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Firefox/42.0 SeaMonkey/2.39
Build Identifier: 

The server mysql-community-server-5.7.7 from [server:database] repository does
not start.

Reproducible: Always

Steps to Reproduce:
1. Install repository server:database
2. Install mysql-community-server-5.7.7
3. systemctl start mysql.service
Actual Results:  
Starting with

systemctl start mysql.service

takes several seconds and fails.

Expected Results:  
The server starts and works.

$ systemctl status -l mysql.services shows:

��� mysql.service - MySQL server
   Loaded: loaded (/usr/lib/systemd/system/mysql.service; enabled; vendor
preset: disabled)
   Active: activating (start-post) (Result: exit-code) since Wed 2016-01-06
17:40:41 CET; 21s ago
  Process: 7981 ExecStart=/usr/lib/mysql/mysql-systemd-helper start default
(code=exited, status=1/FAILURE)
  Process: 7972 ExecStartPre=/usr/lib/mysql/mysql-systemd-helper upgrade
default (code=exited, status=0/SUCCESS)
  Process: 7965 ExecStartPre=/usr/lib/mysql/mysql-systemd-helper install
default (code=exited, status=0/SUCCESS)
 Main PID: 7981 (code=exited, status=1/FAILURE);         : 7982
(mysql-systemd-h)
   CGroup: /system.slice/mysql.service
           ������control
             ������7982 /bin/bash /usr/lib/mysql/mysql-systemd-helper wait default
             ������8048 sleep 1

Jan 06 17:40:41 mybox mysql-systemd-helper[7972]: my_print_defaults: [ERROR]
unknown option '--mysqld'
Jan 06 17:40:41 mybox mysql-systemd-helper[7982]: my_print_defaults: [ERROR]
unknown option '--mysqld'
Jan 06 17:40:41 mybox mysql-systemd-helper[7981]: my_print_defaults: [ERROR]
unknown option '--mysqld'
Jan 06 17:40:41 mybox mysql-systemd-helper[7982]: Waiting for MySQL to start
Jan 06 17:40:41 mybox mysql-systemd-helper[7981]: 2016-01-06T16:40:41.431067Z 0
[Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use
--explicit_defaults_for_timestamp server option (see documentation for more
details).
Jan 06 17:40:41 mybox mysql-systemd-helper[7981]: 2016-01-06T16:40:41.431478Z 0
[Warning] 'NO_AUTO_CREATE_USER' sql mode is not set. It will be made read-only
in a future release.
Jan 06 17:40:41 mybox mysql-systemd-helper[7981]: 2016-01-06T16:40:41.431741Z 0
[Warning] Failed to normalize the argument for --secure-file-priv.
Jan 06 17:40:41 mybox mysql-systemd-helper[7981]: 2016-01-06T16:40:41.432004Z 0
[ERROR] Aborting
Jan 06 17:40:41 mybox mysql-systemd-helper[7981]: 2016-01-06T16:40:41.432263Z 0
[Note] Binlog end
Jan 06 17:40:41 mybox systemd[1]: mysql.service: Main process exited,
code=exited, status=1/FAILURE