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Managing the System Bootloader in RHEL 8
The bootloader is the first software program that executes when the system starts, and it's in control until it passes it to the kernel, which brings up the rest of the operating system. The GRUB bootloader in RHEL is highly configurable. In this hands-on lab, we will work with the system bootloader on RHEL 8. *This course is not approved or sponsored by Red Hat.*
Lab Info
Table of Contents
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Challenge
Modify the System Bootloader
- Query the GRUB configuration files.
- Alter GRUB configuration options.
- Regenerate and install GRUB with the updates.
- Reboot and query the GRUB configuration.
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Challenge
Set and Test Default Kernel Options
- Query the installed kernels.
- Query and change the default kernel (index).
- Reboot and test configuration.
- Restore the original default kernel.
Real skill practice before real-world application
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Learn by doing
Engage hands-on with the tools and technologies you’re learning. You pick the skill, we provide the credentials and environment.
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All labs have detailed instructions and objectives, guiding you through the learning process and ensuring you understand every step.
Turn time into mastery
On average, you retain 75% more of your learning if you take time to practice. Hands-on labs set you up for success to make those skills stick.