环境：centos6.9(虚拟机)安装mysql-community-server 5.7版本
说明：一定要把centos和mysql的版本对应好才能正确安装，不然会有很多解决不了的依赖问题
如果你是centos7.X 安装 el7
此处我是centos6.9 安装 el6
还有lscpu看下自己应该安装i686还是x86_64
此处我安装的是i686的
检查是否已经安装了mysql，如果有按照需求删除或者备份
[root@local ~]# rpm -qa | grep mysql
切记这四个rpm都是el6和i686
如果mysql-community-server安装的是el6.i686而mysql-community-client或者其他安装的是el7或者x86_64就会出现解决不了的依赖情况
下载如下软件包，或者你可以直接下载mysql-5.7.21-1.el6.i686.rpm-bundle.tar包含下面四个rpm包
- mysql-community-server-5.7.21-1.el6.i686.rpm
- mysql-community-client-5.7.21-1.el6.i686.rpm
- mysql-community-common-5.7.21-1.el6.i686.rpm
- mysql-community-libs-5.7.21-1.el6.i686.rpm
这里我是直接用wget下载的
[root@local ~]# wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.21-1.el6.i686.rpm-bundle.tar
先解压，然后查看有哪些包
[root@local ~]# tar -xvf mysql-5.7.21-1.el6.i686.rpm-bundle.tar
[root@local ~]# ll
总用量 881028
-rw-r--r--. 1 root root 358268 12月 14 12:33 aircrackgui-1.4.9.tar.gz
-rw-r--r--. 1 root root 2006 12月 1 2016 CentOS6-Base-163.repo
-rw-r--r--. 1 root root 450897920 12月 15 00:00 mysql-5.7.21-1.el6.i686.rpm-bundle.tar
-rw-r--r--. 1 7155 31415 23031008 12月 28 2017 mysql-community-client-5.7.21-1.el6.i686.rpm
-rw-r--r--. 1 7155 31415 337064 12月 28 2017 mysql-community-common-5.7.21-1.el6.i686.rpm
-rw-r--r--. 1 7155 31415 3515344 12月 28 2017 mysql-community-devel-5.7.21-1.el6.i686.rpm
-rw-r--r--. 1 7155 31415 37941856 12月 28 2017 mysql-community-embedded-5.7.21-1.el6.i686.rpm
-rw-r--r--. 1 7155 31415 122678432 12月 28 2017 mysql-community-embedded-devel-5.7.21-1.el6.i686.rpm
-rw-r--r--. 1 7155 31415 2105352 12月 28 2017 mysql-community-libs-5.7.21-1.el6.i686.rpm
-rw-r--r--. 1 7155 31415 1694612 12月 28 2017 mysql-community-libs-compat-5.7.21-1.el6.i686.rpm
-rw-r--r--. 1 7155 31415 157221192 12月 28 2017 mysql-community-server-5.7.21-1.el6.i686.rpm
-rw-r--r--. 1 7155 31415 102362740 12月 28 2017 mysql-community-test-5.7.21-1.el6.i686.rpm
安装顺序：
- mysql-community-common-5.7.21-1.el6.i686.rpm
- mysql-community-libs-5.7.21-1.el6.i686.rpm
- mysql-community-client-5.7.21-1.el6.i686.rpm
- mysql-community-server-5.7.21-1.el6.i686.rpm
具体安装过程：(可能当初安装的是centos minimal还是有太多依赖要解决，好在缺什么你就yum +依赖名字去安装就行了)
[root@local ~]# rpm -ivh mysql-community-common-5.7.21-1.el6.i686.rpm
Preparing... ########################################### [100%]
1:mysql-community-common ########################################### [100%]
[root@local ~]# rpm -ivh mysql-community-libs-5.7.21-1.el6.i686.rpm
error: Failed dependencies:
libgcc_s.so.1 is needed by mysql-community-libs-5.7.21-1.el6.i686
libgcc_s.so.1(GCC_3.0) is needed by mysql-community-libs-5.7.21-1.el6.i686
libgcc_s.so.1(GLIBC_2.0) is needed by mysql-community-libs-5.7.21-1.el6.i686
libstdc++.so.6 is needed by mysql-community-libs-5.7.21-1.el6.i686
libstdc++.so.6(CXXABI_1.3) is needed by mysql-community-libs-5.7.21-1.el6.i686
libstdc++.so.6(GLIBCXX_3.4) is needed by mysql-community-libs-5.7.21-1.el6.i686
[root@local ~]# yum install libgcc_s.so.1
已加载插件：fastestmirror
设置安装进程
Loading mirror speeds from cached hostfile
解决依赖关系
--> 执行事务检查
---> Package libgcc.i686 0:4.4.7-18.el6 will be 安装
--> 完成依赖关系计算
依赖关系解决
==================================================================================================================================
软件包 架构 版本 仓库 大小
==================================================================================================================================
正在安装:
libgcc i686 4.4.7-18.el6 base 115 k
事务概要
==================================================================================================================================
Install 1 Package(s)
总下载量：115 k
Installed size: 144 k
确定吗？[y/N]：y
下载软件包：
libgcc-4.4.7-18.el6.i686.rpm | 115 kB 00:00
运行 rpm_check_debug
执行事务测试
事务测试成功
执行事务
Warning: RPMDB altered outside of yum.
