Hi Blake, I am late to the party. :-)
On jeu., 04 août 2022 at 15:35, bl...@reproduciblemedia.com wrote: > August 4, 2022 8:43 AM, "Konrad Hinsen" <konrad.hin...@fastmail.net> wrote: >> One of our claims is that Guix can rebuild code identically as long as >> we have a machine with a Linux kernel and a POSIX filesystem. This claim is correct, AFAIU. > This actually isn't the claim. Reproducibility is only guaranteed on > Guix systems. It's important that you reproduce the entire system, which > means you will have needed to have saved the commit of your version of > the Guix package manager in order to return to that system. It is possible to rebuild identically on any foreign GNU/Linux distro running the Guix package manager. The assumptions, between the 2 points in time, are: 1. compatibility of the Linux kernel 2. availability of all the source code 3. compatibility of the hardware AFAIK, #1 and #3 are satisfied. About #2, it depends and many corner cases are around. Running Guix System would allow to easily satisfy #1, but, AFAIK, no one reported an incompatibility of the Linux kernel defeating “guix time-machine -- build”, and thus, it appears to me still hypothetical (although possible on the paper) that, in this case, Guix System would still allow the travel back in time. > See the section of the Guix manual "Replicating Guix" for more info. > https://guix.gnu.org/en/manual/devel/en/html_node/Replicating-Guix.html Guix System is not mentioned, IIRC. :-) Cheers, simon
