Reset lost root password on Ubuntu 16.04 Xenial Xerus Linux


Reboot to Grub Menu

Press SHIFT after you start your computer until GRUB’s menu appears:

grub-menu

 

Edit Grub Menu

Once you reboot to Grub menu, select the first menu item or the menu item you normally use to boot your Ubuntu system and press e to edit:

Once in the Grub’s boot menu edit mode use navigation arrows to locate a line starting with linux and edit it to include or append read-write mode rw and init=/bin/bash.

 

Once ready press CTRL+x or F10 to boot.

 

Reseting root’s password

root@(none):/# mount | grep -w /

root@(none):/# passwd

Reboot System

Reboot your system using the following command:

root@(none):/# exec /sbin/init

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