In this tutorial, we will demonstrate How to Boot into Single User Mode in CentOS/RHEL 7.
Login to your Console - Lilo / VM Console
Single user mode is a mode in which a multi-user computer operating system boots into a single superuser. It is mainly used for maintenance of multi-user environments such as network servers. Some tasks may require exclusive access to shared resources.
The first thing to do is to open Terminal and log in to you CentOS 7 server.
After, restart you server wait for GRUB boot menu to show.
Next step is to select your Kernel version and press
e
key to edit the first boot option.Find the kernel line (starts with “linux16“), then change the
ro
to
rw init=/sysroot/bin/sh or rw init=/sysroot/bin/bash
When you have finished, press
Ctrl-X or F10
to boot into single user mode
After mount root filesystem using the following command:
# chroot /sysroot/
Now, to finish this process reboot your server using the following command:
# reboot -f
