Linux下安装MySql（版本5.5以上）

开始使用未编译版本（参考：http://www.iteye.com/topic/1128407，注：MySQL5.5以上，安装方法与以前的不同），结果麻烦多多，错误多多。后改用已编译版，方便多了。详细如下（此版依赖libc特定版本，如想通用又不想编译虽用rpm安装，参见http://blog.csdn.net/superchanon/article/details/8546254/）：

从这里下载：http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.26-linux-glibc2.5-x86_64.tar.gz（更多不同版本下载见：http://mirrors.sohu.com/mysql/MySQL-5.6/）

先查看linux libc 版本是否一致：

ls -l /lib/libc.so.6

rpm -qa|grep glibc

查看是否已安装：

rpm -qa|grep -i mysql （-i 忽略大小写）

如已安装则查看安装路径：

ps -ef|grep mysql（具体见http://www.linuxidc.com/Linux/2012-08/69398.htm）

如已安装需先uninstall旧版本：
http://blog.csdn.net/superchanon/article/details/8546254/
groupadd mysql

useradd -r -g mysql mysql

mkdir /usr/local/mysql

tar -xvf mysql-5.6.26-linux-glibc2.5-x86_64.tar.gz -C /usr/local/mysql

cd /usr/local/mysql

chown -R mysql:mysql ./

./scripts/mysql_install_db --user=mysql

chown -R root:root ./

chown -R mysql:mysql data
ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock

cp support-files/mysql.server /etc/init.d/mysql

service mysql start

ps -ef|grep mysql （看到mysql服务说明启动成功）

./bin/mysqladmin -u root password '密码'

ln -s /usr/local/mysql/bin/mysql /usr/local/bin/mysql

开启remote端口给主机访问

/sbin/iptables -I INPUT -p tcp --dport 3306 -j ACCEPT

/etc/init.d/iptables save

service iptables restart

登录mysql设置主机访问权限

mysql -u root -p

use mysql

INSERT INTO `user` ( `Host` , `User` , `Password` , `Select_priv` , `Insert_priv` , `Update_priv` , `Delete_priv` , `Create_priv` , `Drop_priv` , `Reload_priv` , `Shutdown_priv` , `Process_priv` , `File_priv` , `Grant_priv` , `References_priv` , `Index_priv`
, `Alter_priv` , `Show_db_priv` , `Super_priv` , `Create_tmp_table_priv` , `Lock_tables_priv` , `Execute_priv` , `Repl_slave_priv` , `Repl_client_priv` , `ssl_type` , `ssl_cipher` , `x509_issuer` , `x509_subject` , `max_questions` , `max_updates` , `max_connections`
) VALUES ('%', 'root', PASSWORD( '123456' ) , 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', '', '', '', '', '0', '0', '0');

INSERT INTO `user` ( `Host` , `User` , `Password` , `Select_priv` , `Insert_priv` , `Update_priv` , `Delete_priv` , `Create_priv` , `Drop_priv` , `Reload_priv` , `Shutdown_priv` , `Process_priv` , `File_priv` , `Grant_priv` , `References_priv` , `Index_priv`
, `Alter_priv` , `Show_db_priv` , `Super_priv` , `Create_tmp_table_priv` , `Lock_tables_priv` , `Execute_priv` , `Repl_slave_priv` , `Repl_client_priv` , `ssl_type` , `ssl_cipher` , `x509_issuer` , `x509_subject` , `max_questions` , `max_updates` , `max_connections`
) VALUES ('%', 'guest', PASSWORD( '123456' ) , 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', '', '', '', '', '0', '0', '0');

GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY 'password' WITH GRANT OPTION;

GRANT ALL PRIVILEGES ON *.* TO ' root '@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

flush privileges;

select host,user,password from user;

exit

如需要绕过权限检验，可在配置文件（win: my.ini / linux: my.cnf）加上一句：

[mysqld]

skip-grant-tables

重启命令

-- windows:

net stop mysql （start）

-- linux:

service mysql stop （start）

参考：
http://jingyan.baidu.com/album/a378c9609eb652b3282830fd.html?picindex=2 http://www.jb51.net/article/31902.htm
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RPM Installation
http://blog.csdn.net/superchanon/article/details/8546254/
In most cases, you only need to install the MySQL-server and MySQL-client packages to get a functional MySQL installation.

MySQL-devel-VERSION.i386.rpm The libraries and include files that are needed if you want to compile other MySQL clients, such as the Perl modules.

MySQL-shared-VERSION.i386.rpm This package contains the shared libraries (libmysqlclient.so*) that certain languages and applications need to dynamically load and use MySQL.

MySQL-shared-compat-VERSION.i386.rpm This package includes the shared libraries for both MySQL 3.23 and MySQL 4.0. Install this package instead of MySQL-shared if you have applications installed that are dynamically linked against MySQL 3.23 but you want to
upgrade to MySQL 4.0 without breaking the library dependencies.

MySQL-embedded-VERSION.i386.rpm The embedded MySQL server library (from MySQL 4.0).