GNU GRUB 啓動菜單處按e而後編輯linux
linux /boot/vmlinuz-x.y.z-mm-generic root=UUID=[xxxxxxxxxxxxxxxxxxxx] ro quiet splash $vt_handoffbash
---->爲:ui
linux /boot/vmlinuz-x.y.z-mm-generic root=UUID=[xxxxxxxxxxxxxxxxxxxx] rw init=/bin/bashspa
按F10 ,啓動後無需密碼獲得root權限,而後passwd 用戶名進行改密碼it