this post was submitted on 21 Feb 2026
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Secureboot uses certificates to verify integrity. The user is able to install new certificates. So I'd say it is the user? I'm not an expert though and their may be hardware out there that doesn't allow new certificates.
That's true today, but there's no guarantee it will be true in the future. Google is already pushing for all software running on Android to be cryptographically verified and they (Google) are the only ones that control the signing keys. This means that they intend to kill off F-droid and all other software delivered outside the Google store.
If Google is able to pull it off on Android, everyone else will try to do it on desktop OSes too - Linux included.
AFAIK, the allowing the user to install and remove certificates is a x86_64 thing only, arm will happilly fuck you over, x86_64 UEFI implementations ARE REQUIRED TO add that feature to be spec compliant, this was a intentional decision by Intel and AMD to keep x86_64 open to new OS and not locked down to Windows which could one day be a sinking ship, so that x86_64 would not be at the mercy of Microsoft's success and attachment to the platform
That's right. The user (or administrator if it's a work machine) installs or removes acceptable certificates into firmware database. Typically a device you buy in the past 15 years or so comes with Microsoft certificates preinstalled, but it doesn't have to stay like that.
Can't say it's obvious how to change certificates on my motherboard. Just updated the BIOS and had to turn off SecureBoot so it could boot into my Linux install (MSI B450 Tomahawk Max).
Every bios I've used has 2 sets of certificates built in. The default one is the Microsoft production certificate and the Linux bootloader doesn't match. But their should be another certificate for open source systems that will work.