Boot Linux Grub Into Single User Mode

Q. How do I boot a Linux system into single user mode?

A. Single user mode is useful to fix some system problem. Following are steps you need to use to boot Grub boot loader into single user mode.

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Procedure: Boot Linux Grub Boot Loader into single user mode

(1) At grub boot screen (after restart)

(2) Select the kernel

(3) Press the e key to edit the entry

(4) Select second line (the line starting with the word kernel)

(5) Press the e key to edit kernel entry so that you can append single user mode

(6) Append the letter S (or word Single) to the end of the (kernel) line

(7) Press ENTER key

(8) Now press the b key to boot the Linux kernel into single user mode

(9) When prompted give root password and you be allowed to login into single user mode.

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I'm Vivek Gite, and I write about Linux, macOS, Unix, IT, programming, infosec, and open source. Subscribe to my RSS feed or email newsletter for updates.

33 comments… add one
  • Bhukya Oct 3, 2015 @ 17:51

    Hi,
    Am not able to login in single user mode centos 6.0, it’s asking to enter root password or control -D, to continue, if I give password it’s not accepting…..can any one help me to come out firm this……olz

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