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安装教程,18的详细教程

  1. ###  下载并安装MySQL官方的 Yum Repository

    wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
    

    在当前目录下会生成rpm文件

    图片 1

  2. ### 使用yum安装

    yum -y install mysql57-community-release-el7-10.noarch.rpm
    yum -y install mysql-community-server
    

     等待一段时间MySQL就安装完成了,然后是对MySQL的一些设置。

  3. ### 修改root密码

    安装成功后默认会创建一个root用户,并携带一个初始密码,需要修改初始密码,启动mysql

    systemctl start mysqld.service
    

    在Mysql的日志找出初始密码,命令如下

    grep "password" /var/log/mysqld.log
    

    图片 2

    通过下面的命令进入数据库

    mysql -uroot -p
    

    图片 3

    在mysql客户端连接环境下执行修改密码命令

    ALTER USER 'root'@'localhost' IDENTIFIED BY 'new@password';
    

    此时密码修改成功,重启mysql服务

    systemctl restart mysqld.service
    
  4. ###   修改字符集为UTF-8

    通过命令 mysql -uroot -p 进入Mysql,注意是新密码,在mysql环境下通过如下命令查看字符集

    show variables like '%character%';
    

    图片 4

    我们看到上面的字符集不都是utf-8,现在我们在bash终端打开mysql配置文件

    vi /etc/my.cnf
    

    根据实际情况添加以下配置项

    #add by tangxiaobai
    character-set-server=utf8
    [client]
    default-character-set=utf8
    [mysql]
    default-character-set=utf8
    

    图片 5

    重启服务器,查看字符集有没有修改成功

    图片 6

    我们看到字符集修改成功

  5. ### 设置mysql支持远程连接

    到现在为止,我们的Mysql还不能远程连接访问,这里我们用的是该表法,登录mysql命令客户端,执行以下命令

    use mysql;
    update user set host = '%' where user = 'root';
    

    重启Mysql服务,用客户端连接工具测试

    图片 7

    我们看到mysql连接测试成功。

    但此时还有一个问题,就是因为安装了Yum Repository,以后每次yum操作都会自动更新,需要把这个卸载掉:

    yum -y remove mysql57-community-release-el7-10.noarch
    

1、下载并安装MySQL官方的Yum Repository

1查看Linux发行版本

wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm

[root@typecodes ~]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)

在当前目录下会生成rpm文件

2 下载MySQL官方的Yum Repository

图片 8

根据Linux发行版本(CentOS、Fedora都属于红帽系),从mysql官方()获取Yum Repository。

2、使用yum安装

[root@typecodes ~]# wget -i http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm
--2016-02-03 18:36:02-- http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm
Resolving dev.mysql.com (dev.mysql.com)... 137.254.60.11
Connecting to dev.mysql.com (dev.mysql.com)|137.254.60.11|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location: http://repo.mysql.com//mysql57-community-release-el7-7.noarch.rpm [following]
--2016-02-03 18:36:04-- http://repo.mysql.com//mysql57-community-release-el7-7.noarch.rpm
Resolving repo.mysql.com (repo.mysql.com)... 104.102.164.25
Connecting to repo.mysql.com (repo.mysql.com)|104.102.164.25|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 8984 (8.8K) [application/x-redhat-package-manager]
Saving to: ‘mysql57-community-release-el7-7.noarch.rpm'
100%[=============================================================================================================================>] 8,984  --.-K/s in 0s
2016-02-03 18:36:07 (68.4 MB/s) - ‘mysql57-community-release-el7-7.noarch.rpm' saved [8984/8984]
3 安装MySQL的Yum Repository
安装完MySQL的Yum Repository,每次执行yum update都会检查MySQL是否更新。
[root@typecodes ~]# yum -y install mysql57-community-release-el7-7.noarch.rpm
Loaded plugins: axelget, fastestmirror, langpacks
Examining mysql57-community-release-el7-7.noarch.rpm: mysql57-community-release-el7-7.noarch
Marking mysql57-community-release-el7-7.noarch.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package mysql57-community-release.noarch 0:el7-7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=======================================================================================================================================================================
 Package          Arch      Version     Repository             Size
=======================================================================================================================================================================
Installing:
 mysql57-community-release      noarch      el7-7      /mysql57-community-release-el7-7.noarch      7.8 k
Transaction Summary
=======================================================================================================================================================================
Install 1 Package
Total size: 7.8 k
Installed size: 7.8 k
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
 Installing : mysql57-community-release-el7-7.noarch                            1/1 
 Verifying : mysql57-community-release-el7-7.noarch                           1/1
Installed:
 mysql57-community-release.noarch 0:el7-7
Complete!
yum -y install mysql57-community-release-el7-10.noarch.rpm
yum -y install mysql-community-server[/code]

