1.1检查RPM包

[root@mysql2 mysql]# rpm -e mariadb-libs-5.5.52-1.el7.x86_64 –nodeps

[root@mysql2 mysql]# rpm -e mariadb-server-5.5.52-1.el7.x86_64 --nodeps

[root@mysql2 mysql]# rpm -e mariadb-5.5.52-1.el7.x86_64 --nodeps

[root@mysql2 mysql]# rpm -qa |grep mysql

1.2 检查用户

# id mysql

mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz

[root@mysql2 soft]# tar -zxvf mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz

[root@mysql2 soft]# cp -rp mysql-5.7.23-linux-glibc2.12-x86_64/* /usr/local/mysql/

[root@mysql2 mysql]# cd /usr/local/mysql

[root@mysql2 mysql]# chown -R mysql:mysql *

[mysqld]

bind-address=192.168.31.188

port=3306

user=mysql

basedir=/usr/local/mysql

datadir=/u01/data

socket=/tmp/mysql.sock

log-error=/u01/data/mysql.err

pid-file=/u01/data/mysql.pid

#character config

character_set_server=utf8mb4

symbolic-links=0

explicit_defaults_for_timestamp=true

[root@mysql2 bin]# ./mysqld --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql/ --datadir=/u01/data --user=mysql --initialize

获取密码

GuRa.yku8ao_

[root@mysql2 bin]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql

[root@mysql2 bin]# service mysql start

[root@mysql2 bin]# ps -ef|grep mysql

[root@mysql2 bin]# mysql -uroot -p

mysql> alter user 'root'@'localhost' identified by 'Oracle123';

mysql> flush privileges;