from time to time I forget the password for [root] user in some of my Linux installations , and to reset the password I just follow these steps :
- Press F2 when the splash screen comes up
- A GRUB screen will display
- enter the letter “e” (without quotes)
- Using the arrow keys, move the cursor to the line for kernel
- Enter the letter ‘e’ again.
- You will see a command line
- After the last word/character append a space and the word single (single mode)
- Hit Enter
- Make sure the cursor is on the kernel line
- enter the letter ‘b’ (this will boot)
- System will load into single mode, should see
- Enter command $ passwd root
- Enter new password two times
- Enter exit (this will reboot)
- Test the new root password voila 🙂
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