一、安装前这边

1、mysql 5.5以上的版本需要cmake编译安装，所以需要先安装cmake：

yum -y install cmake

2、安装

tar -zxvf mysql-5.5.15.tar.gz

cd mysql-5.5.15

 cmake -DCMAKE_INSTALL_PREFIX:PATH=/data/mysql -DMYSQL_DATADIR=/data/db -DMYSQL_TCP_PORT=3306 -DMYSQL_UNIX_ADDR=/tmp/mysql.sock -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DENABLED_LOCAL_INFILE=1

make

make install

cp support-files/my-medium.cnf /etc/my.cnf

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

PS：cmake的时候如果报错：

   remove CMakeCache.txt and rerun cmake.On Debian/Ubuntu, package name is libncurses5-dev, on Redhat and derivates it is ncurses-devel.
Call Stack (most recent call first):
  cmake/readline.cmake:118 (FIND_CURSES)
  cmake/readline.cmake:214 (MYSQL_USE_BUNDLED_READLINE)
  CMakeLists.txt:268 (MYSQL_CHECK_READLINE)

-- Configuring incomplete, errors occurred!

请安装：yum install ncurses-devel