Comment 11 for bug 1668148

Revision history for this message
Ɓukasz Zemczak (sil2100) wrote : Re: Warning message when installing in EFI mode to a BIOS disk is horribly confusing

After experimenting with possible scenarios with the current partman-efi (2 systems on kvm - first one installed in BIOS mode, second in UEFI), I currently propose two courses of action:

1) Removing the warning prompt completely and always continuing in UEFI mode. During my testing on bionic it seemed that there was no risk in continuing in UEFI mode, even when BIOS mode OSes were present they were still bootable and visible in grub. Maybe I missed some test case? What use-case could tempt the user to not continue the install in UEFI since that's the mode we're in right now? Maybe just a warning, without any choices, would be enough?

2) Reformat the warning message and default to continuing in UEFI mode. I'm not an expert here, but to me currently it feels like the more risky solution is to not to force the EFI install. If the system is running in UEFI mode and the user selects 'cancel', in the end he/she will not have a bootable system anymore without switching to BIOS or creating the ESP manually. To me that doesn't sound like a very good default. Or am I misunderstanding something from the testing I did?

I'd generally prefer 1), but I'll defer to people with more experience in UEFI and partman-efi.