this post was submitted on 22 Jul 2025
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It might. It depends on a lot of stuff.
Microsoft was heavily involved in the making of uefi and secure boot but had heavy resistance from canonical as the early drafts of secure boot would not allow os' to add signing keys to the tpm so a machine would only be able to boot windows.
Thankfully canonical won that debate :')
I definitely have UEFI, not sure about secure boot.
A quick way to know is if youre running custom build kernel, or use mainline on ubuntu based systems, youre not using secure boot.
Those kernels are generally not signed and the cert is not added to the tpm to allow it. Youd have to have gone out of your way to do it, in which youd know secure boot was enabled :p
Thanks! Currently I am using Mint, and it looks like secure boot is disabled.
Thanks for your replies ❤️