Re: symlink to /boot/loader.efi

I am wondering if all the information in this thread present and future should be included in
the scenarios at the bottom of /usr/ports/UPDATING with technical explanations about
how and why? AFAIK the file was created before UEFI and thus in that regard obsolete. 

On Thu, 21 Dec 2023 12:59:54 +0000, Nuno Teixeira <eduardo@freebsd.org> wrote:

> Hello Dimitry,
> 
> For a moment I forgot that efiboot is a fat system...
> I am inspired on what installworld does to kernel and kernel.old.
> I was thinking in something like it but with efi boot, something automatic.
> 
> Thanks!
> 
> Dimitry Andric <dim@freebsd.org> escreveu no dia quinta, 21/12/2023 à(s)
> 12:48:
> 
> > On 21 Dec 2023, at 13:22, Nuno Teixeira <eduardo@freebsd.org> wrote:
> > >
> > > On every current upgrade I update efi/freebsd/loader.efi (amd64) and
> > efi/boot/boota64 (aarch64) with new copies on /boot/loader.efi.
> > > For safety reasons I always have a copy of last running loader by
> > appending "-old.efi" to loader or boota64 and use beinstall to get BEs if
> > needed.
> > >
> > > Is that possible to link, e.g., /boot/efi/efi/freebsd/loader.efi ->
> > /boot/loader.efi ?
> >
> > Symlinks do not work on FAT file systems, so I assume you mean a symlink
> > placed in /boot (assuming that is UFS or ZFS), which points to
> > /boot/efi/efi/freebsd?
> >
> > At the moment I think installworld would not write 'through' such a
> > symlink. In fact, it makes a hard link from /boot/loader_lua.efi to
> > /boot/loader.efi, unlinking any previous /boot/loader.efi.
> >
> > That said, it would be nice to have some sort of semi-official way of
> > upgrading the real EFI loader through installworld. It would probably
> > require some top-level Makefile magic.
> >
> > -Dimitry
> >
> >
> 
> -- 
> Nuno Teixeira
> FreeBSD Committer (ports)