正在安装 : libgcc-4.4.7-18.el6.i686 1/1
Verifying : libgcc-4.4.7-18.el6.i686 1/1
已安装:
libgcc.i686 0:4.4.7-18.el6
完毕！
[root@local ~]# yum install libstdc++.so.6
已加载插件：fastestmirror
设置安装进程
Loading mirror speeds from cached hostfile
解决依赖关系
--> 执行事务检查
---> Package libstdc++.i686 0:4.4.7-18.el6 will be 安装
--> 完成依赖关系计算
依赖关系解决
==================================================================================================================================
软件包 架构 版本 仓库 大小
==================================================================================================================================
正在安装:
libstdc++ i686 4.4.7-18.el6 base 303 k
事务概要
==================================================================================================================================
Install 1 Package(s)
总下载量：303 k
Installed size: 908 k
确定吗？[y/N]：y
下载软件包：
libstdc++-4.4.7-18.el6.i686.rpm | 303 kB 00:00
运行 rpm_check_debug
执行事务测试
事务测试成功
执行事务
正在安装 : libstdc++-4.4.7-18.el6.i686 1/1
Verifying : libstdc++-4.4.7-18.el6.i686 1/1
已安装:
libstdc++.i686 0:4.4.7-18.el6
完毕！
[root@local ~]#
[root@local ~]# rpm -ivh mysql-community-libs-5.7.21-1.el6.i686.rpm
Preparing... ########################################### [100%]
1:mysql-community-libs ########################################### [100%]
[root@local ~]# rpm -ivh mysql-community-libs-5.7.21-1.el6.i686.rpm
Preparing... ########################################### [100%]
1:mysql-community-libs ########################################### [100%]
[root@local ~]#
[root@local ~]#
[root@local ~]#
[root@local ~]#
[root@local ~]# rpm -ivh mysql-community-client-5.7.21-1.el6.i686.rpm
error: Failed dependencies:
libncurses.so.5 is needed by mysql-community-client-5.7.21-1.el6.i686
libtinfo.so.5 is needed by mysql-community-client-5.7.21-1.el6.i686
[root@local ~]# yum install libncurses.so.5
已加载插件：fastestmirror
设置安装进程
Loading mirror speeds from cached hostfile
解决依赖关系
--> 执行事务检查
---> Package ncurses-libs.i686 0:5.7-4.20090207.el6 will be 安装
--> 完成依赖关系计算
依赖关系解决
==================================================================================================================================
软件包 架构 版本 仓库 大小
==================================================================================================================================
正在安装:
ncurses-libs i686 5.7-4.20090207.el6 base 249 k
事务概要
==================================================================================================================================
Install 1 Package(s)
总下载量：249 k
Installed size: 687 k
确定吗？[y/N]：y
下载软件包：
ncurses-libs-5.7-4.20090207.el6.i686.rpm | 249 kB 00:00
运行 rpm_check_debug
执行事务测试
事务测试成功
执行事务
Warning: RPMDB altered outside of yum.
