Hello all, I want to install and use MySQL on NixOS, but am not sure how to proceed. I've managed to do
nix-env -iA nixos.mysql55 but trying to get it to run is difficult. Here is what I tried: [月 03 0:50:47] - l_k0 ~/prog/sqfmm/mysql > mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/run/mysqld/mysqld.sock' (2) [月 03 0:50:53] 1 - l_k0 ~/prog/sqfmm/mysql > systemctl start mysqld ==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units === Authentication is required to start 'mysqld.service'. Multiple identities can be used for authentication: 1. System administrator (root) 2. Linus Arver (l) Choose identity to authenticate as (1-2): 2 Password: ==== AUTHENTICATION COMPLETE === Failed to start mysqld.service: Unit mysqld.service not found. [月 03 0:52:33] 5 - l_k0 ~/prog/sqfmm/mysql > systemctl start mysql ==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units === Authentication is required to start 'mysql.service'. Multiple identities can be used for authentication: 1. System administrator (root) 2. Linus Arver (l) Choose identity to authenticate as (1-2): 2 Password: ==== AUTHENTICATION COMPLETE === Failed to start mysql.service: Unit mysql.service not found. [月 03 0:52:57] 5 - l_k0 ~/prog/sqfmm/mysql > mysqld 161003 0:53:16 [Note] mysqld (mysqld 5.5.50) starting as process 12363 ... 161003 0:53:16 [Warning] Can't create test file /var/lib/mysql/k0.lower-test 161003 0:53:16 [Warning] Can't create test file /var/lib/mysql/k0.lower-test mysqld: Can't change dir to '/var/lib/mysql/' (Errcode: 2) 161003 0:53:16 [ERROR] Aborting 161003 0:53:16 [Note] mysqld: Shutdown complete [月 03 0:53:16] 1 - l_k0 ~/prog/sqfmm/mysql > mysqld_safe 161003 00:54:16 mysqld_safe Logging to '/var/lib/mysql/k0.err'. touch: cannot touch '/var/lib/mysql/k0.err': No such file or directory chmod: cannot access '/var/lib/mysql/k0.err': No such file or directory mkdir: cannot create directory ‘/run/mysqld’: Permission denied chown: invalid user: ‘mysql’ chmod: cannot access '/run/mysqld': No such file or directory 161003 00:54:16 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql /home/l/.nix-profile/bin/mysqld_safe: line 128: /var/lib/mysql/k0.err: No such file or directory /home/l/.nix-profile/bin/mysqld_safe: line 165: /var/lib/mysql/k0.err: No such file or directory touch: cannot touch '/var/lib/mysql/k0.err': No such file or directory chown: invalid user: ‘mysql’ chmod: cannot access '/var/lib/mysql/k0.err': No such file or directory 161003 00:54:16 mysqld_safe mysqld from pid file /var/lib/mysql/k0.pid ended /home/l/.nix-profile/bin/mysqld_safe: line 128: /var/lib/mysql/k0.err: No such file or directory The attempt to run *mysqld_safe* was taken from the official docs at http://dev.mysql.com/doc/refman/5.6/en/starting-server.html. I see that there are several configuration options for MySQL (services.mysql.*) defined in the NixOS manual (https://nixos.org/nixos/manual/options.html#opt-services.mysql.enable) but this seems to be for enabling it as a service that starts unconditionally on every boot (configuration.nix), which I want to avoid. How do I start MySQL without touching configuration.nix? If configuration.nix is the only sane/preferred way to use MySQL on NixOS, then is there a resource/wiki/blogpost that discusses a minimal example? I don't mind trial-and-error with editing my system configs but seeing a second-hand account of the entire process would be very helpful. Please forgive me if I have missed any obvious documentation. Best, Linus _______________________________________________ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev