Re: kern.version and uname -v

I personally feel that building releases reproducibly is quite important. How can we trust the current 14.0-RELEASE images? Would be nice to be able to build them locally and know they are the same.

What do we need to do to make sure that 14.1-RELEASE is built reproducibly?

Thanks!

PS: It looks like freebsd-reproducibility@ may have some issues?


Jan 9, 2024, 03:29 by imp@bsdimp.com:

>
>
> On Mon, Jan 8, 2024 at 7:17 PM Eugene Grosbein <> eugen@grosbein.net> > wrote:
>
>> 09.01.2024 4:16, Warner Losh wrote:
>>
>> > On Mon, Jan 8, 2024 at 1:58 PM Eugene Grosbein <>> eugen@grosbein.net>>  <mailto:>> eugen@grosbein.net>> >> wrote:
>> >     For ages, "uname -v" output (sligtly polished sysctl kern.version) had the following format:
>> >     $ uname -v
>> >     FreeBSD 13.2-STABLE 36a037f15 KERNELIDENT
>> >
>> > This is the reproducible format: only include data that is identical from build to build. It's relatively recent (FreeBSD 11 maybe)
>> >
>> >     Where KERNELIDENT is GENERIC for x86 distribution media.
>> >
>> >     But now:
>> >
>> >     # uname -v
>> >     FreeBSD 14.0-RELEASE #0 releng/14.0-n265380-f9716eee8ab4: Fri Nov 10 05:51:26 UTC 2023     root@releng1.nyi.freebsd.org:/usr/obj/usr/src/i386.i386/sys/GENERIC
>> >
>> > This is the old, non-reproducible format. We've had both formats for several major releases, and this format, with various tweaks as we went from CVS -> svn -> git.
>> >
>> > Maybe the problem here is that in the run up to 14.0 we didn't turn on reproducible builds?
>>
>> You meant opposite, did you?
>>
>
> I don't think so. The quoted value is the old WITHOUT_REPRODUCIBLE_BUILDS format. We forgot to turn on WITH_REPRODUCIBLE_BUILDS in the branch before the release.
>
> Warner
>