In this blog post, I want to show you how you can boot your custom (i.e., self developed, non-linux) kernel with GRUB 2 in a legacy x86 boot flow. The tutorial is focused on Linux as build environment. A working example can be found on my GitHub. Introduction When you Read more…
TLDR: for Multiboot2 you use module2 and for Multiboot1 module in GRUB config files. One of my projects of the last months was to build a prototype setup for kernels written in Rust. The kernel is Multiboot2-compliant and boots on x86_64 with UEFI as firmware. To test everything, I create Read more…
TLDR: GRUB can reference internal files via the volume specifier (memdisk), similar to external drives (hd0). GRUB has an undocumented but really convenient feature to include files/images (e.g., bootable kernels) directly into the GRUB installation itself. If you use $ grub-mkstandalone to store GRUB on a USB stick or a Read more…