Locking the bootloader (sh.itjust.works)

submitted 3 days ago by med@sh.itjust.works to c/postmarketos@lemmy.world

9 comments fedilink hide all child comments

I've been looking through the documentation and installation guides for PostmarketOS, and I've noticed there seems to be no mention of locking the bootloader after flashing.

Is that because there's no issue with doing so, or because you can't?

I'm looking at installing on a Fairphone 5, but anyone with any device that's able to share their experience would be appreciated.

you are viewing a single comment's thread
view the rest of the comments

[-] med@sh.itjust.works 1 points 2 days ago

After installing a different os? So if I installed PostmarketOS, could I lock the bootloader? After looking in to it more, it seems like a pretty clear no.

[-] erebion@news.erebion.eu 2 points 2 days ago

postmarketOS does not seem to have implemented Android Verified Boot yet and I am not aware of Linux distros that do it.

Have a look at iodéOS, CalyxOS, GrapheneOS if you want that, at least for now.

[-] med@sh.itjust.works 1 points 13 hours ago* (last edited 13 hours ago)

I have Graphene, and I'll be sticking with it for now.

I think my next step will have to be getting involved with implementing verified boot, because unless every phone suddenly starts shipping with TPMs and open bootloaders, I won't ever be able to switch.

Finding a starting point is half the battle I guess!

[-] erebion@news.erebion.eu 2 points 12 hours ago

There's definitely enough to do, so if you want to contribute in that area, it'd be MUCH appreciated. :)

this post was submitted on 08 Apr 2026

15 points (100.0% liked)

postmarketOS

213 readers

7 users here now

postmarketOS - a real Linux distribution for phones and other mobile devices 🐧 📱 👩‍💻

Rules:

Be nice, follow CoC
Don’t ask for device ports, consider DIY
Report bugs in the issue tracker (not here! 🐛)