MySQL, MariaDB 10.2.x Upgrade After /home Restart Error

• MariaDB does not start after upgrade when installation directory is inside /home
• Upgraded to 10.2.8 on Centos 7.4 ibdata error

MariaDB /home Restart Error

Upgraded to 10.2.x 이상 업그레이드시 ibdata1 권한이 mysql유저 권한이 있는데도 불구하고 Read-only file로 인식

journalctl -xe 
... 
7월 10 15:39:18 dev mysqld[18378]: 2018-07-10 15:39:18 140486036174976 [ERROR] InnoDB: Operating system error number 30 in a file operation. 
7월 10 15:39:18 dev mysqld[18378]: 2018-07-10 15:39:18 140486036174976 [ERROR] InnoDB: Error number 30 means 'Read-only file system' 
7월 10 15:39:18 dev mysqld[18378]: 2018-07-10 15:39:18 140486036174976 [Note] InnoDB: Some operating system error numbers are described at https://mariadb.com/kb/en/library/operating-system-error-codes/ 
7월 10 15:39:18 dev mysqld[18378]: 2018-07-10 15:39:18 140486036174976 [ERROR] InnoDB: File ./ibdata1: 'create' returned OS error 230. Cannot continue operation 
... 
7월 10 15:39:18 dev mysqld[18378]: information that should help you find out what is causing the crash. 
7월 10 15:39:18 dev systemd[1]: mariadb.service: main process exited, code=killed, status=6/ABRT

mysql --version 
mysql  Ver 15.1 Distrib 10.2.14-MariaDB, for Linux (x86_64) using readline 5.1

Conclusion

[mysqld] 
# innodb_force_recovery = 1

# AS-IS 
# grep -R Protect /usr/lib/systemd/system/mariadb.service 
ProtectSystem=full 
ProtectHome=true  

# TO-BE 
# grep -R Protect /usr/lib/systemd/system/mariadb.service 
ProtectSystem= 
ProtectHome=  

# systemctl daemon-reload 
# systemctl start mariadb