On 6/3/25 16:36, Steve Kargl wrote:
On Tue, Jun 03, 2025 at 08:00:00AM -0700, Steve Kargl wrote:
On 6/3/25 02:56, Matthew Seaman wrote:
On 02/06/2025 23:35, Steve Kargl wrote:
How does one use dates to checkout a particular head?
If I'm at the top of HEAD and need to got back to
mid-february, what's the easiest option for performing
a bisection by hand?
Something like:
git checkout 'main@{2025-02-14 12:00:00}'
Or you can say things like:
git checkout 'main@{4 months ago}'
See git-rev-parse(1)
Matthew, Warner, Jamie,
Thanks for the pointer for date-based checkouts.
I've read up a bit on 'git bisect' and it was
not clear to me how to use it. The examples I
saw appeared to be an automated binary search
on a single tree. I fear I may need to revert
src/ and ports/ simultaneously. Using hash
strings would see to be a path to madness.
I've managed to rebuild and re-install world/kernel and gpu-firmware
and drm-515-kmod from git checkout 'main@{2025-03-15 12:00:00}'.
radeonkms.ko loaded as expected and startx brought up the
desktop I was expecting. Onward to next candidate.
Well, out of the frying pan and into the fire...
Apparently, building world with old src/ on a system
running a newer world and installing that old world
over the new world is bad. To start install(1) is
trying to use a non-existent syscall. Yes, I booted
the kernel that matches the old world.
Normally, not a problem. Simply rebuild install(1)
with -static added to CFLAGS. Unfortunately, this
leads to a bunch of linker errors about relocations
and rebuilding a few libraries wtih -fPIC.
--
steve
