[Bug 263322] Explain when and why to upgrade the bootloader

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 29 Dec 2022 18:08:16 UTC

Graham Perrin <grahamperrin@freebsd.org> changed:

           What    |Removed                     |Added
           Keywords|                            |needs-patch
             Status|New                         |Open
                 CC|                            |grahamperrin@freebsd.org,
                   |                            |imp@FreeBSD.org
              Flags|                            |maintainer-feedback?(imp@Fr
                   |                            |eeBSD.org)

--- Comment #1 from Graham Perrin <grahamperrin@freebsd.org> ---
Some starting points. 


* is too late in the chapter

* offers no precaution with regard to use of gpart (and damage that 
  may ensue). 

Compare with <https://www.freebsd.org/releases/13.0R/relnotes/#boot>: 

> … To update old ESP partitions, users should stop using the gpart(8) 
> utility. Instead, …

There, the paragraph continues with an architecture-specific example that


includes a more generic (XXX) mention of: 


<https://lists.freebsd.org/archives/freebsd-current/2021-July/000331.html> –
from Warner Losh, re: 'EFI boot partition overwritten' – included memorably
neat guidance.

Elsewhere, probably in an official area, I might have seen more recent,
comparably neat guidance, which (also) takes into account the file system of
the EFI system partition _mounted by default_ (no need to use mount_msdosfs)
with more modern systems. However:

* I struggle to remember where this write-up might have been

– imp@ please, does it ring a bell, any idea where?

(I already tried searching Foundation pages, grepping doc and src …)


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