bug#20024: grub store is not copied to target system

[Ludovic Courtès]

address@hidden skribis:

> With guix at revision df81e046c57e5f767738113e4e7a28b212c03d63 I tried
> to deploy Guix to another partition.

Do you mean that you wanted to use a different root partition than the
one that was being used?

> Result system installed Grub into partition but did not copied it's
> store to /gnu/store/ on target partition.

Indeed, ‘guix system reconfigure’ assumes that the root partition
remains the same and does not try to copy the store.

Thanks,
Ludo’.