Ubuntu 18.04 has MariaDB 10.3 and MySQL 5.7 (https://packages.ubuntu.com/search?suite=all&searchon=names&keywords =mysql-server). The bug report mentions MySQL 8.0. That is a 3rd party package that is not officially in Debian or Ubuntu, so testing such packages or fixing their issues is probably our of scope..
In genera, I don't think that in-place binary upgrade from MySQL 8.0 (released in 2019) to an older MariaDB 10.3 (released in 2018) is even possible. I just tested in a Docker container installing mysql-server-8.0 in Ubuntu Focal, and then attempting to upgrade it to MariaDB 10.3. The mysqld restart fails and the error log will have: 2020-01-09 20:07:08 0 [ERROR] InnoDB: Invalid flags 0x4800 in ./ibdata1 2020-01-09 20:07:08 0 [ERROR] InnoDB: Plugin initialization aborted with error Data structure corruption 2020-01-09 20:07:10 0 [ERROR] Plugin 'InnoDB' init function returned error. 2020-01-09 20:07:10 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 2020-01-09 20:07:10 0 [ERROR] Unknown/unsupported storage engine: InnoDB 2020-01-09 20:07:10 0 [ERROR] Aborting This is kind of natural since older MariaDB 10.3 cannot know what data structures future released (MySQL 8.0) will use.. basically it is a downgrade situation. You need to upgrade to MariadB 10.4 or 10.5, though I have not checked their MySQL 8.0 compatibility. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853817 Title: package mariadb-client-10.3 (not installed) failed to install/upgrade: попытка перезаписать «/usr/bin/mysqldump», который уже имеется в пакете mysql-community-client-core 8.0.18-1ubuntu18.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mariadb-10.3/+bug/1853817/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
