Access the emergency shell

Sometimes you may want to access the emergency shell. For instance, to debug first boot provisioning errors.

To access the emergency shell intercept the GRUB menu, edit the entry and drop all console parameters from the kernel line except for the one you need and press Ctrl+X to resume booting.

By default these console parameters are provided:

  • console=ttyS0,115200n8 for serial consoles.

  • console=tty0 for VGA.