centos 7安装mysql5.5和安装 mariadb 的正确命令

腾讯Tencentos系统20150428 官方最新版种类：手机工具大小：120.6M语言：中文 评分：10.0标签：立即下载

以前的Linux系统中数据库大多数是mysql，不过自从被sun回收之后，就没用集成在centos这类开源Linux系统中了，那样假如想用的话就需要自己安装了，第一centos7 已经不支持mysql，由于收费了你了解，所以内部集成了mariadb，而安装mysql的话会和mariadb的文件冲突，所以需要先卸载掉mariadb，以下为卸载mariadb，安装mysql的步骤。

#列出所有被安装的rpm package
rpm -qa | grep mariadb

#卸载

rpm -e mariadb-libs-5.5.37-1.el7_0.x86_64

错误：依靠测试失败：
libmysqlclient.so.18 被 postfix-2:2.10.1-6.el7.x86_64 需要
libmysqlclient.so.18 被 postfix-2:2.10.1-6.el7.x86_64 需要

#强制卸载，由于没--nodeps

rpm -e --nodeps mariadb-libs-5.5.37-1.el7_0.x86_64

#安装mysql5.5.39的rpm包

rpm -ivh /home/liwei/MySQL-server-5.5.39-2.el6.x86_64.rpm

rpm -ivh /home/liwei/MySQL-client-5.5.39-2.el6.x86_64.rpm

#拷贝配置文件

cp /usr/share/mysql/my-medium.cnf /etc/my.cnf，改名为my.cnf作为mysql配置文件。

#修改响应的配置文件

vim/etc/my.cnf

#把mysql的data拷贝到拟定的目录

mv /var/lib/mysql/home/mysql/data/

还应该注意目录的属主和权限。

MYSQL启动后报：ERROR! The server quit without updating PID file错误的问题解决

1、权限不够：chown -R mysql:mysql /home/mysql/data” “chmod -R 755 /home/mysql/data

2、centos7的selinux问题：打开/etc/selinux/config，把SELINUX=enforcing改为SELINUX

centos7 安装 mariadb 的正确命令

用的是linode的centos7系统，安装mysql发现已经默认的是mariadb。

但无论是用linode官方网站说明还是百度搜索到的的根本安装办法没办法安装成功。

一直提示这一句：

ERROR 2002 : Cant connect to local MySQL server through socket /var/lib/mysql/mysql.sock

最后通过谷歌 搜索 install mariadb on centos 7得到了安装的重点一步。

目前安装成功，特此备注一下整个安装过程：

[php] view plaincopy在CODE上查询代码片派生到我的代码片

mysql:[root@localhost ~]# yum -y install mariadb*

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* base: mirrors.linode.com

* extras: mirrors.linode.com

* updates: mirrors.linode.com

Resolving Dependencies

-- Running transaction check

--- Package mariadb.x86_64 1:5.5.37-1.el7_0 will be installed

--- Package mariadb-bench.x86_64 1:5.5.37-1.el7_0 will be installed

--- Package mariadb-devel.x86_64 1:5.5.37-1.el7_0 will be installed

--- Package mariadb-embedded.x86_64 1:5.5.37-1.el7_0 will be installed

--- Package mariadb-embedded-devel.x86_64 1:5.5.37-1.el7_0 will be installed

--- Package mariadb-libs.x86_64 1:5.5.37-1.el7_0 will be installed

--- Package mariadb-server.x86_64 1:5.5.37-1.el7_0 will be installed

-- Processing Dependency: perl-DBD-MySQL for package: 1:mariadb-server-5.5.37-1.el7_0.x86_64

--- Package mariadb-test.x86_64 1:5.5.37-1.el7_0 will be installed

-- Running transaction check

--- Package perl-DBD-MySQL.x86_64 0:4.023-5.el7 will be installed

-- Finished Dependency Resolution

Dependencies Resolved

==========================================================================================================

