GNU bug report logs - #30312
documentation: misleading EFI partitioning instructions

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From: Gábor Boskovits <boskovits <at> gmail.com>
To: Ricardo Wurmus <ricardo.wurmus <at> mdc-berlin.de>
Cc: 30312 <at> debbugs.gnu.org
Subject: bug#30312: documentation: misleading EFI partitioning instructions
Date: Thu, 1 Feb 2018 10:13:30 +0100

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2018-01-31 20:01 GMT+01:00 Ricardo Wurmus <ricardo.wurmus <at> mdc-berlin.de>:

> The manual section “Preparing for Installation: Disk Partitioning” says
> this:
>
> --8<---------------cut here---------------start------------->8---
>    If your disk uses the GUID Partition Table (GPT) format and you plan
> to install BIOS-based GRUB (which is the default), make sure a BIOS Boot
> Partition is available (*note (grub)BIOS installation::).
>
>    If you instead wish to use EFI-based GRUB, a FAT32 “EFI System
> Partition” (ESP) is required.  This partition should be mounted at
> ‘/boot/efi’ and must have the ‘esp’ flag set.  E.g., for ‘parted’:
>
>      parted /dev/sda set 1 esp on
>
>    Once you are done partitioning the target hard disk drive, you have
> to create a file system on the relevant partition(s)(1).  For the ESP,
> if you have one and assuming it is ‘/dev/sda2’, run:
>
>      mkfs.fat -F32 /dev/sda2
> --8<---------------cut here---------------end--------------->8---
>
> First, this sounds like it’s up to the user to pick either EFI-based
> GRUB or BIOS-based GRUB.  It is not clear that this is determined by
> whether the machine has a {BIOS, EFI in legacy mode} or EFI.  It’s
> really not much of a choice.
>
> Second, the “parted” command operates on the first partition (“1”), yet
> for the second command the second partition (“/dev/sda2”) is used.  It’s
> better to be consistent here, i.e. to change “set 1 esp on” to “set 2
> esp on” and to state that this would modify “/dev/sda2”.
>
> Finally, it is not clear where the efi partition should be mounted.
> Should it be /mnt/boot/efi?  If so, should the configuration file
> specify “/mnt/boot/efi” as the target?  Or should it be “/boot/efi”?
>
> An example would be useful here.
>
> I agree an example would be nice.
I will have a look at this when I have time.
I guess I had done something similar.



> --
> Ricardo
>
>
>
>

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