Recovering Your Linux Password

- To boot into single-user mode from GRUB, do the following from
the GRUB menu screen:

1. Select the desired kernel.

2. Press the 'e' key to edit that entry.

3. Use the arrow keys to navigate to the kernel line
(for example: kernel /vmlinuz-2.6.x-x ro root=/dev/hdx2)

4. Press the 'e' key to edit the line.

5. Add the argument 'single' to the end of the line and
press return.

6. Press the 'b' key to boot.

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Instructions

    Recovering Your Password
        1

        Power on the system that you need the root password for.
        2

        Wait for the screen that lists your current kernels to appear. Select which kernel you wish to boot---normally the topmost one---and press "e."

3

        Move the cursor down to the line of text that begins with "kernel" and move the cursor all the way to the end of the line. Type a space after the last character and type "1" (without quotes).

4

        Press "Enter" to return to the boot screen. Press "b" on the kernel you selected previously, and then type "passwd," which will allow you to change the root password. Then type "exit" and the system will reboot normally.