PackageArch Version Repository Size

==========================================================================================================

Installing:

mariadbx86_641:5.5.37-1.el7_0updates8.9 M

mariadb-bench x86_641:5.5.37-1.el7_0updates385 k

mariadb-devel x86_641:5.5.37-1.el7_0updates744 k

mariadb-embedded x86_641:5.5.37-1.el7_0updates3.6 M

mariadb-embedded-develx86_641:5.5.37-1.el7_0updates7.4 M

mariadb-libs x86_641:5.5.37-1.el7_0updates752 k

mariadb-serverx86_641:5.5.37-1.el7_0updates 11 M

mariadb-test x86_641:5.5.37-1.el7_0updates7.9 M

Installing for dependencies:

perl-DBD-MySQLx86_644.023-5.el7 base140 k

Transaction Summary

==========================================================================================================

Install 8 Packages

Total download size: 40 M

Installed size: 279 M

Downloading packages:

: mariadb-bench-5.5.37-1.el7_0.x86_64.rpm | 385 kB 00:00:00

: mariadb-devel-5.5.37-1.el7_0.x86_64.rpm | 744 kB 00:00:00

: mariadb-embedded-5.5.37-1.el7_0.x86_64.rpm | 3.6 MB 00:00:00

: mariadb-5.5.37-1.el7_0.x86_64.rpm| 8.9 MB 00:00:00

: mariadb-libs-5.5.37-1.el7_0.x86_64.rpm | 752 kB 00:00:00

: mariadb-server-5.5.37-1.el7_0.x86_64.rpm| 11 MB 00:00:00

: mariadb-embedded-devel-5.5.37-1.el7_0.x86_64.rpm| 7.4 MB 00:00:00

: mariadb-test-5.5.37-1.el7_0.x86_64.rpm | 7.9 MB 00:00:00

: perl-DBD-MySQL-4.023-5.el7.x86_64.rpm| 140 kB 00:00:00

----------------------------------------------------------------------------------------------------------

Total 36 MB/s | 40 MB 00:00:01

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

Installing : 1:mariadb-libs-5.5.37-1.el7_0.x86_641/9

Installing : 1:mariadb-5.5.37-1.el7_0.x86_642/9

Installing : perl-DBD-MySQL-4.023-5.el7.x86_64 3/9

Installing : 1:mariadb-server-5.5.37-1.el7_0.x86_64 4/9

Installing : 1:mariadb-devel-5.5.37-1.el7_0.x86_64 5/9

Installing : 1:mariadb-embedded-5.5.37-1.el7_0.x86_646/9

Installing : 1:mariadb-embedded-devel-5.5.37-1.el7_0.x86_64 7/9

Installing : 1:mariadb-test-5.5.37-1.el7_0.x86_648/9

Installing : 1:mariadb-bench-5.5.37-1.el7_0.x86_64 9/9

Verifying : 1:mariadb-test-5.5.37-1.el7_0.x86_641/9

Verifying : 1:mariadb-embedded-devel-5.5.37-1.el7_0.x86_64 2/9

Verifying : 1:mariadb-embedded-5.5.37-1.el7_0.x86_643/9

Verifying : 1:mariadb-libs-5.5.37-1.el7_0.x86_644/9

Verifying : 1:mariadb-bench-5.5.37-1.el7_0.x86_64 5/9

Verifying : 1:mariadb-5.5.37-1.el7_0.x86_646/9

Verifying : 1:mariadb-server-5.5.37-1.el7_0.x86_64 7/9

Verifying : perl-DBD-MySQL-4.023-5.el7.x86_64 8/9

Verifying : 1:mariadb-devel-5.5.37-1.el7_0.x86_64 9/9

Installed:

mariadb.x86_64 1:5.5.37-1.el7_0mariadb-bench.x86_64 1:5.5.37-1.el7_0

mariadb-devel.x86_64 1:5.5.37-1.el7_0 mariadb-embedded.x86_64 1:5.5.37-1.el7_0

mariadb-embedded-devel.x86_64 1:5.5.37-1.el7_0 mariadb-libs.x86_64 1:5.5.37-1.el7_0

mariadb-server.x86_64 1:5.5.37-1.el7_0 mariadb-test.x86_64 1:5.5.37-1.el7_0

Dependency Installed:

perl-DBD-MySQL.x86_64 0:4.023-5.el7

Complete!

