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Date:      Thu, 21 Dec 2023 12:59:54 +0000
From:      Nuno Teixeira <eduardo@freebsd.org>
To:        Dimitry Andric <dim@freebsd.org>
Cc:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Re: symlink to /boot/loader.efi
Message-ID:  <CAFDf7UKxDM1_9DqqHcXZWUc0KYJPfwX0KDn1qzNGQ8GCqU=WqQ@mail.gmail.com>
In-Reply-To: <631DF939-4E18-4319-BE94-335E63B27B09@FreeBSD.org>
References:  <CAFDf7U%2BgTr7D38n9Kh7g4AJh4f0AJ2UVGEDTj5c7ibEBxZZYCQ@mail.gmail.com> <631DF939-4E18-4319-BE94-335E63B27B09@FreeBSD.org>

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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 =C3=A0(=
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
>
>

--=20
Nuno Teixeira
FreeBSD Committer (ports)

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<div dir=3D"ltr"><div>Hello Dimitry,</div><div><br></div><div>For a moment =
I forgot that efiboot is a fat system...</div><div>I am inspired on what in=
stallworld does to kernel and kernel.old.</div><div>I was thinking in somet=
hing like it but with efi boot, something automatic.<br></div><div><br></di=
v><div>Thanks! <br></div></div><br><div class=3D"gmail_quote"><div dir=3D"l=
tr" class=3D"gmail_attr">Dimitry Andric &lt;<a href=3D"mailto:dim@freebsd.o=
rg">dim@freebsd.org</a>&gt; escreveu no dia quinta, 21/12/2023 =C3=A0(s) 12=
:48:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px=
 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 21 Dec 2=
023, at 13:22, Nuno Teixeira &lt;<a href=3D"mailto:eduardo@freebsd.org" tar=
get=3D"_blank">eduardo@freebsd.org</a>&gt; wrote:<br>
&gt; <br>
&gt; On every current upgrade I update efi/freebsd/loader.efi (amd64) and e=
fi/boot/boota64 (aarch64) with new copies on /boot/loader.efi.<br>
&gt; For safety reasons I always have a copy of last running loader by appe=
nding &quot;-old.efi&quot; to loader or boota64 and use beinstall to get BE=
s if needed.<br>
&gt; <br>
&gt; Is that possible to link, e.g., /boot/efi/efi/freebsd/loader.efi -&gt;=
 /boot/loader.efi ?<br>
<br>
Symlinks do not work on FAT file systems, so I assume you mean a symlink pl=
aced in /boot (assuming that is UFS or ZFS), which points to /boot/efi/efi/=
freebsd?<br>
<br>
At the moment I think installworld would not write &#39;through&#39; 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.<br>
<br>
That said, it would be nice to have some sort of semi-official way of upgra=
ding the real EFI loader through installworld. It would probably require so=
me top-level Makefile magic.<br>
<br>
-Dimitry<br>
<br>
</blockquote></div><br clear=3D"all"><br><span class=3D"gmail_signature_pre=
fix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature"><div dir=3D"l=
tr"><span style=3D"color:rgb(102,102,102)">Nuno Teixeira<br>FreeBSD Committ=
er (ports)</span></div></div>

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