Lab: Control the Boot Process

In this lab, you reset the root password on a system, recover from a misconfiguration, and set the default boot target.

Outcomes

Reset a lost password for the root user.

Diagnose and fix boot issues.

Set the default systemd target.

As the student user on the workstation machine, use the lab command to prepare your system for this exercise.

This command prepares your environment and ensures that all required resources are available.

$[$student@workstation ~$]$$ lab start boot$-$review

Instructions

On the serverb machine, reset the password to redhat for the root user.

Locate the icon for the serverb machine console as appropriate for your classroom environment, and then open the console.

Send Ctrl$+$Alt$+$Del to your system by using the relevant button or menu entry.

When the boot$-$loader menu appears, press any key to interrupt the countdown, except the Enter key.

Use the cursor keys to highlight the rescue kernel boot$-$loader entry $($the one with the rescue word in its name$).$

Press e to edit the current entry.

Use the cursor keys to navigate the line that starts with the linux text.

Press Ctrl$+$e to move the cursor to the end of the line.

Append the rd$.$break text to the end of the line.