centos 6.5下mysql的安装图解

说明：安装环境centos 6.5
1. 下载安装包
http://dev.mysql.com/downloads/mysql/5.7.html#downloads
MySQL-5.7.14-Linux-glibc2.5-x86_64.tar.gz
下载后上传至local/use/mysql的目录下。
2. 检查库文件是否存在，如有删除。
*[root@slave ~]# rpm -qa | grep mysql
mysql-libs-5.1.71-1.el6.x86_64
[root@slave ~]# rpm -e mysql-libs-5.1.71-1.el6.x86_64 –nodeps
[root@slave ~]# rpm -qa | grep mysql*
3. 检查mysql组和用户是否存在，如无创建。
[root@slave ~]# cat /etc/group | grep mysql
[root@slave ~]# cat /etc/passwd | grep mysql

// useradd -r参数表示mysql用户是系统用户，不可用于登录系统。
[root@slave ~]# groupadd mysql
[root@slave ~]# useradd -r -g mysql mysql
4. 解压TAR包，更改所属的组和用户
[root@slave zkpk]# cd /usr/local/
[root@slave local]# tar -xf mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz
[root@slave local]# mv mysql-5.7.14-linux-glibc2.5-x86_64 mysql
[root@slave local]# ll
total 628304
drwxr-xr-x. 2 root root 4096 Sep 23 2011 bin
drwxr-xr-x. 2 root root 4096 Sep 23 2011 etc
drwxr-xr-x. 2 root root 4096 Sep 23 2011 games
drwxr-xr-x. 2 root root 4096 Sep 23 2011 include
drwxr-xr-x. 8 root root 4096 Sep 27 2014 jdk1.7.0_71
drwxr-xr-x. 8 root root 4096 Apr 11 2015 jdk1.8.0_45
drwxr-xr-x. 2 root root 4096 Sep 23 2011 lib
drwxr-xr-x. 2 root root 4096 Sep 23 2011 lib64
drwxr-xr-x. 2 root root 4096 Sep 23 2011 libexec
drwxr-xr-x. 9 7161 31415 4096 Jul 12 21:03 mysql
-rw-r–r–. 1 zkpk zkpk 642694570 Aug 20 00:57 mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz
drwxr-xr-x. 2 root root 4096 Sep 23 2011 sbin
drwxr-xr-x. 5 root root 4096 Jul 30 21:17 share
drwxr-xr-x. 2 root root 4096 Sep 23 2011 src
[root@slave local]# rm mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz
rm: remove regular file `mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz’? y
[root@slave local]# chown -R mysql:mysql mysql/
[root@slave local]# cd mysql/
5. 安装和初始化数据库
配置OS
sudo vim /etc/security/limits.conf

mysql hard nofile 65535
mysql soft nofile 65535
安装与初始化DB
[root@slave mysql]# bin/mysql_install_db –user=mysql –basedir=/usr/local/mysql/ –datadir=/usr/local/mysql/data/2016-08-20 01:18:44 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld –initialize2016-08-20 01:18:47 [WARNING] The bootstrap log isn’t empty:2016-08-20 01:18:47 [WARNING] 2016-08-19T17:18:44.728642Z 0 [Warning] –bootstrap is deprecated. Please consider using –initialize instead2016-08-19T17:18:44.729178Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)2016-08-19T17:18:44.729183Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
如果改变默认安装路径，则需要
1. /etc/my.cnf、/etc/init.d/mysqld中修改：
basedir=’/apps/mysql’ datadir=’/apps/mysql/data’
2. 创建ln：
mkdir -p /usr/local/mysql/bin
[root@slave mysql]# cp -a ./support-files/my-default.cnf /etc/my.cnf
[root@slave mysql]# cp -a ./support-files/mysql.server /etc/init.d/mysqld
[root@slave mysql]# cd bin/
[root@slave bin]# ./mysqld_safe –user=mysql &
[1] 2966
[root@slave bin]# 2016-08-19T17:24:36.174662Z mysqld_safe Logging to ‘/usr/local/mysql/data/slave.err’.2016-08-19T17:24:36.207209Z mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data

[root@slave bin]#
[root@slave bin]#
[root@slave bin]#
[root@slave bin]#
[root@slave bin]# /etc/init.d/mysqld restart
Shutting down MySQL..2016-08-19T17:25:18.416810Z mysqld_safe mysqld from pid file /usr/local/mysql/data/slave.pid ended

Starting MySQL.
[1]+ Done ./mysqld_safe –user=mysql
[root@slave bin]#
设置开机启动
[root@slave bin]# chkconfig –level 35 mysqld on
6. 初始化密码
[root@slave bin]# cat /root/.mysql_secret

Password set for user ‘root@localhost’ at 2016-08-20 01:18:44

eqW;ehX;>-YG
[root@slave bin]# ./mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.14

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql> SET PASSWORD = PASSWORD(‘123456’);
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
7. 添加远程访问权限
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> update user set host = ‘%’ where user = ‘root’;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0

mysql> select host, user from user;
+———–+———–+
| host | user |
+———–+———–+
| % | root || localhost | mysql.sys |
+———–+———–+
//重启生效
/etc/init.d/mysqld restart

1. 修改字符集
   [root@slave mysql]# vim /etc/my.cnf

[mysqld]…略
character-set-server=utf8

//重启生效
/etc/init.d/mysqld restart