https://wassimaouadi.com/tags/boot/ Recent content in Boot on Hugo en Sun, 19 Jul 2026 21:31:13 +0200 https://wassimaouadi.com/technotes/linuxbootgrubkernel/ Sun, 19 Jul 2026 21:31:13 +0200 https://wassimaouadi.com/technotes/linuxbootgrubkernel/ <h1 id="locating-grub2">Locating GRUB2</h1> <p>On a BIOS machine, GRUB2 does not exist as a monolithic file. It takes more than one shape and form, depending on the boot stage. The first form of GRUB2 is a binary code on a section on the MBR of a bootable disk. Once the linux firmware locates that form of GRUB2, it loads it in memory. The program then relies on the GRUB2-related files under <em>/boot/</em> and <em>/etc/</em> to respectively load the main image of GRUB2 and read the configuration.</p>