使用的是linode的centos7系统，安装mysql发现已经默认的是mariadb。
但是不管是使用linode官网说明还是百度搜索到的的根本安装方法无法安装成功。
总是提示这一句：
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
最后通过google 搜索 install mariadb on centos 7得到了安装的关键一步。
现在安装成功，特此备注一下整个安装过程：
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- 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
- ==========================================================================================================
- Package Arch Version Repository Size
- ==========================================================================================================
- Installing:
- mariadb x86_64 1:5.5.37-1.el7_0 updates 8.9 M
- mariadb-bench x86_64 1:5.5.37-1.el7_0 updates 385 k
- mariadb-devel x86_64 1:5.5.37-1.el7_0 updates 744 k
- mariadb-embedded x86_64 1:5.5.37-1.el7_0 updates 3.6 M
- mariadb-embedded-devel x86_64 1:5.5.37-1.el7_0 updates 7.4 M
- mariadb-libs x86_64 1:5.5.37-1.el7_0 updates 752 k
- mariadb-server x86_64 1:5.5.37-1.el7_0 updates 11 M
- mariadb-test x86_64 1:5.5.37-1.el7_0 updates 7.9 M
- Installing for dependencies:
- perl-DBD-MySQL x86_64 4.023-5.el7 base 140 k
- Transaction Summary
- ==========================================================================================================
- Install 8 Packages (+1 Dependent package)
- Total download size: 40 M
- Installed size: 279 M
- Downloading packages:
- (1/9): mariadb-bench-5.5.37-1.el7_0.x86_64.rpm | 385 kB 00:00:00
- (2/9): mariadb-devel-5.5.37-1.el7_0.x86_64.rpm | 744 kB 00:00:00
- (3/9): mariadb-embedded-5.5.37-1.el7_0.x86_64.rpm | 3.6 MB 00:00:00
- (4/9): mariadb-5.5.37-1.el7_0.x86_64.rpm | 8.9 MB 00:00:00
- (5/9): mariadb-libs-5.5.37-1.el7_0.x86_64.rpm | 752 kB 00:00:00
- (6/9): mariadb-server-5.5.37-1.el7_0.x86_64.rpm | 11 MB 00:00:00
- (7/9): mariadb-embedded-devel-5.5.37-1.el7_0.x86_64.rpm | 7.4 MB 00:00:00
- (8/9): mariadb-test-5.5.37-1.el7_0.x86_64.rpm | 7.9 MB 00:00:00
- (9/9): 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_64 1/9
- Installing : 1:mariadb-5.5.37-1.el7_0.x86_64 2/9
- 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_64 6/9
- 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_64 8/9
- 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_64 1/9
- 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_64 3/9
- Verifying : 1:mariadb-libs-5.5.37-1.el7_0.x86_64 4/9
- Verifying : 1:mariadb-bench-5.5.37-1.el7_0.x86_64 5/9
- Verifying : 1:mariadb-5.5.37-1.el7_0.x86_64 6/9
- 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_0 mariadb-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 (c) 2000, 2014, Oracle, Monty Program Ab and others.
- Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
- MariaDB [(none)]> logout
- -> exit
- ->
- -> ;
- ERROR 1064 (42000): 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 [(none)]> 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 (c) 2000, 2014, Oracle, Monty Program Ab and others.
- Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
- MariaDB [(none)]> show databases;
- +--------------------+
- | Database |
- +--------------------+
- | information_schema |
- | mysql |
- | performance_schema |
- | test |
- +--------------------+
- 4 rows in set (0.00 sec)
- MariaDB [(none)]> use test
- Database changed
- MariaDB [test]> show tables;
- Empty set (0.00 sec)
- 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, we'll need the current
- password for the root user. If you've just installed MariaDB, and
- you haven't set the root password yet, the password will be blank,
- so you should just press enter here.
- ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
- Enter current password for root (enter for none):
- 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 you've 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 (c) 2000, 2014, Oracle, Monty Program Ab and others.
- Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
- MariaDB [(none)]> show databases;
- +--------------------+
- | Database |
- +--------------------+
- | information_schema |
- | mysql |
- | performance_schema |
- | zbphp.com |
- +--------------------+
- 4 rows in set (0.00 sec)
- MariaDB [(none)]>
- 原文连接：http://www.centoscn.com/image-text/install/2014/0909/3704.html