Package: mysql-server-5.6 Version: 5.6.30-1~bpo8+1 Hi, I just installed mysql-server this way:
# apt-get install -t jessie-backports mysql-server It was a fresh install with no prior mysql-server installation. At startup, the mysql server shutdowns itself printing these messages in /var/log/mysql/error.log: 2016-09-09 17:15:01 7042 [ERROR] Can't find messagefile '/usr/share/mysql/errmsg.sys' 2016-09-09 17:15:02 7042 [ERROR] Aborting It always does that if I start mysql-server the systemd way: root@podocarpe:/root # systemctl start mysql I noticed that it also prints some related warnings in /var/log/mysql/error.log: 2016-09-09 17:34:41 0 [Warning] The syntax '--language/-l' is deprecated and will be removed in a future release. Please use '--lc-messages-dir' instead. I noticed that even if I add some lc-messages-dir explicit parameters, it fails: # cat /etc/mysql/mysql.conf.d/zz_language.cnf [mysqld] lc_messages_dir = /usr/share/mysql/french/ >From /var/log/mysql/error.log: 2016-09-09 17:42:20 13072 [ERROR] Can't find messagefile '/usr/share/mysql/french/errmsg.sys' And of course this file exists. I noticed that if I copy this file to /usr/share/mysql/errmsg.sys and do not use that lc-messages-dir trick, mysqld complains to not being able to find it even if it exists for real (same is I use the english errmsg.sys). I noticed that if I start the server by hand, this way (and even without that lc-messages-dir trick): # /usr/bin/mysqld_safe It works! What is curious is systemd tries to start mysql-server the same way: # grep mysqld_safe /lib/systemd/system/mysql.service ExecStart=/usr/bin/mysqld_safe So, I can start /usr/bin/mysqld_safe by hand on an interactive shell, but systemd can't. So, the current mysql-server package in jessie-backports can't be started by systemd. -- Thomas DEBESSE

