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submitted 1 year ago* (last edited 1 year ago) by TiffyBelle@feddit.uk to c/linux@lemmy.ml

Been down the rabbit hole lately of UEFI Secure Boot issues, and decided to write an overview of how it works out-of-the-box in the excellent Debian-based Linux Mint LMDE 6.

Have mostly been researching this stuff as I was looking to replace GRUB entirely with systemd-boot on one of my systems. Will likely write a follow-up piece documenting that journey if I think it'd be interesting to some nerds out there.

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[-] witx@lemmy.sdf.org 0 points 1 year ago

The EFI binary is signed by a private key, whose public key signature is present in the trusted Signature Database (db).

Shouldn't it be the opposite? i.e signed by a public key?

[-] Hugin@lemmy.world 10 points 1 year ago

Nope. You sign with the private key and verify with the public key. Basically you use the private key to do stuff only you should be able to do and the public key is used by the public to verify it was you who did it.

this post was submitted on 13 Oct 2023
205 points (99.5% liked)

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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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