Root password Linux reset in 1 minute

This little trick recently saved me from a critical situation and shows one more time the weakness of every system with unencrypted disks.

Press e at grub loading :


Add a init=/bin/bash after the line /boot/vmlinuz (…)


Press CTRL+X to boot. If your partition is encrypted, you’ll be prompted to enter your password. If not, you’ll be directly dropped in a shell with root privileges.

You still need to mount the partition to be able to modify /etc/shadow file.

Execute :

mount -o remount -o /


Change your password with the basic command :



Just reboot, et “voilà” !

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