centos 7下安装mysql5.7

2024-07-24 13:00:29

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#### 1、下载安装包 http://dev.MySQL.com/downloads/mysql/#downloads 推荐下载通用安装方法的TAR包

2.检查库文件是否存在，如有删除。

[root@localhost Desktop]$ rpm -qa | grep mysqlmysql-libs-5.1.52-1.el6_0.1.x86_64[root@localhost ~]$ rpm -e mysql-libs-5.1.52.x86_64 --nodeps[root@localhost ~]$1234

3.检查mysql组和用户是否存在，如无创建。

[root@localhost ~]$ cat /etc/group | grep mysqlmysql:x:490:[root@localhost ~]$ cat /etc/passwd | grep mysqlmysql:x:496:490::/home/mysql:/bin/bash1234

以上为默认存在的情况，如无，执行添加命令：

[root@localhost ~]$groupadd mysql[root@localhost ~]$useradd -r -g mysql mysql//useradd -r参数表示mysql用户是系统用户，不可用于登录系统。123

4.解压TAR包，更改所属的组和用户

[root@localhost ~]$ cd /usr/local/[root@localhost local]$ tar xvf mysql-5.7.12-linux-glibc2.5-x86_64.tar[root@localhost local]$ ls -ltotal 1306432-rwxr--r--. 1 root root 668866560 Jun 1 15:07 mysql-5.7.12-linux-glibc2.5-x86_64.tar-rw-r--r--. 1 7161 wheel 638960236 Mar 28 12:54 mysql-5.7.12-linux-glibc2.5-x86_64.tar.gz-rw-r--r--. 1 7161 wheel 29903372 Mar 28 12:48 mysql-test-5.7.12-linux-glibc2.5-x86_64.tar.gz[root@localhost local]$ tar xvfz mysql-5.7.12-linux-glibc2.5-x86_64.tar.gz[root@localhost local]$ mv mysql-5.7.12-linux-glibc2.5-x86_64 mysql[root@localhost local]$ ls -ltotal 1306436drwxr-xr-x. 2 root root 4096 Dec 4 2009 bindrwxr-xr-x. 2 root root 4096 Dec 4 2009 etcdrwxr-xr-x. 2 root root 4096 Dec 4 2009 gamesdrwxr-xr-x. 2 root root 4096 Dec 4 2009 includedrwxr-xr-x. 2 root root 4096 Dec 4 2009 libdrwxr-xr-x. 3 root root 4096 Dec 2 14:36 lib64drwxr-xr-x. 2 root root 4096 Dec 4 2009 libexecdrwxr-xr-x. 9 7161 wheel 4096 Mar 28 12:51 mysql-rwxr--r--. 1 root root 668866560 Jun 1 15:07 mysql-5.7.12-linux-glibc2.5-x86_64.tar-rw-r--r--. 1 7161 wheel 638960236 Mar 28 12:54 mysql-5.7.12-linux-glibc2.5-x86_64.tar.gz-rw-r--r--. 1 7161 wheel 29903372 Mar 28 12:48 mysql-test-5.7.12-linux-glibc2.5-x86_64.tar.gzdrwxr-xr-x. 2 root root 4096 Dec 4 2009 sbindrwxr-xr-x. 6 root root 4096 Dec 2 14:36 sharedrwxr-xr-x. 2 root root 4096 Dec 4 2009 src[root@localhost local]$ chown -R mysql mysql/[root@localhost local]$ chgrp -R mysql mysql/[root@localhost local]$ cd mysql/12345678910111213141516171819202122232425262728

5.安装和初始化数据库

[root@localhost mysql]$ bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/2016-06-01 15:23:25 [WARNING] mysql_install_db is dePRecated. Please consider switching to mysqld --initialize2016-06-01 15:23:30 [WARNING] The bootstrap log isn't empty:2016-06-01 15:23:30 [WARNING] 2016-06-01T22:23:25.491840Z 0 [Warning] --bootstrap is deprecated. Please consider using --initialize instead2016-06-01T22:23:25.492256Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)2016-06-01T22:23:25.492260Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)123456

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 ln -s /apps/mysql/bin/mysqld /usr/local/mysql/bin/mysqld
[root@localhost mysql]$[root@localhost mysql]$ cp -a ./support-files/my-default.cnf /etc/my.cnf[root@localhost mysql]$ cp -a ./support-files/mysql.server /etc/init.d/mysqld1234[root@localhost mysql]$ cd bin/[root@localhost bin]# ./mysqld_safe --user=mysql &[1] 2932[root@localhost bin]# 2016-06-01T22:27:09.708557Z mysqld_safe Logging to '/usr/local/mysql/data/localhost.localdomain.err'.2016-06-01T22:27:09.854913Z mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data12345[root@localhost bin]# /etc/init.d/mysqld restartShutting down MySQL..2016-06-01T22:27:50.498694Z mysqld_safe mysqld from pid file /usr/local/mysql/data/localhost.localdomain.pid ended SUCCESS! Starting MySQL. SUCCESS! [1]+ Done ./mysqld_safe --user=mysql[root@localhost bin]$ //设置开机启动[root@localhost bin]$ chkconfig --level 35 mysqld on[root@localhost bin]$123456789
6.初始化密码
mysql5.7会生成一个初始化密码，而在之前的版本首次登陆不需要登录。
[root@localhost bin]$ cat /root/.mysql_secret # PassWord set for user 'root@localhost' at 2016-06-01 15:23:25 ,xxxxxR5H9[root@localhost bin]$./mysql -uroot -pEnter password: Welcome to the MySQL monitor. Commands end with ; or /g.Your MySQL connection id is 2Server version: 5.7.12Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.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)12345678910111213141516171819202122
7.添加远程访问权限
mysql> use mysql; Reading table information for completion of table and column namesYou can turn off this feature to get a quicker startup with -ADatabase changedmysql> update user set host = '%' where user = 'root';Query OK, 1 row affected (0.00 sec)Rows matched: 1 Changed: 1 Warnings: 0mysql> select host, user from user;+-----------+-----------+| host | user |+-----------+-----------+| % | root || localhost | mysql.sys |+-----------+-----------+//重启生效
/etc/init.d/mysqld restart经过以上处理，Mysql就可以正常启动使用了，但此时会存在大小写敏感的问题，需要进行以下处理：
用root帐号登录后，在/etc/my.cnf 中的[mysqld]后添加添加lower_case_table_names=1，重启MYSQL服务，这时已设置成功：不区分表名的大小写； lower_case_table_names参数详解： lower_case_table_names = 0 其中 0：区分大小写，1：不区分大小写 MySQL在Linux下数据库名、表名、列名、别名大小写规则是这样的： 　　 1、数据库名与表名是严格区分大小写的； 　　 2、表的别名是严格区分大小写的； 　　 3、列名与列的别名在所有的情况下均是忽略大小写的； 　　 4、变量名也是严格区分大小写的； 