Subj : uefi
To : Kai Richter
From : Gerrit Kuehn
Date : Fri May 27 2022 04:18 pm
Hello Kai!
27 May 22 13:13, Kai Richter wrote to Gerrit Kuehn:
GK>> I talked about cases where something is broken and your system
GK>> doesn't boot (maybe not even the bootmanager comes up). With MBR this
GK>> means reconfiguring BIOS boot order,
KR> You have to enter the uefi shell by the same way: Dive into the BIOS
KR> and select it. If the system doesn't boot the boot override function
KR> is essential.
No, the default config of a BIOS usually is to come up with EFI shell if everything else fails.
KR> I couldn't. The, no, my uefi shell is not self explaining. I failed
KR> to start a running system from the uefi shell. Well, ok, my fault.
Yes, that's the part that took me some time, too. ;)
However, the basic things are not that hard once you find out how it works.
GK>> Some manufacturers provide firmware and bios update tools on efi
GK>> meanwhile. In that case, you can just drop the new firmware and the
GK>> upgrade tool on a USB stick and use UEFI-shell to run it from there.
KR> So i have to wait until my BIOS company updates it's tools and i can
KR> save them within the BIOS.
?
Sorry, you lost me there.
GK>> In the MBR-days you would have needed to have a MSDOS-system on the
GK>> USB stick in addition
KR> Why DOS? We need to kickstart the boot sequence.
I was talking about updating BIOS or firmware in your system here, not getting a broken system online again. Updating usually involves some kind of Windows software. As I don't use Windows, this doesn't help me. The fallback option usually is something DOS-based (if it exists), but this requires some extra steps. Having a EFI-based update tool is less of a hassle.
KR> I'v seen an EFI editor which my bios doesn't have. Now i've to check
KR> if anyone provides this efi software.
Which software are you looking for? Most things can be set up with efibootmgr under Linux (or FreeBSD).
