CentOS 7.x 卸载删除MariaDB，重新安装

卸载

[root@node1 ~]# rpm -qa|grep mariadb

mariadb-5.5.56-2.el7.x86_64

mariadb-libs-5.5.56-2.el7.x86_64

mariadb-server-5.5.56-2.el7.x86_64

[root@node1 ~]#

[root@node1 ~]# yum remove mariadb

...

Removed:

mariadb.x86_64 1:5.5.56-2.el7

Dependency Removed:

mariadb-server.x86_64 1:5.5.56-2.el7

Complete!

2、删除遗留目录

[root@node1 ~]#/etc/my.cnf

[root@node1 ~]# ll /var/lib/mysql/

total 28700

-rw-rw---- 1 mysql mysql 16384 May 5 10:31 aria_log.00000001

-rw-rw---- 1 mysql mysql 52 May 5 10:31 aria_log_control

-rw-rw---- 1 mysql mysql 18874368 May 5 10:31 ibdata1

-rw-rw---- 1 mysql mysql 5242880 May 5 10:31 ib_logfile0

-rw-rw---- 1 mysql mysql 5242880 Oct 6 2017 ib_logfile1

drwx------ 2 mysql mysql 4096 Oct 6 2017 mysql

drwx------ 2 mysql mysql 4096 Oct 6 2017 performance_schema

[root@node1 ~]# rm -rf /etc/my.cnf

[root@node1 ~]# rm -rf /var/lib/mysql/

3、重新安装

[root@node1 ~]# yum install -y mariadb mariadb-server

[root@node1 ~]# systemctl start mariadb

[root@node1 ~]# systemctl enable mariadb

[root@node1 ~]# mysql_secure_installation