RHEL5.6环境下yum安装MySQL记录，2017年2月20日

1、卸载原有的MySQL

rpm -qa命令查询是否安装了MySQL

[root@localhost mysql]# rpm -qa|grep mysql
mysql-server-5.0.77-4.el5_5.4
mysql-5.0.77-4.el5_5.4

使用rpm -e命令卸载安装包，如果卸载时提示依赖可以增加“--nodeps”参数；

如果想删除依赖项则直接卸载依赖项后再删除相应的包。

[root@localhost mysql]# rpm -e mysql-server-5.0.77-4.el5_5.4
[root@localhost mysql]# rpm -e mysql-5.0.77-4.el5_5.4
error: Failed dependencies:libmysqlclient.so.15()(64bit) is needed by (installed) perl-DBD-MySQL-3.0007-2.el5.x86_64libmysqlclient.so.15(libmysqlclient_15)(64bit) is needed by (installed) perl-DBD-MySQL-3.0007-2.el5.x86_64
[root@localhost mysql]# rpm -qa|grep MySQL
perl-DBD-MySQL-3.0007-2.el5
[root@localhost mysql]# rpm -e perl-DBD-MySQL-3.0007-2.el5
[root@localhost mysql]# rpm -e mysql-5.0.77-4.el5_5.4

2、yum安装MySQL

查询yum源中是否具有MySQL服务。

[root@localhost yum.repos.d]# yum list | grep mysql
This system is not registered with RHN.
RHN support will be disabled.apr-util-mysql.x86_64                      1.2.7-11.el5_5.2            base
bytefx-data-mysql.x86_64                   1.2.4-2.el5.centos          extras
freeradius-mysql.x86_64                    1.1.3-1.6.el5               base
freeradius2-mysql.x86_64                   2.1.12-5.el5                base
libdbi-dbd-mysql.x86_64                    0.8.1a-1.2.2                base
mod_auth_mysql.x86_64                      1:3.0.0-3.2.el5_3           base
mysql.i386                                 5.0.95-5.el5_9              base
mysql.x86_64                               5.0.95-5.el5_9              base
mysql-bench.x86_64                         5.0.95-5.el5_9              base
mysql-connector-odbc.x86_64                3.51.26r1127-2.el5          base
mysql-connector-odbc64.x86_64              5.1.8-1.el5                 base
mysql-devel.i386                           5.0.95-5.el5_9              base
mysql-devel.x86_64                         5.0.95-5.el5_9              base
mysql-server.x86_64                        5.0.95-5.el5_9              base
mysql-test.x86_64                          5.0.95-5.el5_9              base
mysql51.x86_64                             1-9.el5                     base
mysql51-build.x86_64                       1-9.el5                     base
mysql51-mysql.x86_64                       5.1.70-1.el5                base
mysql51-mysql-bench.x86_64                 5.1.70-1.el5                base
mysql51-mysql-libs.x86_64                  5.1.70-1.el5                base
mysql51-mysql-server.x86_64                5.1.70-1.el5                base
mysql51-mysql-test.x86_64                  5.1.70-1.el5                base
mysql51-runtime.x86_64                     1-9.el5                     base
mysql55.x86_64                             1-12.el5                    base
mysql55-build.x86_64                       1-12.el5                    base
mysql55-mysql.x86_64                       5.5.45-1.el5                update
mysql55-mysql-bench.x86_64                 5.5.45-1.el5                update
mysql55-mysql-devel.i386                   5.5.45-1.el5                update
mysql55-mysql-devel.x86_64                 5.5.45-1.el5                update
mysql55-mysql-libs.x86_64                  5.5.45-1.el5                update
mysql55-mysql-server.x86_64                5.5.45-1.el5                update
mysql55-mysql-test.x86_64                  5.5.45-1.el5                update
mysql55-runtime.x86_64                     1-12.el5                    base
pdns-backend-mysql.x86_64                  2.9.21-4.el5.centos         extras
php-mysql.x86_64                           5.1.6-45.el5_11             update
php-pear-MDB2-Driver-mysql.noarch          1.4.1-3.el5.centos          extras
php53-mysql.x86_64                         5.3.3-26.el5_11             update
qt4-mysql.x86_64                           4.2.1-1.el5_7.1             base
rsyslog-mysql.x86_64                       3.22.1-7.el5                base
rsyslog5-mysql.x86_64                      5.8.12-7.el5_11             update
[root@localhost yum.repos.d]#

安装MySQL及其相关服务

yum install -y mysql-server mysql mysql-devel

[root@localhost yum.repos.d]# rpm -qa|grep mysql
mysql-5.0.95-5.el5_9
mysql-devel-5.0.95-5.el5_9
mysql-devel-5.0.95-5.el5_9
mysql-5.0.95-5.el5_9
mysql-server-5.0.95-5.el5_9

可以看到mysql安装的包。

3、配置MySQL

3.1、查看MySQL服务状态

[root@localhost yum.repos.d]# service mysqld status
mysqld is stopped

3.2、启动MySQL服务

[root@localhost yum.repos.d]# service mysqld start
Initializing MySQL database:  Installing MySQL system tables...
OK
Filling help tables...
OKTo start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your systemPLEASE 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 localhost.localdomain password 'new-password'Alternatively you can run:
/usr/bin/mysql_secure_installationwhich 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 mysql-test ; perl mysql-test-run.plPlease report any problems with the /usr/bin/mysqlbug script!The latest information about MySQL is available on the web at
http://www.mysql.com
Support MySQL by buying support/licenses at http://shop.mysql.com
                                                           [  OK  ]
Starting mysqld:                                           [  OK  ]
[root@localhost yum.repos.d]#

查看MySQL服务状态：

[root@localhost yum.repos.d]# service mysqld status
mysqld (pid 5806) is running...

在终端中敲入mysql命令可以直接进入mysql命令行，此时MySQL没有设置登录密码。

[root@localhost yum.repos.d]# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.0.95 Source distributionCopyright (c) 2000, 2011, 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>

3.3、启用MySQL登录密码：

[root@localhost yum.repos.d]# mysqladmin -u root password "passw0rd"

再次敲入mysql提示登录信息：

[root@localhost yum.repos.d]# mysql
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

使用密码登录MySQL：

[root@localhost yum.repos.d]# mysql mysql -u root -p
Enter password:
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -AWelcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.0.95 Source distributionCopyright (c) 2000, 2011, 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>

3.4、允许root账号远程登录：

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'passw0rd' WITH GRANT OPTION;
Query OK, 0 rows affected (0.00 sec)

转载于:https://www.cnblogs.com/xusweeter/p/6422104.html

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