Ubuntu forgotten password


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What to do when you forgot your password for your ubuntu machine?? Here are some simple steps on how to change

the password using single user mode. 

  • Reboot the machine
  • When grub is loading, press ‘Esc
  • Choose ‘Ubuntu kernel………..(recovery mode)
    • Press ‘e‘ to edit the kernel parameter
    • Append ‘single init=/bin/bash‘ to the kernel parameter
  • Press ‘b‘ to boot from that particular kernel
  • You will enter single user mode
  • Your hard drive will be in read-only mode. Remount it in read-write mode
    • # mount -o remount,rw /dev/sda1
  • Change your passwd
    • # passwd user
  • Reboot your machine
  • Access your machine using your new password
  • Congratulations, you just changed you user password using single user mode


    Source: Linuxwave