正在安装 : ncurses-libs-5.7-4.20090207.el6.i686 1/1
Verifying : ncurses-libs-5.7-4.20090207.el6.i686 1/1
已安装:
ncurses-libs.i686 0:5.7-4.20090207.el6
完毕！
[root@local ~]#
[root@local ~]# rpm -ivh mysql-community-client-5.7.21-1.el6.i686.rpm
Preparing... ########################################### [100%]
1:mysql-community-client ########################################### [100%]
[root@local ~]# rpm -ivh mysql-community-server-5.7.21-1.el6.i686.rpm
error: Failed dependencies:
libaio.so.1 is needed by mysql-community-server-5.7.21-1.el6.i686
libaio.so.1(LIBAIO_0.1) is needed by mysql-community-server-5.7.21-1.el6.i686
libaio.so.1(LIBAIO_0.4) is needed by mysql-community-server-5.7.21-1.el6.i686
libsasl2.so.2 is needed by mysql-community-server-5.7.21-1.el6.i686
mysql-community-client(x86-32) >= 5.7.9 is needed by mysql-community-server-5.7.21-1.el6.i686
[root@local ~]# rom -ivh mysql-community-client-5.7.21-1.el6.i686.rpm
-bash: rom: command not found
[root@local ~]# rpm -ivh mysql-community-client-5.7.21-1.el6.i686.rpm
Preparing... ########################################### [100%]
1:mysql-community-client ########################################### [100%]
[root@local ~]#
[root@local ~]#
[root@local ~]# rpm -ivh mysql-community-server-5.7.21-1.el6.i686.rpm
error: Failed dependencies:
libaio.so.1 is needed by mysql-community-server-5.7.21-1.el6.i686
libaio.so.1(LIBAIO_0.1) is needed by mysql-community-server-5.7.21-1.el6.i686
libaio.so.1(LIBAIO_0.4) is needed by mysql-community-server-5.7.21-1.el6.i686
libsasl2.so.2 is needed by mysql-community-server-5.7.21-1.el6.i686
[root@local ~]# yum install libaio.so.1
已加载插件：fastestmirror
设置安装进程
Loading mirror speeds from cached hostfile
解决依赖关系
--> 执行事务检查
---> Package libaio.i686 0:0.3.107-10.el6 will be 安装
--> 完成依赖关系计算
依赖关系解决
==================================================================================================================================
软件包 架构 版本 仓库 大小
==================================================================================================================================
正在安装:
libaio i686 0.3.107-10.el6 base 21 k
事务概要
==================================================================================================================================
Install 1 Package(s)
总下载量：21 k
Installed size: 31 k
确定吗？[y/N]：y
下载软件包：
libaio-0.3.107-10.el6.i686.rpm | 21 kB 00:00
运行 rpm_check_debug
执行事务测试
事务测试成功
执行事务
Warning: RPMDB altered outside of yum.
正在安装 : libaio-0.3.107-10.el6.i686 1/1
Verifying : libaio-0.3.107-10.el6.i686 1/1
已安装:
libaio.i686 0:0.3.107-10.el6
完毕！
[root@local ~]# yum install libsasl2.so.2
已加载插件：fastestmirror
设置安装进程
Loading mirror speeds from cached hostfile
解决依赖关系
--> 执行事务检查
---> Package cyrus-sasl-lib.i686 0:2.1.23-15.el6_6.2 will be 安装
--> 处理依赖关系 libdb-4.7.so，它被软件包 cyrus-sasl-lib-2.1.23-15.el6_6.2.i686 需要
--> 执行事务检查
---> Package db4.i686 0:4.7.25-22.el6 will be 安装
--> 完成依赖关系计算
依赖关系解决
==================================================================================================================================
软件包 架构 版本 仓库 大小
==================================================================================================================================
正在安装:
cyrus-sasl-lib i686 2.1.23-15.el6_6.2 base 136 k
为依赖而安装:
db4 i686 4.7.25-22.el6 base 581 k
事务概要
==================================================================================================================================
Install 2 Package(s)
总下载量：717 k
Installed size: 1.8 M
确定吗？[y/N]：y
下载软件包：
(1/2): cyrus-sasl-lib-2.1.23-15.el6_6.2.i686.rpm | 136 kB 00:00
(2/2): db4-4.7.25-22.el6.i686.rpm | 581 kB 00:00
----------------------------------------------------------------------------------------------------------------------------------
总计 1.5 MB/s | 717 kB 00:00
运行 rpm_check_debug
执行事务测试
事务测试成功
执行事务
正在安装 : db4-4.7.25-22.el6.i686 1/2
正在安装 : cyrus-sasl-lib-2.1.23-15.el6_6.2.i686 2/2
Verifying : cyrus-sasl-lib-2.1.23-15.el6_6.2.i686 1/2
Verifying : db4-4.7.25-22.el6.i686 2/2
已安装:
cyrus-sasl-lib.i686 0:2.1.23-15.el6_6.2
作为依赖被安装:
db4.i686 0:4.7.25-22.el6
完毕！
[root@local ~]# rpm -ivh mysql-community-server-5.7.21-1.el6.i686.rpm
Preparing... ########################################### [100%]
1:mysql-community-server ########################################### [100%]
[root@local ~]#
启动数据库
[root@local ~]# service mysqld start
初始化 MySQL 数据库： [确定]
正在启动 mysqld： [确定]
[root@local ~]#
从mysql安装日志中找出初始密码
[root@local ~]# grep "password" /var/log/mysqld.log
2017-12-14T16:28:26.885966Z 1 [Note] A temporary password is generated for root@localhost: MDMYVwaDa6!l
2017-12-14T16:28:31.589914Z 2 [Note] Access denied for user 'UNKNOWN_MYSQL_USER'@'localhost' (using password: NO)
[root@local ~]#
登录mysql并修改密码
[root@local ~]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.21
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>
修改密码:(*******为你想要修改的密码)
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('*******');
PS：修改mysql的密码有很多种，有时间再开一篇文章详细介绍