Сбрасываем пароль root на Linux =)

— To boot into single-user mode from GRUB, do the following from
the GRUB menu screen:

1. Select the desired kernel.

2. Press the ‘e‘ key to edit that entry.

3. Use the arrow keys to navigate to the kernel line
(for example: kernel /vmlinuz-2.6.x-x ro root=/dev/hdx2)

4. Press the ‘e‘ key to edit the line.

5. Add the argument ‘single‘ to the end of the line and
press return.

6. Press the ‘b‘ key to boot.

cheers,