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You're reading from  Linux Kernel Programming - Second Edition

Product typeBook
Published inFeb 2024
PublisherPackt
ISBN-139781803232225
Edition2nd Edition
Tools
Linux
Concepts
System Administration
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Author (1)
Kaiwan N. Billimoria
Kaiwan N. Billimoria
author image
Kaiwan N. Billimoria

Kaiwan N. Billimoria taught himself BASIC programming on his dad's IBM PC back in 1983. He was programming in C and Assembly on DOS until he discovered the joys of Unix, and by around 1997, Linux! Kaiwan has worked on many aspects of the Linux system programming stack, including Bash scripting, system programming in C, kernel internals, device drivers, and embedded Linux work. He has actively worked on several commercial/FOSS projects. His contributions include drivers to the mainline Linux OS and many smaller projects hosted on GitHub. His Linux passion feeds well into his passion for teaching these topics to engineers, which he has done for well over two decades now. He's also the author of Hands-On System Programming with Linux, Linux Kernel Programming (and its Part 2 book) and Linux Kernel Debugging. It doesn't hurt that he is a recreational ultrarunner too.
Read more about Kaiwan N. Billimoria

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Step 7 – customizing the GRUB bootloader

We have now completed steps 1 to 6 as outlined in Chapter 2, Building the 6.x Linux Kernel from Source – Part 1, in the Steps to build the kernel from source section. You can now reboot the system; of course, do first save and close all your apps and files. By default, though, the modern GRUB does not even show us any menu on reboot; it will by default boot into the newly built kernel (do remember that, here, we’re describing this process only for x86[_64] systems running Ubuntu; the default kernel booted into can also vary with the distro).

On x86[_64] you can always get to the GRUB menu during early system boot. Just ensure you keep the Shift key pressed down during boot. Again, this behavior does depend on other factors – on systems with newer UEFI/BIOS firmware enabled, or when running within a nested VM, you may require other ways to force-see the GRUB menu at boot (try pressing Esc too).

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Linux Kernel Programming - Second Edition
Published in: Feb 2024Publisher: PacktISBN-13: 9781803232225
© 2024 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Kaiwan N. Billimoria

Kaiwan N. Billimoria taught himself BASIC programming on his dad's IBM PC back in 1983. He was programming in C and Assembly on DOS until he discovered the joys of Unix, and by around 1997, Linux! Kaiwan has worked on many aspects of the Linux system programming stack, including Bash scripting, system programming in C, kernel internals, device drivers, and embedded Linux work. He has actively worked on several commercial/FOSS projects. His contributions include drivers to the mainline Linux OS and many smaller projects hosted on GitHub. His Linux passion feeds well into his passion for teaching these topics to engineers, which he has done for well over two decades now. He's also the author of Hands-On System Programming with Linux, Linux Kernel Programming (and its Part 2 book) and Linux Kernel Debugging. It doesn't hurt that he is a recreational ultrarunner too.
Read more about Kaiwan N. Billimoria

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