MySQL 8.0.13 systemctl start throws error 13

[Vince Garner]

Sorry for the long post, but I wanted to get all the necessary information.

When I do a sudo systemctl start mysqld.service it generates and error 13 in the error log.

/var/log/mysqld.log
mysqld: File './binlog.index' not found (OS errno 13 - Permission denied)
2019-05-06T22:50:26.608886Z 0 [Warning] [MY-010091] [Server] Can't create test file /data/mysql/hsvsmimedev.lower-test
2019-05-06T22:50:26.608972Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.16) starting as process 17347
2019-05-06T22:50:26.612524Z 0 [Warning] [MY-010091] [Server] Can't create test file /data/mysql/hsvsmimedev.lower-test
2019-05-06T22:50:26.612543Z 0 [Warning] [MY-010159] [Server] Setting lower_case_table_names=2 because file system for /data/mysql/ is case insensitive
2019-05-06T22:50:26.613641Z 0 [ERROR] [MY-010119] [Server] Aborting
2019-05-06T22:50:26.613908Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.16) MySQL Community Server - GPL.

Here's the /etc/my.cnf - bare bones:
[mysqld]
user=mysql

datadir=/data/mysql
#datadir=/var/lib/mysql
socket=/data/mysql/mysql.sock
#socket=/var/lib/mysql/mysql.sock

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

The /data/MySQL has correct permissions:
drwxr-x---. 6 mysql mysql 4096 May 6 10:33 MySQL

It did start/stop at first with the default /var/lib/MySQL datadir, I modified datadir and it began failing. Restoring the datadir to /var/lib/MySQL didn't work. Since 8.0 seems to auto-init I deleted the datadir contents on each start attempt.

Looking at the log and running journalctl -xe it looks like the service starts as MySQL, creates the databases, then tries to run as mysqld (hence permission denied).

Server's running Red Hat Enterprise 7.

Thanks