Searching on the internet, I found the following solution that worked for me: "Today I got the same problem, after trying many solutions i found that the problem was the command sudo systemctl disable mysql.service that i used to disable MySQL auto starting, so to get it working i re-enabled again MySQL server using the command sudo systemctl enable mysql.service and run again the upgrade process and it terminated perfectly."
This is one of the answer provided here: https://askubuntu.com/questions/760724/16-04-upgrade-broke-mysql-server It was because I disabled my mysql server form starting. I have to close this bug? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1685026 Title: package mysql-server-5.7 5.7.17-0ubuntu0.16.04.2 failed to install/upgrade: il sottoprocesso installato script di post- installation ha restituito lo stato di errore 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1685026/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
