mysql5.6和5.7安装 centos

mysql5.7安装

tar xf mysql-5.7.-linux-glibc2.-x86_64.tar.gz

mv mysql-5.7.-linux-glibc2.-x86_64 /opt/mysql

yum install -y compat-libstdc++- libaio libaio-devel

useradd -M -s /sbin/nologin mysql

mkdir -p /home/mysql//{data,logs,binlog}

chown -R mysql:mysql  /home/mysql

cd /opt/mysql

./bin/mysqld --defaults-file=/opt/mysql/conf/my3306.cnf --initialize --user=mysql --basedir=/opt/mysql --datadir=/home/mysql//data
#/opt/mysql/conf/my3306.cnf 链接：http://www.cnblogs.com/hanxiaohui/p/8669980.html
#修改/opt/mysql/bin/mysqld_safe  :,$s@usr/local@opt@g

/opt/mysql/scripts/my3306.sh start
#脚本链接：http://www.cnblogs.com/hanxiaohui/p/8399191.html

登陆修改密码
#skip-grant-tables  重启
update mysql.user set authentication_string=password('') where user='root';
flush privileges;

初次登陆后需要执行:
    SET PASSWORD = PASSWORD('');这句话重新设置一次密码,不然什么都操作不了！大爷的，真费劲啊。

mysql5.6安装

tar xf mysql-5.6.-linux-glibc2.-x86_64.tar.gz

mv mysql-5.6.-linux-glibc2.-x86_64 /opt/mysql

yum install -y compat-libstdc++- libaio libaio-devel

useradd -M -s /sbin/nologin mysql

mkdir -p /home/mysql//{data,logs,binlog}

chown -R mysql:mysql  /home/mysql

cd /opt/mysql

./scripts/mysql_install_db --user=mysql --datadir=/home/mysql/3306/data
#/opt/mysql/conf/my3306.cnf 链接：http://www.cnblogs.com/hanxiaohui/p/8399161.html
#修改/opt/mysql/bin/mysqld_safe  :,$s@usr/local@opt@g

/opt/mysql/scripts/my3306.sh start
#脚本链接：http://www.cnblogs.com/hanxiaohui/p/8399191.html

登陆修改密码
装好是没有密码的
update mysql.user set password=password('') where user='root';
flush privileges;

授权
grant all on *.* to 'root'@'%' identified by '';
flush privileges;