Re: Getting /usr/src to match specific git hash?

On Sat, 23 Jan 2021 20:14:03 -0800, Steve Kargl <sgk_at_troutmask.apl.washington.edu> 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
> > 
> 
> Thank you.
> 
> -- 
> Steve
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Can this be put in /usr/src/UPDATING with an explanation of precisely how each
of the git commands populates or repopulated the directories in /usr???