If you still have guix in the store you can use the store path to reach and run it.
As I had something similar today that there was no recent guix... I actually restored with a slightly older 'guix pack' from a different machine. https://www.gnu.org/software/guix/news/creating-bundles-with-guix-pack.html You have to use an older version that does not get overwritten by a new Guix. Otherwise the update will fail dramatically. It happened to me first time :) Alternatively you can unpack the store part of the binary install and use that. Again, make sure you are not reinstalling the exact same version. If you still have a working guix you should use 'guix archive'. Many options. Pj. On Tue, May 16, 2017 at 04:03:19PM +0200, julien lepiller wrote: > Le 2017-05-16 15:11, Konrad Hinsen a ??crit??: > >On 16/05/2017 15:02, Konrad Hinsen wrote: > > > >>I ended up rolling back until my profile no longer contained "guix" (I > >>have no idea how I could ever produce such a profile), so now I am > >>completely stuck. Any idea for getting out of this mess?