• Linxu安装mysql


    1.确保你的虚拟机能上网

    2.我们使用的时yum安装的 下载mysql的repo源

    键入如下命令:

    $ wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
    [root@slave1 ~]# wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
    --2018-03-15 15:38:59--  http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
    正在解析主机 repo.mysql.com (repo.mysql.com)... 23.207.113.116
    正在连接 repo.mysql.com (repo.mysql.com)|23.207.113.116|:80... 已连接。
    已发出 HTTP 请求,正在等待回应... 200 OK
    长度:6140 (6.0K) [application/x-redhat-package-manager]
    正在保存至: “mysql-community-release-el7-5.noarch.rpm”
    
    100%[==============================================>] 6,140       --.-K/s 用时 0s      
    
    2018-03-15 15:38:59 (293 MB/s) - 已保存 “mysql-community-release-el7-5.noarch.rpm” [6140/6140])

    返回200 Ok说明成功

    3.安装mysql-community-release-el7-5.noarch.rpm包

    $ sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm

    [root@slave1 ~]# sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm
    准备中...                          ################################# [100%]
    正在升级/安装...
       1:mysql-community-release-el7-5    ################################# [100%]

    安装这个包后,会获得两个mysql的yum repo源:/etc/yum.repos.d/mysql-community.repo,/etc/yum.repos.d/mysql-community-source.repo。

    4.安装mysql

    $ sudo yum install mysql-server

    根据提示安装就可以了,不过安装完成后没有密码,需要重置密码

    安装过程中可能会出现如下错误:

    [root@slave1 ~]# sudo yum install mysql-server
    已加载插件:fastestmirror, langpacks
    /var/run/yum.pid 已被锁定,PID 为 3761 的另一个程序正在运行。
    Another app is currently holding the yum lock; waiting for it to exit...
      另一个应用程序是:PackageKit
        内存:114 M RSS (450 MB VSZ)
        已启动: Thu Mar 15 15:38:40 2018 - 00:59之前
        状态  :睡眠中,进程ID:3761
    Another app is currently holding the yum lock; waiting for it to exit...
      另一个应用程序是:PackageKit
        内存:114 M RSS (450 MB VSZ)
        已启动: Thu Mar 15 15:38:40 2018 - 01:01之前
        状态  :运行中,进程ID:3761

