At the grub$>$ prompt, type help and press Enter to see a list of available commands, pressing the spacebar to cycle through the entire list. Next, type lsmod and press Enter to see a list of modules loaded by GRUB$2.$ Is the blscfg module loaded? Following this, type list$\_$env and press Enter to view the variables present. By default, there should be a variable called saved$\_$entry that lists the default OS that is booted by GRUB$2($the previously chosen OS stored within $/$boot$/$grub$2/$grubenv$).$ Type reboot and press Enter to reboot your system.

$9$

At the GRUB$2$ boot screen, press e to edit your configuration. Where did you see these contents recently?

$10$

Locate the first line that starts with the word $$linux$$ and navigate to the end of this line $($the last two keywords on this line should be rhgb and quiet$).$ Add the word single after the word quiet and press F$10$ to boot your modified configuration. What does this option tell the boot loader to do$?$

$11$

Supply your root password of LINUXrocks! when prompted.

$12$

At the command prompt, type runlevel and press Enter. What is your current runlevel? What is the most recent runlevel?

$13$

At the command prompt, type cat $/$proc$/$cmdline and press Enter. Note the command used to start your current Linux kernel.

$14$

Reboot your system by typing reboot and pressing Enter. Allow your system to boot normally.