非root用户安装mysql5.7

rpm -qa | grep maria*

rpm -e mariadb-libs-5.5.64-1.el7.x86_64 --nodeps

cd ~

tar -zxvf mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz

mv mysql-5.7.21-linux-glibc2.12-x86_64 mysql

cd mysql

vi my.cnf

[mysqld]

port=3306

character_set_server=utf8

init_connect='SET NAMES utf8'

basedir=/home/rpa/mysql

datadir=/home/rpa/mysql/data

pid-file=/home/rpa/mysql/mysql.pid

log_error=/home/rpa/mysql/error.log

lower_case_table_names = 1

/home/rpa/mysql/bin/mysqld --defaults-file=/home/rpa/mysql/my.cnf --initialize --user=rpa 

cat error.log | grep root@localhost

nohup /home/rpa/mysql/bin/mysqld_safe --defaults-file=/home/rpa/mysql/my.cnf > /dev/null 2>&1 &

mysql -u root -p

ALTER USER 'root'@'localhost' IDENTIFIED BY 'mysql';

use mysql;

update user set host = "%" where user='root';

flush privileges;

quit;

su -

vi /etc/rc.d/rc.local

source /etc/profile #必须是第一行

su rpa -c "/home/rpa/mysql/bin/mysqld_safe --defaults-file=/home/rpa/mysql/my.cnf --user=rpa &"

/home/rpa/mysql/bin/mysqladmin shutdown -u root -p