*** This bug is a duplicate of bug 1490071 *** https://bugs.launchpad.net/bugs/1490071
>From the terminal log, it seems you have previously installed MariaDB 10.0: Przygotowywanie do rozpakowania pakietu .../mysql-server-5.7_5.7.12-0ubuntu1_amd64.deb ... Aborting downgrade from (at least) 10.0 to 5.7. If are sure you want to downgrade to 5.7, remove the file /var/lib/mysql/debian-*.flag and try installing again. dpkg: błąd przetwarzania archiwum /var/cache/apt/archives/mysql-server-5.7_5.7.12-0ubuntu1_amd64.deb (--unpack): podproces nowy skrypt pre-installation zwrócił kod błędu 1 You can remove the /var/lib/mysql/debian*.flag file and try again, but since MariaDB and MySQL 5.7 are not really compatible, I suggest making a backup of /var/lib/mysql first. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1587106 Title: package mysql-server-5.7 (not installed) failed to install/upgrade: podproces nowy skrypt pre-installation zwrócił kod błędu 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1587106/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs