How to enter Single User Modus on Linux? april 3, 2019 Servers Reboot your server, and press the shift and/or Escape key on your keyboard until you get a Grub prompt. 2. Find the line with ‘linux16 /boot/vmlinuz-xxxx’, and change ‘ro’ to ‘rw’, and append ‘init=/bin/bash’. 3. Press Ctrl+x to boot the server.