环境（centos5 64）
安装所需要系统库相关库文件
gcc gcc-c gcc-g77 autoconf automake zlib* fiex* libxml* ncurses-devel libmcrypt* libtool-ltdl-devel*
yum -y install gcc gcc-c autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel openldap openldap-devel nss_ldap openldap-clients openldap-servers
创建mysql安装目录
[root@localhost ~]# mkdir -p /pub/local/mysql/
创建数据存放目录
[root@localhost ~]# mkdir -p /data/mysql/
下载所需的软件
wget http://www.cmake.org/files/v2.8/cmake-2.8.4.tar.gz
wget http://mirror.csclub.uwaterloo.ca/mysql/Downloads/MySQL-5.5/mysql-5.5.21.tar.gz （地址已经失效、自行谷歌）
安装:
tar zxvf cmake-2.8.4.tar.gz 解压
cd cmake-2.8.4
./configure &&make &&make install 安装
tar zxvf mysql-5.5.21.tar.gz 解压
创建mysql用户、以及用户组
groupadd mysql
useradd -g mysql mysql
cd mysql-5.5.21 切换目录：
cmake -DCMAKE_INSTALL_PREFIX=/pub/local/mysql \
-DMYSQL_UNIX_ADDR=/tmp/mysql.sock \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_EXTRA_CHARSETS:STRING=utf8,gbk \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DWITH_READLINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DMYSQL_DATADIR=/data/mysql \
-DMYSQL_TCP_PORT=3306 \
-DSYSCONFDIR=/etc \
-DINSTALL_SHAREDIR=share
make && make install 安装...
复制配置文件
[root@localhost mysql-5.5.21]# cp support-files/my-medium.cnf /etc/my.cnf
cp support-files/mysql.server /etc/init.d/mysqld 设置启动快捷方式
chown mysql.mysql /etc/my.cnf 权限设置
chmod 755 /etc/init.d/mysqld
scripts/mysql_install_db --user=mysql --basedir=/pub/local/mysql --datadir=/data/mysql/ 赋给文件执行权限
启动mysql服务
[root@localhost mysql-5.5.21]# /etc/init.d/mysqld start //服务器端开关
建一个一个软连接：
ln -s /usr/local/mysql/bin/mysql /usr/bin