安装mysql

1、上传已经下载好的mysql安装包到虚拟机下面

2、解压安装包

tar -zxvf mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz

3、移动文件到/usr/local/mysql

mv mysql-5.6.33-linux-glibc2.5-x86_64 /usr/local/mysql

4、针对mysql增加用户

groupadd mysql  (如果之前已经添加过 就需要用groupdel mysql或userdel mysql把之前添加的组给删掉)

useradd -g mysql -M mysql

5、将文件存入到/keudox/mysql/data ,并授权

mkdir -p /keduox/mysql/data

chown -R mysql.mysql /keduox/mysql/data

6、初始化MySQL数据库：

/usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/keduox/mysql/data --user=mysql

出现以下错误：

/usr/local/mysql/scripts/mysql_install_db: /usr/bin/perl: 坏的解释器: 没有那个文件或目录

解决办法：

yum install perl

安装好以后，在次运行

/usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/keduox/mysql/data --user=mysql

出现：

FATAL ERROR: please install the following Perl modules before executing /usr/local/mysql/scripts/mysql_install_db:

Data::Dumper

解决办法：

yum install -y perl-Module-Install.noarch

安装成功后显示

7.相关配置

进入:/usr/local/mysql

修改 my.cnf文件

8：添加mysqld 成为系统服务并设置自启动

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

chkconfig --add mysqld

chkconfig mysqld on

9、启动

/etc/init.d/mysqld start

出现以下错误

chmod: 无法访问"/var/log/mariadb/mariadb.log": 没有那个文件或目录

解决办法：

mkdir /var/log/mariadb

10、设置密码

/usr/local/mysql/bin/mysqladmin -u root password '1234'

出现以下错误：

/usr/local/mysql/bin/mysqladmin: connect to server at 'localhost' failed

error: 'Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)'

Check that mysqld is running and that the socket: '/tmp/mysql.sock' exists!

ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock

11、安装完成后

service mysqld restart  (重启mysql)

把mysql设到环境变量里面去

vi /etc/profile

source /etc/profile

登陆方式

mysql -uroot -p新密码进入

12、开启远程访问

//登录数据库

mysql -u root -p1234

>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '1234' WITH GRANT OPTION;

mysql>FLUSH PRIVILEGES;

>use mysql;

select Host,User,Password from user;

delete from user where Host<>'%';