FORGOTTEN ROOT PASSWORD IN LINUX

14.2. Forgotten root 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 [A] 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 [Enter] 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.

SOURCE: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/4/html/Step_by_Step_Guide/s1-q-and-a-root-passwd.html

SOME SOURCE:

http://linuxconfig.org/recover-reset-forgotten-linux-root-password

http://linuxgazette.net/107/tomar.html

https://fedoraproject.org/wiki/How_to_reset_a_root_password

https://wiki.archlinux.org/index.php/Reset_root_password

http://www.tecmint.com/reset-forgotten-root-password-in-rhel-centos-and-fedora/

Advertisements
This entry was posted in LINUX and tagged , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s