我的centos在安装时就把mysqld装上了,启用到方法很简单:

金沙城中心赌场 ,centos 6.9安装mysql,centos6.9mysql

1、确认mysql是否已安装,有下面的代码可知

[[email protected] zjl]# yum list installed mysql*
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
 * base: mirrors.zju.edu.cn
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Installed Packages
MySQL-python.x86_64 1.2.3-0.3.c1.1.el6 @base                        
mysql-libs.x86_64   5.1.73-8.el6_8     @anaconda-CentOS-201703281317.x86_64/6.9

2、卸载已安装的mysql,建议使用yum命令,因为yum命令可以自动删除与mysql相关的依赖;如果使用rpm命令,则还需要手动去删除和mysql相关的文件,比较麻烦

[[email protected] zjl]# yum remove MySQL-python.x86_64 mysql-libs.x86_64
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Remove Process
Resolving Dependencies
--> Running transaction check
---> Package MySQL-python.x86_64 0:1.2.3-0.3.c1.1.el6 will be erased
--> Processing Dependency: MySQL-python for package: cloudera-manager-agent-5.11.1-1.cm5111.p0.9.el6.x86_64
---> Package mysql-libs.x86_64 0:5.1.73-8.el6_8 will be erased
--> Processing Dependency: libmysqlclient.so.16()(64bit) for package: 2:postfix-2.6.6-8.el6.x86_64
--> Processing Dependency: libmysqlclient.so.16(libmysqlclient_16)(64bit) for package: 2:postfix-2.6.6-8.el6.x86_64
--> Processing Dependency: mysql-libs for package: 2:postfix-2.6.6-8.el6.x86_64
--> Running transaction check
---> Package cloudera-manager-agent.x86_64 0:5.11.1-1.cm5111.p0.9.el6 will be erased
---> Package postfix.x86_64 2:2.6.6-8.el6 will be erased
--> Processing Dependency: /usr/sbin/sendmail for package: redhat-lsb-core-4.0-7.el6.centos.x86_64
--> Processing Dependency: /usr/sbin/sendmail for package: cronie-1.4.4-16.el6_8.2.x86_64
--> Running transaction check
---> Package cronie.x86_64 0:1.4.4-16.el6_8.2 will be erased
--> Processing Dependency: cronie = 1.4.4-16.el6_8.2 for package: cronie-anacron-1.4.4-16.el6_8.2.x86_64
---> Package redhat-lsb-core.x86_64 0:4.0-7.el6.centos will be erased
--> Processing Dependency: redhat-lsb-core(x86-64) = 4.0 for package: redhat-lsb-printing-4.0-7.el6.centos.x86_64
--> Processing Dependency: redhat-lsb-core(x86-64) = 4.0-7.el6.centos for package: redhat-lsb-4.0-7.el6.centos.x86_64
--> Processing Dependency: redhat-lsb-core(x86-64) = 4.0 for package: redhat-lsb-graphics-4.0-7.el6.centos.x86_64
--> Running transaction check
---> Package cronie-anacron.x86_64 0:1.4.4-16.el6_8.2 will be erased
---> Package redhat-lsb.x86_64 0:4.0-7.el6.centos will be erased
--> Processing Dependency: redhat-lsb(x86-64) = 4.0-7.el6.centos for package: redhat-lsb-compat-4.0-7.el6.centos.x86_64
---> Package redhat-lsb-graphics.x86_64 0:4.0-7.el6.centos will be erased
---> Package redhat-lsb-printing.x86_64 0:4.0-7.el6.centos will be erased
--> Running transaction check
---> Package redhat-lsb-compat.x86_64 0:4.0-7.el6.centos will be erased
--> Processing Dependency: /etc/cron.d for package: crontabs-1.10-33.el6.noarch
--> Processing Dependency: /etc/cron.d for package: sysstat-9.0.4-33.el6.x86_64
--> Restarting Dependency Resolution with new changes.
--> Running transaction check
---> Package crontabs.noarch 0:1.10-33.el6 will be erased
---> Package sysstat.x86_64 0:9.0.4-33.el6 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

