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The much maligned "Trusted Computing" idea requires that the party you are supposed to trust deserves to be trusted, and Google is DEFINITELY NOT worthy of being trusted, this is a naked power grab to destroy the open web for Google's ad profits no matter the consequences, this would put heavy surveillance in Google's hands, this would eliminate ad-blocking, this would break any and all accessibility features, this would obliterate any competing platform, this is very much opposed to what the web is.

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[-] zzz@feddit.de 4 points 1 year ago

While I agree in general, and the overall sentiment/direction here to steer towards (morally) is clear… let’s stick to facts only.

you need Apple's blessing to boot anything on a Mac

Bootloader is unlocked and alternative OS exist. Or what else did you mean by that?

[-] jarfil@beehaw.org 0 points 1 year ago

Macs with the T2 could be configured to unlock the bootloader, but from my understanding, the new Apple Silicon Macs (M1, M2) come with the bootloader locked.

[-] zzz@feddit.de 5 points 1 year ago* (last edited 1 year ago)

Your understanding is incorrect, I think.

Apple specifically chose to leave it (or some part of the chain, I don’t actually know, not an expert lol) open, otherwise, a project like Asahi Linux would not have had a chance from the getgo.

I might try to read up on it when I find the time whether they still have to rely on something signed by Apple before being able to take over in the boot process.

[-] jarfil@beehaw.org 2 points 1 year ago* (last edited 1 year ago)

I see.

I was going on the fact that the T2 has a "No Security" option for its Secure Boot config, while according to Apple Support the Apple Silicon ones (I don't have one) only offer "Full" or "Reduced" security, which would still require signing: Change security settings on the startup disk of a Mac with Apple silicon

Dunno how the Asahi folks are planning on doing it, but they do indeed say there is no bootlock 🤔

Update: according to the Asahi docs, I seem to understand that Apple Silicon devices allow creating some sort of "OS containers" that can be chosen to boot from separately from the Mac OS one, and in such a custom container the security can be set to "permissive" limited to that container: https://github.com/AsahiLinux/docs/wiki/Open-OS-Ecosystem-on-Apple-Silicon-Macs Interesting.

[-] zzz@feddit.de 3 points 1 year ago* (last edited 1 year ago)

Interesting.

Yep, that’s a fitting term. You definitely still have to rely on macOS (and keep a copy of it around, e.g. for firmware upgrades, which of course basically only come bundled with macOS versions), but other than that, you can do more or less what you want to – as long as you’re outside of it.

I quite like this idea though if I’m being honest, normie users get all the hardened security from the regular boot chain without experiencing basically any difference/downsides, while hardware enthusiasts and (Linux) tinkerers still have options open (well, options that you can get if you have a new chip on a rarer architecture with previously no third party OS).

this post was submitted on 21 Jul 2023
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