How To: Recover the Linux root password

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How To: Recover the Linux root password

Postby daniel » Thu Apr 22, 2021 9:23 pm

Orginal Link but still valid for latest versions :D

Lost or forgot the root password on Linux server


Boot server from the installation CD.
Then select any installation method or Rescue System.
At the first installation screen when selecting language, press ctrl-alt-f2 to open a virtual console.
Note: If you selected Rescue System, select your keyboard language and then a Rescue Login prompt should appear. Login as root.

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fdisk -l

to list the partitions. Locate the Linux root partition.

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mount /dev/sda4 /mnt

(replace sda4 with the device name for the Linux root partition identified in the previous step).

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mount -o bind /dev /mnt/dev

to make the device files available (this is needed for access to the urandom device which may be used by the passwd command below).

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chroot /mnt

Now enter

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passwd root

and reset the root password.

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to leave the chroot environment.
Reboot the system.

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