centos 7 安装mySql

1,准备mySql源码安装

  # wget http://cdn.mysql.com/Downloads/MySQL-5.6/mysql-5.6.19.tar.gz

       或者

       # wget http://cdn.mysql.com//Downloads/MySQL-5.5/mysql-5.5.46.tar.gz

       或者

      # wget  http://cdn.mysql.com//Downloads/MySQL-5.6/mysql-5.6.27.tar.gz

2:对于centos 7 安装mySql依赖项

      # yum install gcc-c++ make cmake bison bison-devel ncurses-devel libaio-devel perl

      # yum install perl-Data-Dumper

3:安装cmake,下载cmake-2.8.10.2.tar.gz,自行下载

      # tar -zxv -f cmake-2.8.10.2.tar.gz

      # cd cmake-2.8.10.2

      # ./configure

      # make

      # make install

       接下来配置cmake环境变量

      # vi /etc/profile 》》在该文件中末尾追加下面两行

        PATH=/usr/local/cmake-2.8.10.2/bin:$PATH
        export PATH

      # source /etc/profile  》》执行后修改生效

      # echo $PATH    》》查看PATH值

4:安装mySql

      创建安装路径和数据库保存路径

      安装路径: mkdir -p /usr/lcoal/mysql

      数据库路径:mkdir -p /usr/local/mysql/data

      创建mysql用户和组

                     groupadd mysql

                     useradd -r -g mysql mysql

      编译安装mysql

        # tar -zxv -f mysql-5.5.29.tar.gz

        # cd mysql-5.5.29

        #

cmake \

-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \

-DMYSQL_DATADIR=/usr/local/mysql/data \

-DSYSCONFDIR=/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/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

        # make 

        # make install

 

        检查是否安装成功

        到安装目录下 ls

        bin COPYING data docs include INSTALL-BINARY lib man mysql-test README scripts share sql-bench support-files
有bin等以上文件的话,恭喜你已经成功安装了mysql。

 

        将mysql的启动服务添加到系统服务中

        # cp support-files/my-medium.cnf /etc/my.cnf

          cp:是否覆盖"/etc/my.cnf"? y

 

       创建系统数据库的表

       # cd /usr/local/mysql

       # scripts/mysql_install_db --user=mysql

 

        设置环境变量

        # vi /root/.bash_profile

        在修改PATH=$PATH:$HOME/bin为:
PATH=$PATH:$HOME/bin:/usr/local/mysql/bin:/usr/local/mysql/lib

        # source /root/.bash_profile //使刚才的修改生效

 

手动启动mysql:

[root@localhost ~]# cd /usr/local/mysql 

启动MySQL,但不能停止 

[root@localhost mysql]# ./bin/mysqld_safe --user=mysql & 

 此时root还没密码,所以为空值,提示输入密码时,直接回车即可:

[root@localhost mysql]# mysqladmin -u root -p shutdown 

将mysql的启动服务添加到系统服务中:

[root@localhost mysql]# cp support-files/mysql.server /etc/init.d/mysql

启动mysql:

[root@localhost mysql]# service mysql start

        Starting MySQL... ERROR! The server quit without updating PID file /usr/local/mysql/data/localhost.localdomain.pid).

启动失败:  我这里是权限问题,先改变权限: 

[root@localhost mysql]# chown -R mysql:mysql /usr/local/mysql

接着启动服务器:

 [root@localhost mysql]# /etc/init.d/mysql start

修改MySQL的root用户的密码以及打开远程连接:

[root@localhost mysql]# mysql -u root mysql

mysql> use mysql;  

mysql> desc user; 

为root添加远程连接的能力:

mysql> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root"; 

 设置root用户密码:

mysql> update user set Password = password('123456') where User='root';  

mysql> select Host,User,Password from user where User='root';  

mysql> flush privileges;  

mysql> exit

重新登录

[root@localhost mysql]# mysql -u root -p  Enter password:123456

若还不能进行远程连接,关闭防火墙 :

[root@localhost]# /etc/rc.d/init.d/iptables stop


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