    解决办法 你看到这个进程ID 3761

    用如下命令:kill -9 强制杀死该命令

    [root@slave1 ~]# kill -9 3761

    如果问题没有解决多来几次就好了

    如下安装中:#############   0.1%

    [root@slave1 ~]# sudo yum install mysql-server
    已加载插件:fastestmirror, langpacks
    Loading mirror speeds from cached hostfile
     * base: mirror.bit.edu.cn
     * extras: mirrors.aliyun.com
     * updates: mirrors.aliyun.com
    正在解决依赖关系
    --> 正在检查事务
    ---> 软件包 mysql-community-server.x86_64.0.5.6.39-2.el7 将被 安装
    --> 正在处理依赖关系 mysql-community-common(x86-64) = 5.6.39-2.el7,它被软件包 mysql-community-server-5.6.39-2.el7.x86_64 需要
    --> 正在处理依赖关系 mysql-community-client(x86-64) >= 5.6.10,它被软件包 mysql-community-server-5.6.39-2.el7.x86_64 需要
    --> 正在处理依赖关系 perl(DBI),它被软件包 mysql-community-server-5.6.39-2.el7.x86_64 需要
    --> 正在检查事务
    ---> 软件包 mysql-community-client.x86_64.0.5.6.39-2.el7 将被 安装
    --> 正在处理依赖关系 mysql-community-libs(x86-64) >= 5.6.10,它被软件包 mysql-community-client-5.6.39-2.el7.x86_64 需要
    ---> 软件包 mysql-community-common.x86_64.0.5.6.39-2.el7 将被 安装
    ---> 软件包 perl-DBI.x86_64.0.1.627-4.el7 将被 安装
    --> 正在处理依赖关系 perl(RPC::PlServer) >= 0.2001,它被软件包 perl-DBI-1.627-4.el7.x86_64 需要
    --> 正在处理依赖关系 perl(RPC::PlClient) >= 0.2000,它被软件包 perl-DBI-1.627-4.el7.x86_64 需要
    --> 正在检查事务
    ---> 软件包 mariadb-libs.x86_64.1.5.5.41-2.el7_0 将被 取代
    ---> 软件包 mysql-community-libs.x86_64.0.5.6.39-2.el7 将被 舍弃
    ---> 软件包 perl-PlRPC.noarch.0.0.2020-14.el7 将被 安装
    --> 正在处理依赖关系 perl(Net::Daemon) >= 0.13,它被软件包 perl-PlRPC-0.2020-14.el7.noarch 需要
    --> 正在处理依赖关系 perl(Net::Daemon::Test),它被软件包 perl-PlRPC-0.2020-14.el7.noarch 需要
    --> 正在处理依赖关系 perl(Net::Daemon::Log),它被软件包 perl-PlRPC-0.2020-14.el7.noarch 需要
    --> 正在处理依赖关系 perl(Compress::Zlib),它被软件包 perl-PlRPC-0.2020-14.el7.noarch 需要
    --> 正在检查事务
    ---> 软件包 perl-IO-Compress.noarch.0.2.061-2.el7 将被 安装
    --> 正在处理依赖关系 perl(Compress::Raw::Zlib) >= 2.061,它被软件包 perl-IO-Compress-2.061-2.el7.noarch 需要
    --> 正在处理依赖关系 perl(Compress::Raw::Bzip2) >= 2.061,它被软件包 perl-IO-Compress-2.061-2.el7.noarch 需要
    ---> 软件包 perl-Net-Daemon.noarch.0.0.48-5.el7 将被 安装
    --> 正在检查事务
    ---> 软件包 perl-Compress-Raw-Bzip2.x86_64.0.2.061-3.el7 将被 安装
    ---> 软件包 perl-Compress-Raw-Zlib.x86_64.1.2.061-4.el7 将被 安装
    --> 解决依赖关系完成
    
    依赖关系解决
    
    ========================================================================================
     Package                     架构       版本                源                     大小
    ========================================================================================
    正在安装:
     mysql-community-libs        x86_64     5.6.39-2.el7        mysql56-community     2.0 M
          替换  mariadb-libs.x86_64 1:5.5.41-2.el7_0
     mysql-community-server      x86_64     5.6.39-2.el7        mysql56-community      59 M
    为依赖而安装:
     mysql-community-client      x86_64     5.6.39-2.el7        mysql56-community      19 M
     mysql-community-common      x86_64     5.6.39-2.el7        mysql56-community     257 k
     perl-Compress-Raw-Bzip2     x86_64     2.061-3.el7         base                   32 k
     perl-Compress-Raw-Zlib      x86_64     1:2.061-4.el7       base                   57 k
     perl-DBI                    x86_64     1.627-4.el7         base                  802 k
     perl-IO-Compress            noarch     2.061-2.el7         base                  260 k
     perl-Net-Daemon             noarch     0.48-5.el7          base                   51 k
     perl-PlRPC                  noarch     0.2020-14.el7       base                   36 k
    
    事务概要
    ========================================================================================
    安装  2 软件包 (+8 依赖软件包)
    
