diff options
| author | Bill XIE <persmule@hardenedlinux.org> | 2022-01-01 11:56:00 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-05-24 12:58:52 +0000 |
| commit | 3dda4dad1d3add373e2cc7d0c47badecf851eaa2 (patch) | |
| tree | bda254df3eed484d088f2e9d3288add18b784ea1 /Documentation | |
| parent | 26e0b9461405a26eda786eeffd617253f76692a3 (diff) | |
payloads/external: Add more option related to SeaBIOS and GRUB2
Also known as "SeaGRUB", running GRUB2 atop SeaBIOS proves to be a
useful configuration, since SeaBIOS has improved its hardware
compatibility. For example, some USB drive can work under SeaBIOS but
do not work under native GRUB2, and GRUB2 can use BIOS call (provided
by SeaBIOS) as a fallback method to access hardware if it is present.
But more option is added addition to "SeaGRUB": now GRUB2 and SeaBIOS
can be built as secondary payloads, and "SeaGRUB" is now implemented
as "Primary SeaBIOS + Secondary GRUB2 (selected) + config files".
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Change-Id: Ie681fa231abfe4a8f1e4510b3c17957550a9d2f8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60640
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/payloads.md | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/Documentation/payloads.md b/Documentation/payloads.md index 7f4c08c202..e34289c91d 100644 --- a/Documentation/payloads.md +++ b/Documentation/payloads.md @@ -13,7 +13,15 @@ payload or can be made to work as one. the PCBIOS API that exists since the original IBM PC and was extended since. While originally written for emulators such as QEMU, it can be made to work as a coreboot payload and all the necessary code is in SeaBIOS' -mainline code. +mainline code, or as a secondary payload load by another payload, e.g. it +can be loaded from GRUB2 with the following menuentry in the run time +config of GRUB2: + + menuentry "SeaBIOS" --unrestricted { + root=(cbfsdisk) + multiboot /img/seabios + module /vgaroms/seavgabios.bin + } ## Tianocore @@ -51,4 +59,4 @@ updates, but only works on a limited amount of mainboards. For more details have a look at [heads-wiki]. [Heads]: https://github.com/osresearch/heads -[heads-wiki]: http://osresearch.net/
\ No newline at end of file +[heads-wiki]: http://osresearch.net/ |