Password reset methods for different Linux distro

Hello friends!!! I want to share password reset methods for different Linux distro! You are welcome to add new.. Here is some assumptions when you write for It :

• Username is 'Linux', You can replace Linux with anything as ur case
• Linux is installed in /dev/sda1, You may replace the /dev/sda1 with ur drive...
• OS installation drive is not encrypted
• Cant help in resetting BIOS password

 Ubuntu :

• Boot from Live CD, You can use Ubuntu itself or any other...
• Go to super user mode shell using sudo command

$ sudo su

• Mount whole file system under mount using command mount.

# mount /dev/sda1 /mnt

• Now u need to chroot to /mnt with sudo command

# chroot /mnt /bin/sh

• Okay now here is babystep, password will not be shown...

# passwd Linux

Enter new UNIX password :

Verify password :

• Just reboot and use your new password to login...

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