    总下载量:82 M
    Is this ok [y/d/N]: y
    Downloading packages:
    警告:/var/cache/yum/x86_64/7/mysql56-community/packages/mysql-community-common-5.6.39-2.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
    mysql-community-common-5.6.39-2.el7.x86_64.rpm 的公钥尚未安装
    (1/10): mysql-community-common-5.6.39-2.el7.x86_64.rpm           | 257 kB  00:00:00     
    (2/10): mysql-community-libs-5.6.39-2.el7.x86_64.rpm             | 2.0 MB  00:00:00     
    警告:/var/cache/yum/x86_64/7/base/packages/perl-Compress-Raw-Zlib-2.061-4.el7.x86_64.rpm: 头V3 RSA/SHA256 Signature, 密钥 ID f4a80eb5: NOKEY
    perl-Compress-Raw-Zlib-2.061-4.el7.x86_64.rpm 的公钥尚未安装
    (3/10): perl-Compress-Raw-Zlib-2.061-4.el7.x86_64.rpm            |  57 kB  00:00:00     
    (4/10): perl-Compress-Raw-Bzip2-2.061-3.el7.x86_64.rpm           |  32 kB  00:00:00     
    (5/10): perl-DBI-1.627-4.el7.x86_64.rpm                          | 802 kB  00:00:02     
    (6/10): perl-Net-Daemon-0.48-5.el7.noarch.rpm                    |  51 kB  00:00:00     
    (7/10): perl-PlRPC-0.2020-14.el7.noarch.rpm                      |  36 kB  00:00:00     
    (8/10): perl-IO-Compress-2.061-2.el7.noarch.rpm                  | 260 kB  00:00:04     
    (9/10): mysql-community-client-5.6.39-2.el7.x86_64.rpm           |  19 MB  00:00:09     
    (10/10): mysql-community-server-5.6.39-2.el7.x86_64.rpm          |  59 MB  00:00:32     
    ----------------------------------------------------------------------------------------
    总计                                                       2.4 MB/s |  82 MB  00:34     
    从 file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql 检索密钥
    导入 GPG key 0x5072E1F5:
     用户ID     : "MySQL Release Engineering <mysql-build@oss.oracle.com>"
     指纹       : a4a9 4068 76fc bd3c 4567 70c8 8c71 8d3b 5072 e1f5
     软件包     : mysql-community-release-el7-5.noarch (installed)
     来自       : file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
    是否继续?[y/N]:y
    从 file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 检索密钥
    导入 GPG key 0xF4A80EB5:
     用户ID     : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>"
     指纹       : 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
     软件包     : centos-release-7-1.1503.el7.centos.2.8.x86_64 (@anaconda)
     来自       : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
    是否继续?[y/N]:y
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
    警告:RPM 数据库已被非 yum 程序修改。
      正在安装    : mysql-community-common-5.6.39-2.el7.x86_64                         1/11 
      正在安装    : mysql-community-libs-5.6.39-2.el7.x86_64                           2/11 
      正在安装    : mysql-community-client-5.6.39-2.el7.x86_64                         3/11 
      正在安装    : 1:perl-Compress-Raw-Zlib-2.061-4.el7.x86_64                        4/11 
      正在安装    : perl-Net-Daemon-0.48-5.el7.noarch                                  5/11 
      正在安装    : perl-Compress-Raw-Bzip2-2.061-3.el7.x86_64                         6/11 
      正在安装    : perl-IO-Compress-2.061-2.el7.noarch                                7/11 
      正在安装    : perl-PlRPC-0.2020-14.el7.noarch                                    8/11 
      正在安装    : perl-DBI-1.627-4.el7.x86_64                                        9/11 
      正在安装    : mysql-community-server-5.6.39-2.el7.x86_64                        10/11 
      正在删除    : 1:mariadb-libs-5.5.41-2.el7_0.x86_64                              11/11 
      验证中      : mysql-community-server-5.6.39-2.el7.x86_64                         1/11 
      验证中      : perl-Compress-Raw-Bzip2-2.061-3.el7.x86_64                         2/11 
      验证中      : perl-Net-Daemon-0.48-5.el7.noarch                                  3/11 
      验证中      : mysql-community-common-5.6.39-2.el7.x86_64                         4/11 
      验证中      : mysql-community-libs-5.6.39-2.el7.x86_64                           5/11 
      验证中      : mysql-community-client-5.6.39-2.el7.x86_64                         6/11 
      验证中      : 1:perl-Compress-Raw-Zlib-2.061-4.el7.x86_64                        7/11 
      验证中      : perl-PlRPC-0.2020-14.el7.noarch                                    8/11 
      验证中      : perl-IO-Compress-2.061-2.el7.noarch                                9/11 
      验证中      : perl-DBI-1.627-4.el7.x86_64                                       10/11 
      验证中      : 1:mariadb-libs-5.5.41-2.el7_0.x86_64                              11/11 
    
