Getting /usr/src to match specific git hash?

[Warner Losh]

On Mon, Jan 25, 2021 at 3:57 PM tech-lists <tech-lists at zyxst.net> wrote:

> On Sun, Jan 24, 2021 at 01:08:05PM +0900, Yasuhiro Kimura wrote:
> >From: Steve Kargl <sgk at troutmask.apl.washington.edu>
> >Subject: Getting /usr/src to match specific git hash?
> >Date: Sat, 23 Jan 2021 19:58:52 -0800
> >
> >> Suppose one has an empty /usr/src.
> >>
> >> Suppose further that one had to re-install a 32-bit
> >> i386-*-freebsd with the 24 Dec 2020 image available
> >> from freebsd.org.
> >>
> >> uname -a for the booted kernel shows
> >>
> >> % uname -a
> >> FreeBSD mobile 13.0-CURRENT FreeBSD 13.0-CURRENT #0 \
> >> 3cc0c0d66a0-c255241(main)-dirty: Thu Dec 24 05:43:23 UTC 2020 \
> >> root at releng1.nyi.freebsd.org:/usr/obj/usr/src/i386.i386/sys/GENERIC
> i386
> >>
> >> How does one use git to pull the exact sources that match
> >> this specifc kernel?
> >
> >cd /usr
> >git clone https://git.freebsd.org/src.git
> >cd src
> >git checkout 3cc0c0d66a0
>
> I have the exact same issue. The installation I have is:
>
> 13.0-CURRENT #0 2ed50808d2b-c254384(main): Thu Nov 12 10:03:35 UTC 2020
>
> The method described doesn't work for me for some reason:
>
> [...]
> root at rpi4:/usr # git clone https://git.freebsd.org/src.git
> Cloning into 'src'...
> remote: Enumerating objects: 377505, done.
> remote: Counting objects: 100% (377505/377505), done.
> remote: Compressing objects: 100% (26583/26583), done.
> remote: Total 3831969 (delta 371848), reused 350922 (delta 350922),
> pack-reused 3454464
> Receiving objects: 100% (3831969/3831969), 1.14 GiB | 6.28 MiB/s, done.
> Resolving deltas: 100% (3034679/3034679), done.
> Updating files: 100% (85162/85162), done.
> root at rpi4:/usr # cd src
> root at rpi4:/usr/src # git checkout 2ed50808d2b
> error: pathspec '2ed50808d2b' did not match any file(s) known to git
>

For the archives, this is because this hash is from the old beta hashes
that we got rid of. there's another thread that has all the details.

Warner