bug#32183: New ‘guix pull’ /root/.config/current/bin/guix: Permission denied

[Pjotr Prins]

Dear Ludo,

If I understand 'guix pull' correctly below should simply not be
possible, right? I mean, once you do a guix pull you have the latest
and the greatest and there should be no interference? Intriguingly
this does not happen on all my systems, just on 2 - notably my laptop
I am using in Southern France ;)

Pj.

On Thu, Sep 06, 2018 at 11:10:33PM +0200, Pjotr Prins wrote:
> On Sun, Sep 02, 2018 at 10:04:32PM +0200, Ludovic Courtès wrote:
> > OK.  Do reopen it if it shows up again.
> 
> Just to report that I did a successful install on one of those
> machines. Starting with a 0.14 guix as root
> 
>   guix pull
> 
> restarted daemon using the new one in /root/.config/current/bin/
> 
> switched to normal user using the guix pointed in that directory
> 
>   /gnu/store/47hhyj0l4nk4na09qx1b66sz1wvpx95i-guix-command pull
> 
> Next I could run 
> 
>   ~/.config/current/bin/guix ...
> 
> everything appeared hunky dory until I need to build a package
> 
>       
> /gnu/store/sf84mb2y5vcykwq9fv02l2nipp34qng2-guix-daemon-0.15.0-3.3d43017/libexec/guix/download:
>  line 8: /root/.config/guix/current/bin/guix: Permission denied
>       
> /gnu/store/sf84mb2y5vcykwq9fv02l2nipp34qng2-guix-daemon-0.15.0-3.3d43017/libexec/guix/download:
>  line 8: exec: /root/.config/guix/current/bin/guix: cannot execute: 
> Permission denied
>       builder for 
> `/gnu/store/2q486ivskp2vm2rq10rs4pq949zkcz8h-evaluate_0.11.tar.gz.drv' failed 
> with exit code 126
>       cannot build derivation 
> `/gnu/store/qaaf8i893x0ivfnw6q19l0rq5gkmlbmj-r-evaluate-0.11.drv': 1 
> dependencies couldn't be built
>       cannot build derivation 
> `/gnu/store/frxjc6iwwflasmj3wcm5s2934mgziaj6-r-fansi-0.3.0.drv': 1 
> dependencies couldn't be built
>       cannot build derivation 
> `/gnu/store/p3d9km0fi423nl66q5ncvkxcnj2kz6bv-r-rsqlite-2.1.1.drv': 1 
> dependencies couldn't be built
>       guix package: error: build failed: build of 
> `/gnu/store/p3d9km0fi423nl66q5ncvkxcnj2kz6bv-r-rsqlite-2.1.1.drv' failed
> 
> Again as root I did another guix pull. It instates the same daemon
> 
>   /root/.config/guix/current/bin/guix-daemon -> 
> /gnu/store/sf84mb2y5vcykwq9fv02l2nipp34qng2-guix-daemon-0.15.0-3.3d43017/bin/guix-daemon
> 
> Now guix pull fails in $USER
> 
>   which guix
>   /home/wrk/.config/guix/current/bin/guix
> 
>   guix pull
> 
>       Updating channel 'guix' from Git repository at 
> 'https://git.savannah.gnu.org/git/guix.git'...
>       Building from this channel:
>               guix      https://git.savannah.gnu.org/git/guix.git   91cc2a3
>       guile: warning: failed to install locale
>       substitute: updating substitutes from 'https://mirror.hydra.gnu.org'... 
> 100.0%
>       substitute: updating substitutes from 'https://mirror.hydra.gnu.org'... 
> 100.0%
>       Downloading 
> https://mirror.hydra.gnu.org/guix/nar/gzip/xw7kc681ivcls1lpp0qy0xljljzd70dr-groff-1.22.3...
>        groff-1.22.3  2.7MiB                                                   
>                 1.2MiB/s 00:02 [##################] 100.0%
> 
>       
> /gnu/store/sf84mb2y5vcykwq9fv02l2nipp34qng2-guix-daemon-0.15.0-3.3d43017/libexec/guix/download:
>  line 8: /root/.config/guix/current/bin/guix: Permission denied
>       
> /gnu/store/sf84mb2y5vcykwq9fv02l2nipp34qng2-guix-daemon-0.15.0-3.3d43017/libexec/guix/download:
>  line 8: exec: /root/.config/guix/current/bin/guix: cannot execute: 
> Permission denied
>       builder for 
> `/gnu/store/24ag580271wa640529ycykdwj0lk0g6z-curl-7.61.1.tar.xz.drv' failed 
> with exit code 126
>       cannot build derivation 
> `/gnu/store/17lw3svpjqygpj739yynyz6b8abddikx-curl-7.61.1.drv': 1 dependencies 
> couldn't be built
>       Backtrace:
>                                               18 (primitive-load 
> "/gnu/store/blfsj798qh4i2pmrcvyaidmsdiz?")
>       In ice-9/eval.scm:
>                       155:9 17 (_ _)
> 
> Can you think of a way of getting out of this loop? What am I doing wrong 
> here?
> 
> Pj.
>