re-add notes about fedora bls

This commit is contained in:
Leah Rowe 2021-07-24 22:27:52 +01:00
parent 29197a9c9e
commit 25935d6477
1 changed files with 36 additions and 1 deletions

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@ -28,7 +28,7 @@ Refer to the following pages:
* [How to Harden Your GRUB Configuration, for Security](grub_hardening.md) * [How to Harden Your GRUB Configuration, for Security](grub_hardening.md)
Guix, Parabola, Trisquel Guix, Parabola, Trisquel
------------------------ ========================
These guides were outdated, so they were deleted. You can find links to them These guides were outdated, so they were deleted. You can find links to them
here: <https://notabug.org/libreboot/lbwww/issues/4> here: <https://notabug.org/libreboot/lbwww/issues/4>
@ -65,3 +65,38 @@ command line paramter. So append `sysrq_always_enabled=1` to your
`GRUB_CMDLINE_LINUX_DEFAULT` in `/etc/default/grub` `GRUB_CMDLINE_LINUX_DEFAULT` in `/etc/default/grub`
You can also run `# sysctl kernel.sysrq=1` to enable them. You can also run `# sysctl kernel.sysrq=1` to enable them.
Fedora won't boot?
==================
This may also apply to CentOS or Redhat. Chroot guide can be found on
[fedora website](https://docs.fedoraproject.org/en-US/quick-docs/bootloading-with-grub2/#restoring-bootloader-using-live-disk)
linux16 issue
-------------
When you use Libreboot's default GRUB config, and libreboot's grub uses fedora's
default `grub.cfg` (in `/boot/grub2/grub.cfg`), fedora by default makes use of the
`linux16` command, whereas it should be saying `linux`
Do this in fedora:
Open `/etc/grub.d/10_linux`
Set the `sixteenbit` variable to an empty string, then run:
grub2-mkconfig -o /boot/grub2/grub.cfg
BLS issue
---------
With [newer versions of fedora](https://fedoraproject.org/wiki/Changes/BootLoaderSpecByDefault),
scripts from grub package default to generating [BLS](https://www.freedesktop.org/wiki/Specifications/BootLoaderSpec/)
instead of `grub.cfg`. To change that behaviour add following line
to `/etc/default/grub` (or modify existing one if it already exists):
GRUB_ENABLE_BLSCFG=false
Then generate `grub.cfg` with:
grub2-mkconfig -o /boot/grub2/grub.cfg