1.下载安装:
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
yum localinstall mysql57-community-release-el7-8.noarch.rpm
(提示进程占用,直接kill就行)
检查mysql源是否安装成功
yum repolist enabled | grep "mysql.*-community.*"
进行安装
yum install mysql-community-server
安装完成后启动一下 看看有什么问题没;
systemctl start mysqld
没啥问题修改密码:
sudo grep 'temporary password' /var/log/mysqld.log
通过上述命令找到你的密码
mysql -uroot -p
输入密码进入修改你的root账号密码
修改完密码退出MySQL,出来修改目录了。
2.修改目录:
由于MySQL的数据存的比较大,需要换个路径储存数据,你不可能把你的所有的数据都放在数据库安装的目录下把,所以我们在data目录下创建一个datamysql目录来专门放MySQL的数据。
*以下操作需要root权限:
mkdir datamysql
mkdir datamysql/mysql
cp -R /var/lib/mysql/* /data/datamysql/mysql/
chown -R mysql:mysql /data/datamysql/mysql/
cp /etc/my.cnf /etc/my.cnf.bak
修改配置文件:
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
[client]
port=3306
socket=/data/datamysql/mysql/mysql.sock
default-character-set=utf8
[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_s