it seems that mysql has been upgraded today to ver. 5.7.20-0ubuntu0.16.04.1
I can't start the mysql server since because of InnoDB: When I set
innodb_data_file_path = ibdata1:2M:autoextend
(which I found out should be the correct size) I get the error
[ERROR] InnoDB: Tablespace size must be at least 5 MB
When I set it to
innodb_data_file_path = ibdata1:5M:autoextend
I get the error
InnoDB: The Auto-extending innodb_system data file './ibdata1' is of a different size 128 pages (rounded down to MB) than specified in the .cnf file: initial 320 pages, max 0 (relevant if non-zero) pages!
Do I miss something? How do I get it fixed?