Hey, > * A new issue I discovered, whereby 'guix system init' try to > build/download stuff, when it shouldn't: > > Jun 6 11:50:06 localhost shepherd[1]: Service cow-store has been started. > Jun 6 11:50:06 localhost installer[233]: running command ("guix" "system" "init" "--fallback" "--no-grafts" "--no-substitutes" "/mnt/etc/config.scm" "/mnt") > Jun 6 11:50:20 localhost installer[233]: 'guix system init --fallback --no-grafts --no-substitutes /mnt/etc/config.scm /mnt' exited with status 1; output follows: The following derivations will be bu) > > Jun 6 11:50:20 localhost 7-gzip-mesboot-1.2.4.drv /gnu/store/zrqjn3p0x5gkdnj6qb4b9xxl2dld4fvl-gzip-1.2.4.tar.drv /gnu/store/98g8d622pqhzl0z92y4bjcqi9yl0327x-linux-libre-headers-bootstrap-0.drv2 > Jun 6 11:50:20 localhost g76sla-bash-mesboot-4.4.drv /gnu/store/8yad2zhh91pnf27xkwh0kyx4ggnsn5li-bash-4.4.tar.gz.drv /gnu/store/5vp07s0gdvrybbhcz43i58y5p03rrdsk-coreutils-mesboot-8.32.drv k > Jun 6 11:50:20 localhost h6mfp7hisj118ndcp8d0wy3ca63-gmp-6.0.0a.tar.xz.drv /gnu/store/iy7vn17sqbrgp2142px897ij0njsr5f2-gmp-6.0.0a.tar.xz.drv /gnu/store/rxr1wc67y74bsfasln4jw8viawpa79g4-mpfr-4.0 > Jun 6 11:50:20 localhost ilding /gnu/store/3pz8g76l2kkv36w1n7k25zlswgdyj554-Python-3.5.9.tar.xz.drv... builder for `/gnu/store/3pz8g76l2kkv36w1n7k25zlswgdyj554-Python-3.5.9.tar.xz.drv' failed to produg > Jun 6 11:50:20 localhost Ok, I think I found what's going on here. As we are now using multiple glibc to build locales, we need to make sure that they are all available in the installation closure. The attached patch fixes the issue. I will also propose a patch, probably on core-update, patching "invoke/quiet" so that we can have the output of "guix system init" in the syslog. Debugging (gnu tests install) module always takes me a lot of effort, because of all the code layers involved. I don't have much to propose to improve it, maybe when the CI will be more robust, we will be able to detect those test failures as soon as they happen. Now, the cow-store issue! Thanks, Mathieu