I have read this https://www.gnu.org/software/guix/blog/2018/multi-dimensional-transactions-and-rollbacks-oh-my/ <https://www.gnu.org/software/guix/blog/2018/multi-dimensional-transactions-and-rollbacks-oh-my/>
As described in blog, package definitions have tight coupling with package manager version. Because of this I can install older version Icecat-62 only from guix-0.15.0, but cannot install it from guix-0.16.0, cause guix-0.16.0 has only one package definition of Icecat-63: $ guix package --show=icecat name: icecat version: 60.3.0-gnu1... The guix-0.15.0 has Icecat-62: $ /gnu/store/mfvjx6s8knbh8xn5gsxa92aqisg7v1dp-profile/bin/guix package --show=icecat name: icecat version: 60.2.0-gnu1 I have 2 question: - Why older version of guix can work with guix-daemon newer version? Can there be any conflicts? How does it work exactly? The second question concerns guix-daemon in my system. I've discovered I still have guix-daemon-0.15.0 working process despite I've made `guix pull` from root and non-root user and using guix-0.16.0: # ps -ef | grep guix-daemon root 293 1 0 19:00 ? 00:00:00 /gnu/store/mmdk0hia4j0blrzclyv9nrlz57g3lbv7-guix-0.15.0-8.71a78ba/bin/guix-daemon --build-users-group guixbuild --max-silent-time 0 --timeout 0 --log-compression bzip2 --substitute-urls https://mirror.hydra.gnu.org <https://mirror.hydra.gnu.org> root 2046 293 0 20:26 ? 00:00:07 /gnu/store/mmdk0hia4j0blrzclyv9nrlz57g3lbv7-guix-0.15.0-8.71a78ba/bin/guix-daemon 2040 guixbuild --max-silent-time 0 --timeout 0 --log-compression bzip2 --substitute-urls https://mirror.hydra.gnu.org <https://mirror.hydra.gnu.org> root 3307 2054 0 20:58 pts/3 00:00:00 grep --color=auto guix-daemon # guix --version guix (GNU Guix) 402c36c1d6299e0d916f4e96ef5bf47efcd4e330 Copyright (C) 2018 the Guix authors License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html <http://gnu.org/licenses/gpl.html>> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. # guix describe Generation 65 Dec 31 2018 10:59:36 (current) guix 402c36c repository URL: https://git.savannah.gnu.org/git/guix.git <https://git.savannah.gnu.org/git/guix.git> branch: master commit: 402c36c1d6299e0d916f4e96ef5bf47efcd4e330 # guix package --show=guix name: guix version: 0.16.0-8.7ba2b27 outputs: out systems: x86_64-linux i686-linux armhf-linux aarch64-linux mips64el-linux... - Why guix-daemon is still 0.15.0 while as root user has guix-0.16.0? How to upgrade it? Do I need something like `guix system upgrade`? - Manual has no such option.
