Is there some trick to getting UM to boot under Secure Boot? I am running up-to-date 24.04, with shim-signed installed. When I turned on Secure Boot recently, it would not boot even as far as the grub menu. I thought it was supposed to 'just work'.
Can anyone enlighten me?
TIA...
I'm not sure but I believe that it has to be decided at installation. Either Secure boot or legacy boot. I don't think you can switch back and forth. Maybe someone
else knows for sure.
Thanks for your reply.
I can sort of see offering the option at install time, but I can't imagine not being able to switch it later. In any case, I do not remember being offered any such choice. This is a newish machine, all-UEFI all the time.
Any further insights, anyone?
Yes, read this:
Thanks for the reply.
From the link:
" if secure-boot isn't used at install time, the required secure-boot parts are not installed as they weren't required"
Surely the required secure-boot parts are installable after installation? I really don't want to reinstall Noble just to be able to use SB.
Thanks I knew it was in the bios but thought once you set it to legacy boot and installed it could not be changed. I don't do that I don't want MS controling my boot process.
Solved, by going into EFI settings and resetting SB keys to factory and re-loading MS keys.