    已安装:
      mysql-community-libs.x86_64 0:5.6.39-2.el7                                            
      mysql-community-server.x86_64 0:5.6.39-2.el7                                          
    
    作为依赖被安装:
      mysql-community-client.x86_64 0:5.6.39-2.el7                                          
      mysql-community-common.x86_64 0:5.6.39-2.el7                                          
      perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7                                          
      perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7                                           
      perl-DBI.x86_64 0:1.627-4.el7                                                         
      perl-IO-Compress.noarch 0:2.061-2.el7                                                 
      perl-Net-Daemon.noarch 0:0.48-5.el7                                                   
      perl-PlRPC.noarch 0:0.2020-14.el7                                                     
    
    替代:
      mariadb-libs.x86_64 1:5.5.41-2.el7_0                                                  
    
    完毕!

    直至提示安装完毕就好了

    5.重置mysql密码

    登录时有可能报这样的错:ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock‘ (2),原因是/var/lib/mysql的访问权限问题。下面的命令把/var/lib/mysql的拥有者改为当前用户:
    $ sudo chown -R root:root /var/lib/mysql

    [root@slave1 ~]# mysql -u root
    ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
    [root@slave1 ~]# sudo chown -R root:root /var/lib/mysql

    6.重启mysql服务

    $ service mysqld restart

    [root@slave1 ~]# service mysqld restart
    Redirecting to /bin/systemctl restart  mysqld.service

    7.再次登陆

    [root@slave1 ~]# mysql -u root
    Welcome to the MySQL monitor.  Commands end with ; or g.
    Your MySQL connection id is 2
    Server version: 5.6.39 MySQL Community Server (GPL)
    
    Copyright (c) 2000, 2018, 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> use mysql

    登陆成功

    8.接下来登录重置密码

    $ mysql -u root //直接回车进入mysql控制台
    mysql > use mysql;
    mysql > update user set password=password('root') where user='root';
    mysql > exit;

    注意分号结尾

    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 password=password('root') where user='root';
    Query OK, 4 rows affected (0.00 sec)
    Rows matched: 4  Changed: 4  Warnings: 0
    
    mysql> exit
    Bye

    9.试着创建一个数据库

    mysql> create database school;
    Query OK, 1 row affected (0.00 sec)
    mysql> show databases;
    +--------------------+
    | Database           |
    +--------------------+
    | information_schema |
    | mysql              |
    | performance_schema |
    | school             |
    +--------------------+
    4 rows in set (0.00 sec)

    10.其他

    Linux下配置Mysql允许远程访问详解
    
    操作非常简单,就5步骤,如下:
    1.进入 mysql:
    /usr/local/mysql/bin/mysql -u root -p
    2.使用 mysql库 :
    use mysql;
    3.查看用户表 :
    SELECT `Host`,`User` FROM user;
    4.更新用户表 :
    UPDATE user SET `Host` = '%' WHERE `User` = 'root' LIMIT 1;
    5.强制刷新权限 :
    flush privileges;
    完成以上步骤即可远程连接数据库了,上边关键的一句是
    UPDATE user SET `Host` = '%' WHERE `User` = 'root' LIMIT 1;
    其中%的意思是允许所有的ip远程访问,如果需要指定具体的某个ip就写上具体的ip即可 
    KO...
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  • 原文地址:https://www.cnblogs.com/lcycn/p/8574157.html
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