I followed the following steps, but just could not get to the single user mode. My question is, when I append "S" or "Single", to the end of the kernel line, do I need to add a space first? In any event, I tried both, still could not get to the single user mode. it will all the way bring me to normal multi-mode. I have HP hardware.
1.Select the kernel
2.Press the e key to edit the entry
3.Select second line (the line starting with the word kernel)
4.Press the e key to edit kernel entry so that you can append single user mode
5.Append the letter S (or word Single) to the end of the (kernel) line
6.Press ENTER key
7.Now press the b key to boot the Linux kernel into single user mode
Perhaps you can tell us what OS and version you are using.
Generally adding the word "single" to the end of the kernel line, e.g. "quiet single" will do. Your problem is probably that you use "Single" instead of "single". Lowercase "s" and "init 1" should work too.