This is what I used to test: - disable updates and security in /etc/apt/sources.list - install mysql-server-5.7 (or whatever version is shipped in that release of ubuntu) - use mysql command line to connect and create a test database - stop mysql: sudo systemctl stop mysql - disable mysql: sudo systemctl disable mysql - re-enable updates and security in sources.list - apt dist-upgrade
In bionic, the above worked. During the pkg upgrade, mysql was started up a few times, but at the end of the dist-upgrade command mysql was stopped and no errors were reported. In xenial, it failed: Setting up mysql-server-5.7 (5.7.24-0ubuntu0.16.04.1) ... Installing new version of config file /etc/mysql/debian-start ... Renaming removed key_buffer and myisam-recover options (if present) insserv: warning: current start runlevel(s) (empty) of script `mysql' overrides LSB defaults (2 3 4 5). insserv: warning: current stop runlevel(s) (0 1 2 3 4 5 6) of script `mysql' overrides LSB defaults (0 1 6). mysql_upgrade: Got error: 2002: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) while connecting to the MySQL server Upgrade process encountered error and will not continue. mysql_upgrade failed with exit status 11 dpkg: error processing package mysql-server-5.7 (--configure): subprocess installed post-installation script returned error exit status 1 Setting up distro-info-data (0.28ubuntu0.9) ... Setting up libcurl3-gnutls:amd64 (7.47.0-1ubuntu2.11) ... Setting up curl (7.47.0-1ubuntu2.11) ... Processing triggers for libc-bin (2.23-0ubuntu10) ... Errors were encountered while processing: mysql-server-5.7 E: Sub-process /usr/bin/dpkg returned an error code (1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745185 Title: If apt-get upgrade is run on mysql server when the server is disabled, the upgrade fails. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1745185/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
