Re: error: %guix-register-program: unbound variable on guix time-machine

[Simon Tournier]

Hi Maxim,

On Wed, 31 May 2023 at 21:15, Maxim Cournoyer <maxim.cournoyer@gmail.com> wrote:
> Hello,
>
> Attempting to navigate to a relatively distant past (Wed Jan 25 23:42:11
> 2017 -0500) with commit 9b9e147117e6009451d7acc1f8f156e041263e32, I hit:

[...]

> Is this expected?  info '(guix) Invoking guix time-machine' does not
> mention of any point "too far" in the past to travel to.

It’s expected.  It’s not possible to travel so far back.  The zero for
time-traveling is the introduction of “inferiors” mechanism around 2019.

Well, since the question is recurrent, I agree that:

 1. the manual needs to be improved;
 2. the command “guix time-machine” should raise a gentle error when the
    specification is unreachable.


Cheers,
simon