Re: booting by UEFI?
On Sun 29 Dec 2024 at 13:17:57 (-0500), Cindy Sue Causey wrote:
> Top big must-have *for me* was a dedicated partition for EFI.
That's true if you're booting in EFI mode. It's not clear whether
the OP is.
> Somewhere
> I read that HAS to be an extremely early partition on the hard drive.
> Today I learned it can be anywhere so the problems I had years ago were
> NOT due to that. [0]
It has to be early enough for the firmware to be able to read it.
That's a property of the computer, so it may be that your problem
of years ago was caused by the computer of years ago. What you
learned today is likely to be true for the computers of today, not
every computer. The old ones will still have their limitations.
> Additionally, until now I've always had an MBR partition at the front of
> my hard drives. Thanks to your question, I've just now learned that is
> NOT recommended and might cause compatibility issues, too. [1] Each User
> has to decide what to do there based on what their multiple operating
> systems demand for booting. I simply reformatted mine as EXT4 (for now).
I don't know what you mean by an "MBR partition". Assuming from what
you write below that you boot in EFI mode, can you tell us the type
of disk partition table (MBR or GPT), and perhaps what's in this
partition of yours that you reformatted as ext4. That might allow us
to know what you mean.
> My UEFI partition is formatted as FAT32 then I manually verify that it's
> flagged as msftdata. I use Gparted that is being a tiny bit unpredictble
> if left on its own to perform that function.
Why not set it to EF00 (EFI System) on a GPT disk, or EF (EFI FAT-12/16/32)
on an MBR disk?
> My /etc/fstab mounts EFI partition to Debian and GRUB's default
> /boot/efi hierarchy. The "type" (third declaration on EFI's fstab line)
> is "vfat".
[ … ]
> [0] https://superuser.com/questions/1834990/how-do-i-rearrange-a-wrong-order-of-efi-and-boot-partitions
> [1] https://superuser.com/questions/739153/uefi-with-mbr-partition-table
Cheers,
David.
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