key to edit the command before starting.
5, press e key to edit the start sequence.
6, the interface will appear three options: Root (hd0,0)
Kernel/***/***/****
INITRD/***/***/***
Select the second option, and then enter "single" to note that you want to add a space before.
7, press ENTER to confirm, press B to restart the device.
8, the system will enter Single-user mode, prompt sh-3.2# will appear, after the prompt using the command #passwd boot to modify the password.
9, run the command #init 6 restart can be.