[Gem 5] Recover ubuntu root password in Virtualbox (reset password trong ubuntu)

some how you get lost your password. Then, I can not remember what your password is. you can reset your password.

Step1: restart your ubuntu and hold shift key until the boot screen appears.

Step2: choose the generic second boot option

Step3: the new screen appears, choose "Drop into root shell prompt"

Step4: run below command:
           >> mount -rw -o remount /

Step5: run below command to create new root password
          >> sudo passwd root


If you see some error like:
passwd: Authentication token manipulation error
passwd: password unchanged

This means that you did not run the command at step 4. If so, try to run the command at step 4 and then command at step 5.

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Lấy lại password trong ubuntu dùng virtualbox. Theo các bước ở trên