linux下搭建LNMP(linux+nginx+mysql+php)环境之mysql5.5安装；

首先安装依赖包：

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 ntpd nmap patch cmake bison cgi* *-gd-* libtool-* gettext *libxml-devel libcurl-devel libevent libevent-devel net-snmp-devel lsof unzip

清除之前安装过的mysql;

rpm -e --nodeps mysql*

将mysql源下载到/usr/local/src;解压，编译安装

cd /usr/local/src

wget http://www.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.28.tar.gz/from/http://cdn.mysql.com/

tar -zxvf index

cd mysql-5.5.28

到这里发现没有cmake命令；安装cmake

cd ..

wget http://www.cmake.org/files/v2.8/cmake-2.8.4.tar.gz

tar -zxvf  cmake-2.8.4.tar.gz

cd cmake-2.8.4

./configure

make && make install

继续回来安装mysql，新建mysql用户和组

groupadd mysql

useradd -g mysql mysql

创建目录并设定权限

chmod +w /usr/local/mysql

chown -R mysql:mysql /usr/local/mysql

mkdir -p /var/mysql/data/

mkdir -p /var/mysql/log/

chown -R mysql:mysql /var/mysql/

mkdir -p /home/mysql/temp

chown -R mysql:mysql /home/mysql/temp

开始安装，用cmake编译mysql

cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_EXTRA_CHARSETS:STRING=utf8,gbk -DWITH_MYISAM_STORAGE_ENGINE=1 -DENABLED_LOCAL_INFILE=ON -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DENABLED_LOCAL_INFILE=1 -DMYSQL_USER=mysql-DMYSQL_DATADIR=/var/mysql/data

配置my.cnf

cd support-files/

cp my-huge.cnf /etc/my.cnf

vi /etc/my.cnf

//

[client]

password = root

port = 3306

socket = /usr/local/mysql/mysql.sock

[mysqld]

character-set-server = utf

user = mysql

port            = 3306

socket          = /usr/local/mysql/mysql.sock

basedir = /usr/local/mysql

datadir = /var/mysql/data

tmpdir = /home/mysql/temp

log-error = /var/mysql/log/error.log

pid-file = /var/mysql/mysql.pid

skip-external-locking

key_buffer_size = 256M

max_allowed_packet = 1M

table_open_cache = 256

sort_buffer_size = 1M

read_buffer_size = 1M

read_rnd_buffer_size = 4M

myisam_sort_buffer_size = 64M

thread_cache_size = 8

query_cache_size= 16M

# Try number of CPU's*2 for thread_concurrency

thread_concurrency = 8

///

初始化安装mysql数据库

cd /usr/local/mysql/scripts/

./mysql_install_db --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql --datadir=/var/mysql/data --user=mysql

将mysql启动服务文件添加到init.d下,并设置为开机启动

cp  /usr/local/src/mysql-5.5.28/support-files/mysql.server  /etc/init.d/mysqld

chmod +x /etc/init.d/mysqld

vi /etc/init.d/mysqld

查找并修改：

basedir=/usr/local/mysql

datadir=/var/mysql/data

chkconfig --add mysqld

chkconfig --level 2345 mysqld on

最后启动mysql服务，进入客户端设置密码

service mysqld start

cd /usr/local/mysql/bin/

mysql -uroot -p

update mysql.user set password=password("root") where user=root;

flush privileges;