Linux forgotten root password

Forgot my root password, how can I get into my Linux System?  
Here is the procedure to reset password of Linux root user



If your boot loader is GRUB

Following is the procedure to reset root password if you are using GRUB as a boot loader:

1. Select the kernel
2. Press the e key to edit the entry
3. Select second line (the line starting with the word kernel)
4. Press the e key to edit kernel entry so that you can append single user mode
5. Append the letter S (or word Single) to the end of the (kernel) line
6. Press ENTER key
7. Now press the b key to boot the Linux kernel into single user mode
8. At prompt type passwd command to reset password:

You need to mount at least / and other partitions:
# mount -t proc proc /proc
# mount -o remount,rw /Change the root password, enter:
# passwdFinally reboot system:
# sync
# reboot
If your boot loader is LILO

At LILO boot loader type linux single and press [ENTER] key:

Boot: linux singleWhen you get the # prompt you will need to type passwd root to reset password:
# passwdReboot system:
# sync
# reboot