Centos6.5安装mysql 5.7

Posted 2020-10-08 hoojjack

1、在官网下载安装包：https://dev.mysql.com/downloads/mysql/5.7.html#downloads

       mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz

2、将安装包上传到centos上我安装的目录是在 /usr/local/ 

 1 [[email protected] bin]# cd /
 2 [[email protected] /]# cd usr
 3 [[email protected] usr]# cd local/
 4 [[email protected] local]# ls
 5 bin  etc  games  include  lib  lib64  libexec  sbin  share  src
 6 [[email protected] local]# rz
 7 
 8 [[email protected] local]# ls
 9 bin  etc  games  include  lib  lib64  libexec  mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz  sbin  share  src
10 [[email protected] local]# tar -xzvf mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz 

 

3、将压缩包解压：tar -xzvf mysql-5.7.10...

10 [[email protected] local]# tar -xzvf mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz

 

4、重命名解压后的文件： mv mysql-5.7.10...  mysql

1 [[email protected] local]# ls
2 bin  games    lib    libexec                             mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz  share
3 etc  include  lib64  mysql-5.7.10-linux-glibc2.5-x86_64  sbin                                       src
4 [[email protected] local]# mv mysql-5.7.10-linux-glibc2.5-x86_64 mysql
5 [[email protected] local]# ls
6 bin  etc  games  include  lib  lib64  libexec  mysql  mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz  sbin  share  src

 

5、启动mysql的安装文件

1 [[email protected] mysql]# ./bin/mysql_install_db  --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
2 2017-09-28 11:21:54 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
3 2017-09-28 11:21:59 [WARNING] The bootstrap log isn‘t empty:
4 2017-09-28 11:21:59 [WARNING] 2017-09-28T03:21:55.455859Z 0 [Warning] --bootstrap is deprecated. Please consider using --initialize instead

注意warning部分：mysql_install_db已经被取代了：

./bin/mysqld  --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --initialize

6、设置mysql的my.cnf配置 ( 将mysql下的文件复制一份到/etc/目录下 )

cp /usr/local/mysql/support-files/my-default.cnf  /etc/my.cnf

 

7、修改my.cnf里面的内容：

 1 [mysqld]
 2 basedir=/usr/local/mysql
 3 datadir=/usr/local/mysql/data
 4 port=3306
 5 socket=/usr/local/mysql/mysqld.sock
 6 
 7 [client]
 8 default-character-set=utf8
 9 socket=/usr/local/mysql/mysqld.sock
10 
11 [mysql]
12 default-character-set=utf8
13 socket=/usr/local/mysql/mysqld.sock

一开始没有设置mysql的socket，而报

 

1 ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/tmp/mysql.sock‘ (2)

 

设置好socket 就解决了，其实创建软连接也是不错的选择：ln -s /usr/local/mysql/mysqld.sock  /tmp/mysql.sock

 

 

 

 

8、启动mysql :

[[email protected] etc]# service mysqld restart

 

9、提示修改密码：

1 [[email protected] etc]# mysql
2 ERROR 1045 (28000): Access denied for user ‘root‘@‘localhost‘ (using password: NO)
3 [[email protected] etc]# mysql -uroot -p
4 Enter password: 

10、查看mysql的默认密码：

1 [[email protected] ~]# cat /root/.mysql_secret 
2 # Password set for user ‘[email protected]‘ at 2017-09-28 11:21:55 
3 UQ?x&q+gu#o*

11、用默认密码登录后修改默认密码：

1 mysql> set password = password("root")
2     -> ;
3 Query OK, 0 rows affected, 1 warning (0.00 sec)
4 
5 mysql> flush privileges;
6 Query OK, 0 rows affected (0.00 sec)
7 
8 mysql> use mysql

然后就可以自己对数据库进行相应的操作了。