3 安装MySQL数据库的服务器版本

等待一段时间MySQL就安装完成了,然后是对MySQL的一些设置。

[root@typecodes ~]# yum -y install mysql-community-server
Loaded plugins: axelget, fastestmirror, langpacks
No metadata available for base
No metadata available for epel
No metadata available for extras
repomd.xml                                  | 2.5 kB 00:00:00  
update mysql-connectors-community metadata successfully
repomd.xml                                  | 2.5 kB 00:00:00  
update mysql-tools-community metadata successfully
repomd.xml                                  | 2.5 kB 00:00:00  
update mysql57-community metadata successfully
No metadata available for updates
mysql-connectors-community                              | 2.5 kB 00:00:00  
mysql-tools-community                               | 2.5 kB 00:00:00  
mysql57-community                                | 2.5 kB 00:00:00  
(1/3): mysql-tools-community/x86_64/primary_db                         | 24 kB 00:00:01  
(2/3): mysql57-community/x86_64/primary_db                          | 28 kB 00:00:01  
(3/3): mysql-connectors-community/x86_64/primary_db                        | 8.6 kB 00:00:02  
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * epel: mirrors.neusoft.edu.cn
 * extras: mirrors.163.com
 * updates: mirrors.163.com
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-server.x86_64 0:5.7.10-1.el7 will be installed
--> Processing Dependency: mysql-community-common(x86-64) = 5.7.10-1.el7 for package: mysql-community-server-5.7.10-1.el7.x86_64
--> Processing Dependency: mysql-community-client(x86-64) = 5.7.10-1.el7 for package: mysql-community-server-5.7.10-1.el7.x86_64
--> Running transaction check
---> Package mysql-community-client.x86_64 0:5.7.10-1.el7 will be installed
--> Processing Dependency: mysql-community-libs(x86-64) = 5.7.10-1.el7 for package: mysql-community-client-5.7.10-1.el7.x86_64
---> Package mysql-community-common.x86_64 0:5.7.10-1.el7 will be installed
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.44-2.el7.centos will be obsoleted
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 2:postfix-2.10.1-6.el7.x86_64
--> Processing Dependency: libmysqlclient.so.18(libmysqlclient_18)(64bit) for package: 2:postfix-2.10.1-6.el7.x86_64
---> Package mysql-community-libs.x86_64 0:5.7.10-1.el7 will be obsoleting
--> Running transaction check
---> Package mysql-community-libs-compat.x86_64 0:5.7.10-1.el7 will be obsoleting
--> Finished Dependency Resolution
Dependencies Resolved
=======================================================================================================================================================================
 Package           Arch       Version        Repository        Size
=======================================================================================================================================================================
Installing:
 mysql-community-libs        x86_64      5.7.10-1.el7       mysql57-community      2.2 M
  replacing mariadb-libs.x86_64 1:5.5.44-2.el7.centos
 mysql-community-libs-compat      x86_64      5.7.10-1.el7       mysql57-community      2.0 M
  replacing mariadb-libs.x86_64 1:5.5.44-2.el7.centos
 mysql-community-server        x86_64      5.7.10-1.el7       mysql57-community      142 M
Installing for dependencies:
