Re: EFI partition - some questions
On Wed, 22 Jan 2025 14:20:22 +0100
Hans <hans.ullrich@loop.de> wrote:
> Hi folks,
>
> I am using UEFI now for the first time. Everything is worḱing fine,
> but I do not understand everything.
That's alright, nobody else does either.
> Please allow me to ask:
>
> 1. In /etc/fstab there is my entry
> UUID=5ABD-D634 /boot/efi vfat umask=0077 0 1
Looks about normal.
>
> and df -h shows
>
> /dev/nvme0n1p1 96M 32M 65M 33% /boot/efi
>
> which is correct so far.
So far, so good. However, please show us the complete command and
output by copy and paste. E.g.:
root@peregrine:~# grep efi /etc/fstab
# /boot/efi was on /dev/nvme0n1p1 during installation
UUID=91AE-3A24 /boot/efi vfat umask=0077 0 1
root@peregrine:~# df -h /boot/efi/
Filesystem Size Used Avail Use% Mounted on
/dev/nvme0n1p1 93M 5.9M 87M 7% /boot/efi
root@peregrine:~#
For example, the output I show confirms that the correct partition is
mounted on /boot/efi.
> But I also find the directory
>
> /efi
>
> which has the same content as /boot/efi. It shows, both are the same.
"It shows" ??? What shows? How?
>
> Questions:
> 1. Is the folder /efi correct and who is creating it?
I have no idea whether it is correct or not. I can tell you that I have
several UEFI machines here and not one of them shows it.
How did you install your system? Which distribution? I used a Debian
netinst installer to install all of mine. You didn't tell us what
distribution of Linux your are using; for all I know you are using some
distribution that creates /efi for you.
>
> 2. If not, how can I get rid of it?
That depends on what it is. If it is a regular directory, then "rm -r
/efi" should do it. However, if your EFI partition is also mounted on
/efi, or /efi is a symbolic or hard link to /boot/efi, that would be
catastrophic.
>
> 3. Which packages of debian must I install, to automate all settings
> of UEFI during grub-install or update-grub. I read of grub-efi,
> grub-efi-amd64, grub-efi-amd64-bin and grub-efi-amd64- signed. But
> which one I should install to get no pain. At the moment only
> grub-efi-amd64-bin and grub-efi-amd64-signed and of course
> grub2-common are installed. Do I need more?
Probably not. If you used a Debian 12 (bookworm) netinst installer, you
should have everything you need. For most people, grub and efi are
"fire and forget" systems: the system is set up once and runs
automatically as needed.
>
> Thanks for enlightening me!
>
> Best
>
> Hans
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