====================================================================
 Package                Arch   Version                  Repository
                                                               Size
====================================================================
Removing:
 MySQL-python           x86_64 1.2.3-0.3.c1.1.el6       @base 246 k
 mysql-libs             x86_64 5.1.73-8.el6_8           @anaconda-CentOS-201703281317.x86_64/6.9
                                                              4.0 M
Removing for dependencies:
 cloudera-manager-agent x86_64 5.11.1-1.cm5111.p0.9.el6 @/cloudera-manager-agent-5.11.1-1.cm5111.p0.9.el6.x86_64
                                                               71 M
 cronie                 x86_64 1.4.4-16.el6_8.2         @anaconda-CentOS-201703281317.x86_64/6.9
                                                              174 k
 cronie-anacron         x86_64 1.4.4-16.el6_8.2         @anaconda-CentOS-201703281317.x86_64/6.9
                                                               43 k
 crontabs               noarch 1.10-33.el6              @anaconda-CentOS-201703281317.x86_64/6.9
                                                              2.4 k
 postfix                x86_64 2:2.6.6-8.el6            @anaconda-CentOS-201703281317.x86_64/6.9
                                                              9.7 M
 redhat-lsb             x86_64 4.0-7.el6.centos         @anaconda-CentOS-201703281317.x86_64/6.9
                                                              0.0  
 redhat-lsb-compat      x86_64 4.0-7.el6.centos         @anaconda-CentOS-201703281317.x86_64/6.9
                                                              0.0  
 redhat-lsb-core        x86_64 4.0-7.el6.centos         @anaconda-CentOS-201703281317.x86_64/6.9
                                                               22 k
 redhat-lsb-graphics    x86_64 4.0-7.el6.centos         @anaconda-CentOS-201703281317.x86_64/6.9
                                                              0.0  
 redhat-lsb-printing    x86_64 4.0-7.el6.centos         @anaconda-CentOS-201703281317.x86_64/6.9
                                                              0.0  
 sysstat                x86_64 9.0.4-33.el6             @anaconda-CentOS-201703281317.x86_64/6.9
                                                              826 k

Transaction Summary
====================================================================
Remove       13 Package(s)

Installed size: 86 M
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Warning: RPMDB altered outside of yum.
  Erasing    : redhat-lsb-compat-4.0-7.el6.centos.x86_64       1/13 
  Erasing    : redhat-lsb-4.0-7.el6.centos.x86_64              2/13 
  Erasing    : cloudera-manager-agent-5.11.1-1.cm5111.p0.9.    3/13 
warning: /etc/cloudera-scm-agent/config.ini saved as /etc/cloudera-scm-agent/config.ini.rpmsave
  Erasing    : redhat-lsb-graphics-4.0-7.el6.centos.x86_64     4/13 
  Erasing    : redhat-lsb-printing-4.0-7.el6.centos.x86_64     5/13 
  Erasing    : redhat-lsb-core-4.0-7.el6.centos.x86_64         6/13 
/var/tmp/rpm-tmp.jLbJUk: line 1: lsb_release: command not found
  Erasing    : MySQL-python-1.2.3-0.3.c1.1.el6.x86_64          7/13 
  Erasing    : sysstat-9.0.4-33.el6.x86_64                     8/13 
  Erasing    : crontabs-1.10-33.el6.noarch                     9/13 
  Erasing    : cronie-anacron-1.4.4-16.el6_8.2.x86_64         10/13 
  Erasing    : cronie-1.4.4-16.el6_8.2.x86_64                 11/13 
  Erasing    : 2:postfix-2.6.6-8.el6.x86_64                   12/13 
  Erasing    : mysql-libs-5.1.73-8.el6_8.x86_64               13/13 
  Verifying  : redhat-lsb-printing-4.0-7.el6.centos.x86_64     1/13 
  Verifying  : cronie-anacron-1.4.4-16.el6_8.2.x86_64          2/13 
  Verifying  : cronie-1.4.4-16.el6_8.2.x86_64                  3/13 
  Verifying  : 2:postfix-2.6.6-8.el6.x86_64                    4/13 
  Verifying  : redhat-lsb-4.0-7.el6.centos.x86_64              5/13 
  Verifying  : redhat-lsb-core-4.0-7.el6.centos.x86_64         6/13 
  Verifying  : cloudera-manager-agent-5.11.1-1.cm5111.p0.9.    7/13 
  Verifying  : crontabs-1.10-33.el6.noarch                     8/13 
  Verifying  : redhat-lsb-compat-4.0-7.el6.centos.x86_64       9/13 
  Verifying  : MySQL-python-1.2.3-0.3.c1.1.el6.x86_64         10/13 
  Verifying  : redhat-lsb-graphics-4.0-7.el6.centos.x86_64    11/13 
  Verifying  : sysstat-9.0.4-33.el6.x86_64                    12/13 
  Verifying  : mysql-libs-5.1.73-8.el6_8.x86_64               13/13 

Removed:
  MySQL-python.x86_64 0:1.2.3-0.3.c1.1.el6                          
  mysql-libs.x86_64 0:5.1.73-8.el6_8                                

Dependency Removed:
  cloudera-manager-agent.x86_64 0:5.11.1-1.cm5111.p0.9.el6          
  cronie.x86_64 0:1.4.4-16.el6_8.2                                  
  cronie-anacron.x86_64 0:1.4.4-16.el6_8.2                          
  crontabs.noarch 0:1.10-33.el6                                     
  postfix.x86_64 2:2.6.6-8.el6                                      
  redhat-lsb.x86_64 0:4.0-7.el6.centos                              
  redhat-lsb-compat.x86_64 0:4.0-7.el6.centos                       
  redhat-lsb-core.x86_64 0:4.0-7.el6.centos                         
  redhat-lsb-graphics.x86_64 0:4.0-7.el6.centos                     
  redhat-lsb-printing.x86_64 0:4.0-7.el6.centos                     
  sysstat.x86_64 0:9.0.4-33.el6                                     

Complete!

