TODO: this guide should be reviewed and updated. Some info might be out of date.
GNU GRUB already has excellent documentation, but there are aspects of Canoeboot that deserve special treatment. Canoeboot provides the option to boot GRUB directly, running on bare metal (instead of using BIOS or UEFI services).
The GNU+Linux section also has canoeboot-specific guides for dealing with GNU+Linux distributions when using GRUB directly, in this setup. A similar section exists for BSD operating systems
It is possible to use any keymap in GRUB.
Keymaps are stored in
You can use the
ckbcomp program to generate a keymap, based on Xorg keymap files:
ckbcomp fr > frazerty
When you build GRUB from source, you can use the
grub-mklayout program to create a special keymap file for GRUB. Learn how to build GRUB
When you’ve built GRUB, using
cbmk (Canoeboot build system), take your kepmap file (generated by ckbcomp) and run it through
grub-mklayout like so:
cat frazerty | ./grub/grub-mklayout -o frazerty.gkb
Place the newly created
.gkb file under
config/grub/keymap in cbmk. When you build Canoeboot, a ROM image with GRUB payload and your newly created keymap will be available under the
bin/ directory. Learn how to build Canoeboot ROM images
Many keymaps exist in the Canoeboot build system, but sometimes you must manually tweak the file created by
ckbcomp, adjusting the scan codes in that file, before converting to a GRUB keymap file. Therefore, it would be unwise to automatically add all keymaps in GRUB.
If you’ve added a keymap to cbmk, and it works, please submit a patch!
Markdown file for this page: https://canoeboot.org/docs/grub/index.md
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