Re: A real-life test of long-term reproducibility

[Ludovic Courtès]

Hi,

Ludovic Courtès <ludo@gnu.org> skribis:

> Konrad Hinsen <konrad.hinsen@fastmail.net> skribis:
>
>>   $ guix time-machine --commit=48aa30ce73d45dc5f126f42f01e65f1be4a9b578‘> -- 
>> environment guix
>>   Updating channel 'guix' from Git repository at 
>> 'https://git.savannah.gnu.org/git/guix.git'...
>>   Authenticating channel 'guix', commits 9edb3f6 to 48aa30c (6 new 
>> commits)...
>>   guix time-machine: error: commit
>>   48aa30ce73d45dc5f126f42f01e65f1be4a9b578 is not a descendant of
>>   introductory commit 9edb3f66fd807b096b48283debdcddccfea34bad
>
> Here you would need ‘--allow-downgrades’.

Sorry I replied to quickly; it should have been
‘--disable-authentication’.

Why?  Because here you’re trying to travel to a commit that’s not part
of the “authenticated history”—that is, it’s not a descendant of the
“introductory commit”, which is the first commit in history starting
from which the “authentication invariant” holds.

Hopefully this is clearer; maybe?  :-)

Cheers,
Ludo’.