3、用whereis命令查找mysql相关的文件,因为步骤2用yum来卸载,所以mysql被清理得很干净;如果使用rpm将会很麻烦,有很多的文件需要手动清除

[[email protected] zjl]# whereis mysql
mysql:

4、查看系统中的mysql安装包

[[email protected] zjl]# yum list mysql*
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
 * base: mirrors.zju.edu.cn
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Available Packages
MySQL-python.x86_64                                                                                        1.2.3-0.3.c1.1.el6                                                                                base
mysql.x86_64                                                                                               5.1.73-8.el6_8                                                                                    base
mysql-bench.x86_64                                                                                         5.1.73-8.el6_8                                                                                    base
mysql-connector-java.noarch                                                                                1:5.1.17-6.el6                                                                                    base
mysql-connector-odbc.x86_64                                                                                5.1.5r1144-7.el6                                                                                  base
mysql-devel.i686                                                                                           5.1.73-8.el6_8                                                                                    base
mysql-devel.x86_64                                                                                         5.1.73-8.el6_8                                                                                    base
mysql-embedded.i686                                                                                        5.1.73-8.el6_8                                                                                    base
mysql-embedded.x86_64                                                                                      5.1.73-8.el6_8                                                                                    base
mysql-embedded-devel.i686                                                                                  5.1.73-8.el6_8                                                                                    base
mysql-embedded-devel.x86_64                                                                                5.1.73-8.el6_8                                                                                    base
mysql-libs.i686                                                                                            5.1.73-8.el6_8                                                                                    base
mysql-libs.x86_64                                                                                          5.1.73-8.el6_8                                                                                    base
mysql-server.x86_64                                                                                        5.1.73-8.el6_8                                                                                    base
mysql-test.x86_64                                                                                          5.1.73-8.el6_8                                                                                    base

5、选择mysql-server来安装

[[email protected] zjl]# yum install mysql-server
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
 * base: mirrors.zju.edu.cn
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package mysql-server.x86_64 0:5.1.73-8.el6_8 will be installed
--> Processing Dependency: mysql = 5.1.73-8.el6_8 for package: mysql-server-5.1.73-8.el6_8.x86_64
--> Processing Dependency: perl-DBI for package: mysql-server-5.1.73-8.el6_8.x86_64
--> Processing Dependency: perl-DBD-MySQL for package: mysql-server-5.1.73-8.el6_8.x86_64
--> Processing Dependency: perl(DBI) for package: mysql-server-5.1.73-8.el6_8.x86_64
--> Processing Dependency: libmysqlclient_r.so.16(libmysqlclient_16)(64bit) for package: mysql-server-5.1.73-8.el6_8.x86_64
--> Processing Dependency: libmysqlclient.so.16(libmysqlclient_16)(64bit) for package: mysql-server-5.1.73-8.el6_8.x86_64
--> Processing Dependency: libmysqlclient_r.so.16()(64bit) for package: mysql-server-5.1.73-8.el6_8.x86_64
--> Processing Dependency: libmysqlclient.so.16()(64bit) for package: mysql-server-5.1.73-8.el6_8.x86_64
--> Running transaction check
---> Package mysql.x86_64 0:5.1.73-8.el6_8 will be installed
---> Package mysql-libs.x86_64 0:5.1.73-8.el6_8 will be installed
---> Package perl-DBD-MySQL.x86_64 0:4.013-3.el6 will be installed
---> Package perl-DBI.x86_64 0:1.609-4.el6 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=================================================================================================================================================================================================================
 Package                                                Arch                                           Version                                                Repository                                    Size
=================================================================================================================================================================================================================
Installing:
 mysql-server                                           x86_64                                         5.1.73-8.el6_8                                         base                                         8.6 M
Installing for dependencies:
 mysql                                                  x86_64                                         5.1.73-8.el6_8                                         base                                         895 k
 mysql-libs                                             x86_64                                         5.1.73-8.el6_8                                         base                                         1.2 M
 perl-DBD-MySQL                                         x86_64                                         4.013-3.el6                                            base                                         134 k
 perl-DBI                                               x86_64                                         1.609-4.el6                                            base                                         705 k

