Subj : uefi
To : Gerrit Kuehn
From : Kai Richter
Date : Mon May 30 2022 02:12 am
Hello Gerrit!
27 May 22, Gerrit Kuehn wrote to Kai Richter:
GK>>> Some manufacturers provide firmware and bios update tools on efi
GK>>> meanwhile. In that case, you can just drop the new firmware and
GK>>> the upgrade tool on a USB stick and use UEFI-shell to run it
GK>>> from there.
KR>> So i have to wait until my BIOS company updates it's tools and i
KR>> can save them within the BIOS.
GK> Sorry, you lost me there.
Ups, i deleted that part. My point was that we have wait for the manufacturers to provide firmware. This does happen out of our control anyway. No matter if uefi or csm - in both cases we have to rely to the manufacturer. My bios does have a flashtool inclueded but i have to format an usb storage device to fat32 and copy the bios to it. I don't see much difference if i dd an image or copy the file. I see the efi partition as somthing like a permanent usb stick.
GK>>> In the MBR-days you would have needed to have a MSDOS-system on
GK>>> the USB stick in addition
KR>> Why DOS? We need to kickstart the boot sequence.
GK> I was talking about updating BIOS or firmware in your system here, not
GK> getting a broken system online again.
Same task, we need to kickstart the boot sequence. The differnce between uefi and csm is the storage location of the whatever starting software.
GK> Updating usually involves some kind of Windows software.
My last one extracted a windows disk imager and copied the image to floppy. Those are self-extraction compressed exes sometimes that can be unzipped or unarj'd to get the real image.
KR>> I'v seen an EFI editor which my bios doesn't have. Now i've to
KR>> check if anyone provides this efi software.
GK> Which software are you looking for?
None. It looked like ee. uefi adds a layer of complexity. If i want to use uefi like a rescue system i can't simply use my known tools from my disk. I think i will stick on my rescue stick in case of trouble because the tools i'm used to are available.
