Hi leyb, Looking in the logs, mysql is failing because it can't obtain a lockfile:
2018-11-13T14:17:06.265515Z 0 [ERROR] InnoDB: Unable to lock ./ibdata1 error: 11 2018-11-13T14:17:06.265584Z 0 [Note] InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files. 2018-11-13T14:17:06.265618Z 0 [Note] InnoDB: Unable to open the first data file 2018-11-13T14:17:06.265652Z 0 [ERROR] InnoDB: Operating system error number 11 in a file operation. 2018-11-13T14:17:06.265673Z 0 [ERROR] InnoDB: Error number 11 means 'Resource temporarily unavailable' 2018-11-13T14:17:06.265687Z 0 [Note] InnoDB: Some operating system error numbers are described at http://dev.mysql.com/doc/refman/5.7/en/operating-system-error-codes.html 2018-11-13T14:17:06.265701Z 0 [ERROR] InnoDB: Cannot open datafile './ibdata1' 2018-11-13T14:17:06.265738Z 0 [ERROR] InnoDB: Could not open or create the system tablespace. If you tried to add new data files to the system tablespace, and it failed here, you should now edit innodb_data_file_path in my.cnf back to what it was, and remove the new ibdata files InnoDB created in this failed attempt. InnoDB only wrote those files full of zeros, but did not yet use them in any way. But be careful: do not remove old data files which contain your precious data! 2018-11-13T14:17:06.265753Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Cannot open a file Please make sure there aren't other instances accessing that file, and that its permissions are correct. Another cause could be an unclean shutdown. ** Changed in: mysql-5.7 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1803141 Title: package mysql-server-5.7 5.7.24-0ubuntu0.18.04.1 failed to install/upgrade: installed mysql-server-5.7 package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1803141/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs