centos7下安装mysql的教程

rpm -e mysql  //普通删除模式
rpm -e --nodeps mysql  // 强力删除模式，如果使用上面命令删除时，提示有依赖的其它文件，则用该命令可以对其进行强力删除

wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-boost-5.7.24.tar.gz
tar xvf mysql-boost-5.7.24.tar.gz
cd mysql-5.7.24

cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/usr/local/mysql/data -DSYSCONFDIR=/usr/local/mysql/etc -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_MEMORY_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DMYSQL_UNIX_ADDR=/usr/local/mysql/data/mysql.sock -DMYSQL_TCP_PORT=3306 -DENABLED_LOCAL_INFILE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DDOWNLOAD_BOOST=1 -DWITH_BOOST=./boost
make && make install

cat /etc/passwd #查看用户列表
cat /etc/group #查看用户组列表

groupadd mysql
useradd -g mysql mysql

chown -R mysql:mysql /usr/local/mysql
mysql5.7.18以后不再提供默认的mysql配置文件，这里我们再网上找了一个简单的配置,
vi /etc/my.cnf 然后写入一下内容

[client]
port = 3306
default-character-set=utf8

[mysqld]
# 一般配置选项
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
character-set-server=utf8
default_storage_engine = InnoDB

sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
配置服务脚本

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
chkconfig mysql on #添加到开机启动项
service mysql start #启动mysql
将mysql执行文件加到path目录,vi /etc/profile

PATH=/usr/local/mysql/bin:$PATH
export PATH

cd /usr/local/mysql/bin
./mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
...
2019-04-11T14:34:15.922856Z 1 [Note] A temporary password is generated for root@localhost: /rTmud(Th5Yy

firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload