Switch or Boot into Text Mode in Ubuntu

Switch into Text mode

Press Ctrl+Alt+F3 to tty3 text console, and switch back via Ctrl+Alt+F2.

Boot into Text mode

• Edit /etc/default/grub

  • Disable GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
  • Set GRUB_CMDLINE_LINUX="text"
  • Set GRUB_TERMINAL="console" to disable graphical terminal.

• Update grub by running command update-grub

• Set system to multi user mode systemctl set-default multi-user.target

References

How to Boot Ubuntu 20.04 into Text / Command Console