 mysql-community-client        x86_64      5.7.10-1.el7       mysql57-community       24 M
 mysql-community-common        x86_64      5.7.10-1.el7       mysql57-community      269 k
Transaction Summary
=======================================================================================================================================================================
Install 3 Packages ( 2 Dependent packages)
Total download size: 171 M
Downloading packages:
mysql-community-server-5.7.10-1.el7.x86_64.rpm                         | 142 MB 00:03:42  
mysql-community-libs-compat-5.7.10-1.el7.x86_64.rpm                        | 2.0 MB 00:00:03  
mysql-community-libs-5.7.10-1.el7.x86_64.rpm                         | 2.2 MB 00:00:05  
mysql-community-client-5.7.10-1.el7.x86_64.rpm                         | 24 MB 00:00:41  
warning: /var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-common-5.7.10-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY00 ETA 
Public key for mysql-community-common-5.7.10-1.el7.x86_64.rpm is not installed
mysql-community-common-5.7.10-1.el7.x86_64.rpm                         | 269 kB 00:00:01  
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
Importing GPG key 0x5072E1F5:
 Userid  : "MySQL Release Engineering <mysql-build@oss.oracle.com>"
 Fingerprint: a4a9 4068 76fc bd3c 4567 70c8 8c71 8d3b 5072 e1f5
 Package : mysql57-community-release-el7-7.noarch (@/mysql57-community-release-el7-7.noarch)
 From  : /etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
 Installing : mysql-community-common-5.7.10-1.el7.x86_64                           1/6 
 Installing : mysql-community-libs-5.7.10-1.el7.x86_64                           2/6 
 Installing : mysql-community-client-5.7.10-1.el7.x86_64                           3/6 
 Installing : mysql-community-server-5.7.10-1.el7.x86_64                           4/6 
 Installing : mysql-community-libs-compat-5.7.10-1.el7.x86_64                          5/6 
 Erasing : 1:mariadb-libs-5.5.44-2.el7.centos.x86_64                           6/6 
 Verifying : mysql-community-server-5.7.10-1.el7.x86_64                           1/6 
 Verifying : mysql-community-libs-compat-5.7.10-1.el7.x86_64                          2/6 
 Verifying : mysql-community-common-5.7.10-1.el7.x86_64                           3/6 
 Verifying : mysql-community-libs-5.7.10-1.el7.x86_64                           4/6 
 Verifying : mysql-community-client-5.7.10-1.el7.x86_64                           5/6 
 Verifying : 1:mariadb-libs-5.5.44-2.el7.centos.x86_64                           6/6
Installed:
 mysql-community-libs.x86_64 0:5.7.10-1.el7   mysql-community-libs-compat.x86_64 0:5.7.10-1.el7   mysql-community-server.x86_64 0:5.7.10-1.el7
Dependency Installed:
 mysql-community-client.x86_64 0:5.7.10-1.el7          mysql-community-common.x86_64 0:5.7.10-1.el7
Replaced:
 mariadb-libs.x86_64 1:5.5.44-2.el7.centos
Complete!
[root@typecodes ~]# clear

3、修改root密码

最后的截图:

安装成功后默认会创建一个root用户,并携带一个初始密码,需要修改初始密码,启动mysql

图片 9

systemctl start mysqld.service

4 启动数据库:

在Mysql的日志找出初始密码,命令如下

[root@typecodes ~]# systemctl start mysqld.service
grep "password" /var/log/mysqld.log

然后使用命令systemctl status mysqld.service查看MySQL数据库启动后的服务状态:

图片 10

图片 11

通过下面的命令进入数据库

5 获取初始密码

mysql -uroot -p

使用YUM安装并启动MySQL服务后,MySQL进程会自动在进程日志中打印root用户的初始密码:

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