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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Enabling secure boot later on (lemmy.ml)

submitted 1 year ago by [email protected] to c/[email protected]

17 comments fedilink hide all child comments

So, I've installed Manjaro quite while ago, and I let secure boot disabled during installation. Dang! Is there a way to keep (most of) my system and enable secure boot and LUKS after the fact?

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[–] [email protected] 2 points 1 year ago (1 children)

That's a 404 ...

[–] [email protected] 3 points 1 year ago (1 children)

My bad, private repo. Here's the content:

#!/bin/zsh

# 2022.09.26

# Generate
dracut --quiet --zstd --kver 6.0.2-gentoo --filesystems btrfs --early-microcode --uefi --uefi-splash-image $HOME/Nextcloud/Pictures/gentoo.full.height.nvme.bmp --uefi-stub /usr/lib/systemd/boot/efi/linuxx64.efi.stub --no-machineid --stdlog 4 --force --kernel-cmdline "rd.luks=1 rd.lvm=0 rd.md=0 rd.dm=0 rd.fstab=1 root=UUID=f5f8d75d-8aa8-4cea-83f9-3489a92a23e0 rd.luks.key=/luks.key:UUID=8E55-4050 rd.luks.uuid=5f5ab8ff-f1ea-4c09-960a-73f9bf5b7698 rootflags=noatime,discard=async,subvol=@snapshots/root/2022-10-18_102847 rootfstype=btrfs quiet delayacct i915.enable_guc=3"

# Sign
sbsign --key secure-boot/db.key --cert secure-boot/db.crt --output /boot/EFI/Linux/linux-6.0.2-gentoo.signed.efi /boot/EFI/Linux/linux-6.0.2-gentoo.efi

# Change boot order
efibootmgr --create --disk /dev/sdb --loader EFI/Linux/linux-6.0.2-gentoo.signed.efi --label Gentoo-6.0.2-signed --part 3 --verbose

[–] [email protected] 2 points 1 year ago

I have since replaced the hardcoded values with variables, but evidently haven't pushed the changes to gitlab. Having said that - not having variables might make it easier to understand in this case.