====== Resetting forgotten user passwords under Linux ======

===== Using a Live system =====
  - Boot the Live system and open a prompt.
  - If not already mounted, mount the file system in question. \\ <code bash>sudo mkdir /mnt/sda3
sudo mount /dev/sda3 /mnt/sda3</code>
  - Chroot into the system. \\ <code bash>sudo chroot /mnt/sda3</code>
  - Change the password. \\ <code bash>passwd unluckyuser</code>

===== Using Recovery mode =====
  - Hold <key>Shift</key> when booting to bring up GRUB menu
  - Select a kernel with recovery mode
  - In the recovery menu, select root (Drop to root shell prompt)
  - Confirm with <key>Enter</key>
  - Mount / as writable \\ <code bash>mount -o remount,rw /</code>
  - Change the password \\ <code bash>passwd unluckyuser</code>