[root@localhost ~]# systemctl start mariadb.service

[root@localhost ~]# systemctl enable mariadb.service

ln -s /usr/lib/systemd/system/mariadb.service /etc/systemd/system/multi-user.target.wants/mariadb.servi

ce

[root@localhost ~]# mysql

Welcome to the MariaDB monitor. Commands end with ; or \g.

Your MariaDB connection id is 2

Server version: 5.5.37-MariaDB MariaDB Server

Copyright 2000, 2014, Oracle, Monty Program Ab and others.

Type help; or \h for help. Type \c to clear the current input statement.

MariaDB [] logout

- exit

-

- ;

ERROR 1064 : You have an error in your SQL syntax; check the manual that corresponds to your MariaD

B server version for the right syntax to use near logout

exit at line 1

MariaDB [] exit

Bye

[root@localhost ~]# systemctl enable mariadb.service

[root@localhost ~]# mysql

Welcome to the MariaDB monitor. Commands end with ; or \g.

Your MariaDB connection id is 3

Server version: 5.5.37-MariaDB MariaDB Server

Copyright 2000, 2014, Oracle, Monty Program Ab and others.

Type help; or \h for help. Type \c to clear the current input statement.

MariaDB [] show databases;

+--------------------+

| Database|

+--------------------+

| information_schema |

| mysql |

| performance_schema |

| test|

+--------------------+

4 rows in set

MariaDB [] use test

Database changed

MariaDB [test] show tables;

Empty set

MariaDB [test] exit

Bye

[root@localhost ~]# mysql_secure_installation

/usr/bin/mysql_secure_installation: line 379: find_mysql_client: command not found

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB

SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, well need the current

password for the root user. If youve just installed MariaDB, and

you havent set the root password yet, the password will be blank,

so you should just press enter here.

ERROR 1045 : Access denied for user root@localhost

Enter current password for root :

OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB

root user without the proper authorisation.

Set root password? [Y/n] y

New password:

Re-enter new password:

Password updated successfully!

Reloading privilege tables..

... Success!

By default, a MariaDB installation has an anonymous user, allowing anyone

to log into MariaDB without having to have a user account created for

them. This is intended only for testing, and to make the installation

go a bit smoother. You should remove them before moving into a

production environment.

Remove anonymous users? [Y/n] y

... Success!

Normally, root should only be allowed to connect from localhost. This

ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y

... Success!

By default, MariaDB comes with a database named test that anyone can

access. This is also intended only for testing, and should be removed

before moving into a production environment.

Remove test database and access to it? [Y/n] y

- Dropping test database...

... Success!

- Removing privileges on test database...

... Success!

Reloading the privilege tables will ensure that all changes made so far

will take effect immediately.

Reload privilege tables now? [Y/n] y

... Success!

Cleaning up...

All done! If youve completed all of the above steps, your MariaDB

installation should now be secure.

Thanks for using MariaDB!

[root@localhost ~]# mysql -uroot -p

Enter password:

Welcome to the MariaDB monitor. Commands end with ; or \g.

Your MariaDB connection id is 15

Server version: 5.5.37-MariaDB MariaDB Server

Copyright 2000, 2014, Oracle, Monty Program Ab and others.

Type help; or \h for help. Type \c to clear the current input statement.

MariaDB [] show databases;

+--------------------+

| Database|

+--------------------+

| information_schema |

| mysql |

| performance_schema |

| zbphp.com |

+--------------------+

4 rows in set

MariaDB []

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