Red Hat Enterprise Linux 3: Red Hat Enterprise Linux Step By Step Guide
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# 12.8. Forgotten Password

Help! I forgot my root password. How do I log in now?

You can log in using single-user mode and create a new root password.

To enter single-user mode, reboot your computer. If you use the default boot loader, GRUB, you can enter single user mode by performing the following:

1. At the boot loader menu, use the arrow keys to highlight the installation you want to edit and type <KEYCAP >[A]</KEYCAP > to enter into `append` mode.

2. You are presented with a prompt that looks similar to the following:

       grub append> ro root=LABEL=/

3. Press the Spacebar once to add a blank space, then add the word `single` to tell GRUB to boot into single-user Linux mode. The result should look like the following:

       ro root=LABEL=/ single

4. Press <KEYCAP >[Enter]</KEYCAP > and GRUB will boot single-user Linux mode. After it finishes loading, you will be presented with a shell prompt similar to the following:

       sh-2.05b#

5. You can now change the root password by typing

       passwd root

   You will be asked to re-type the password for verification. Once you are finished, the password will be changed. You can then reboot by typing `reboot` at the prompt; then you can log in to root as you normally would.

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