MYSQL Does Not Start

Question

Hello!

I previously migrated my database from one directory to another within the server itself (/var/ to /mnt/) for lack of space.

Only that when starting the server again, after having changed the /etc/my.cnf with the correct directory it returns me this error:

$ systemctl start mysqld

Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.

And when executing systemctl status command in the mysqld service it returns me:

$ systemctl status mysqld.service

mysqld.service - MySQL Server
   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Ter 2019-07-16 09:34:44 -03; 44s ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
  Process: 31923 ExecStart=/usr/sbin/mysqld $MYSQLD_OPTS (code=exited, status=1/FAILURE)
  Process: 31899 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
 Main PID: 31923 (code=exited, status=1/FAILURE)
   Status: "SERVER_BOOTING"
    Error: 13 (Permissão negada)

Jul 16 09:34:43 srvepl.cettro.local systemd[1]: Starting MySQL Server...
Jul 16 09:34:44 srvepl.cettro.local systemd[1]: mysqld.service: main process exited, code=exited, status=1/FAILURE
Jul 16 09:34:44 srvepl.cettro.local systemd[1]: Failed to start MySQL Server.
Jul 16 09:34:44 srvepl.cettro.local systemd[1]: Unit mysqld.service entered failed state.
Jul 16 09:34:44 srvepl.cettro.local systemd[1]: mysqld.service failed.

If it is permission error, how do I release the server to accept such directory?

Obs: I’m using the Centos 7

Thank you!!

Answer 1

Talk, you guys!

I was able to solve the problem... It seems that SELINUX was blocking the initiation, creating some kind of restriction.

For those who have the same problem just use:

$ setenforce 0

Thanks!!