Transaction Summary
=================================================================================================================================================================================================================
Install       5 Package(s)

Total download size: 12 M
Installed size: 33 M
Is this ok [y/N]: 

6、选择y继续安装

Is this ok [y/N]: y
Downloading Packages:
(1/5): mysql-5.1.73-8.el6_8.x86_64.rpm                                                                                                                                                    | 895 kB     00:00     
(2/5): mysql-libs-5.1.73-8.el6_8.x86_64.rpm                                                                                                                                               | 1.2 MB     00:00     
(3/5): mysql-server-5.1.73-8.el6_8.x86_64.rpm                                                                                                                                             | 8.6 MB     00:02     
(4/5): perl-DBD-MySQL-4.013-3.el6.x86_64.rpm                                                                                                                                              | 134 kB     00:00     
(5/5): perl-DBI-1.609-4.el6.x86_64.rpm                                                                                                                                                    | 705 kB     00:00     
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                            2.2 MB/s |  12 MB     00:05     
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : mysql-libs-5.1.73-8.el6_8.x86_64                                                                                                                                                              1/5 
  Installing : perl-DBI-1.609-4.el6.x86_64                                                                                                                                                                   2/5 
  Installing : perl-DBD-MySQL-4.013-3.el6.x86_64                                                                                                                                                             3/5 
  Installing : mysql-5.1.73-8.el6_8.x86_64                                                                                                                                                                   4/5 
  Installing : mysql-server-5.1.73-8.el6_8.x86_64                                                                                                                                                            5/5 
  Verifying  : perl-DBD-MySQL-4.013-3.el6.x86_64                                                                                                                                                             1/5 
  Verifying  : mysql-libs-5.1.73-8.el6_8.x86_64                                                                                                                                                              2/5 
  Verifying  : mysql-server-5.1.73-8.el6_8.x86_64                                                                                                                                                            3/5 
  Verifying  : mysql-5.1.73-8.el6_8.x86_64                                                                                                                                                                   4/5 
  Verifying  : perl-DBI-1.609-4.el6.x86_64                                                                                                                                                                   5/5 

Installed:
  mysql-server.x86_64 0:5.1.73-8.el6_8                                                                                                                                                                           

Dependency Installed:
  mysql.x86_64 0:5.1.73-8.el6_8                    mysql-libs.x86_64 0:5.1.73-8.el6_8                    perl-DBD-MySQL.x86_64 0:4.013-3.el6                    perl-DBI.x86_64 0:1.609-4.el6                   

Complete!

7、启动mysql服务

[[email protected] zjl]# service mysqld start
Initializing MySQL database:  Installing MySQL system tables...
OK
Filling help tables...
OK

To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:

/usr/bin/mysqladmin -u root password 'new-password'
/usr/bin/mysqladmin -u root -h cdh1.zjl.com password 'new-password'

Alternatively you can run:
/usr/bin/mysql_secure_installation

which will also give you the option of removing the test
databases and anonymous user created by default.  This is
strongly recommended for production servers.

See the manual for more instructions.

You can start the MySQL daemon with:
cd /usr ; /usr/bin/mysqld_safe &

You can test the MySQL daemon with mysql-test-run.pl
cd /usr/mysql-test ; perl mysql-test-run.pl

Please report any problems with the /usr/bin/mysqlbug script!

                                                           [  OK  ]
Starting mysqld:                                           [  OK  ]

8、连接一下试一下,直接mysql然后\q关闭连接

[[email protected] zjl]# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, 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> \q
Bye

9、设置mysql开机启动

[[email protected] zjl]# chkconfig mysqld on

10、开启3306端口,并保存

[[email protected] zjl]# /sbin/iptables -I INPUT -p tcp --dport 3306 -j ACCEPT
[[email protected] zjl]# /etc/rc.d/init.d/iptables save

11、连接mysql设置密码

[[email protected] zjl]# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, 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;
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('123') where user='root';
Query OK, 3 rows affected (0.02 sec)
Rows matched: 3  Changed: 3  Warnings: 0

mysql> flush privileges;
Query OK, 0 rows affected (0.02 sec)

mysql> \q
Bye

12、重启mysql服务

[[email protected] zjl]# service mysqld restart
Stopping mysqld:                                           [  OK  ]
Starting mysqld:                                           [  OK  ]

 

6.9安装mysql,centos6.9mysql
1、确认mysql是否已安装,有下面的代码可知
[[email protected]
zjl]# yum list installed mysql* Loaded plugins: fastestmirror,
refresh -…

在service中打开mysqld

在终端中设置root密码:

[html]
$ mysqladmin -u root -p password ****** 

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