centos编译安装mysql
groupadd mysql #添加mysql组
useradd -g mysql -s /sbin/nologin mysql #创建用户mysql并加入到mysql组，不允许mysql用户直接登录系统
mkdir -p /data/mysql #创建MySQL数据库存放目录
chown -R mysql:mysql /data/mysql #设置权限
tar -zxf mysql-5.6.30.tar.gz
cd mysql-5.6.30
cmake . -DCMAKE_INSTALL_PREFIX=/web/mysql -DMYSQL_DATADIR=/web/mysql/data -DWITH_INNODB_MEMCACHED=ON
make&&make install #(红色这里可以直接复制成shell脚本安装)
cd /web/mysql
初始化
./scripts/mysql_install_db --user=mysql #生成mysql系统数据库
加入自启动
cp ./support-files/mysql.server /etc/rc.d/init.d/mysqld #把Mysql加入系统启动
chkconfig mysqld on #加入开机启动
装完MySQL修改my.cnf
mv /etc/my.cnf /etc/my.cnf.bak #(mysql默认先读/etc/my.cnf，所以改下名字，不用这个文件)
使用mysql安装路径下的my.cnf
datadir=/data/mysql #（数据库路径）
添加环境变量 /etc/profile 末行 source /etc/profile生效
PATH=/web/mysql/bin:$PATH
export PATH
service mysqld start
此时输入MySQL可直接进入
不进入mysql
mysqladmin -u root -p password ’123’ 设置密码
进入MySQL
update user set password='' where user='root'; 修改密码 ’’为空是空密码。。 ’123’ 为密码是123
service mysqld restart #重启
备注： cmake 编译mysql 时报错
CMake Error at cmake/readline.cmake:85 (MESSAGE):
Curses library not found. Please install appropriate package,
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:128 (FIND_CURSES)
cmake/readline.cmake:202 (MYSQL_USE_BUNDLED_EDITLINE)
CMakeLists.txt:409 (MYSQL_CHECK_EDITLINE)
-- Configuring incomplete, errors occurred!
该报错原因是未安装ncurses-devel，安装
# rm -rf /usr/local/src/cmake-2.8.8/Tests/ComplexOneConfig/Cache/CMakeCache.txt
# rm -rf /usr/local/src/cmake-2.8.8/Tests/ComplexRelativePaths/Cache/CMakeCache.txt
# rm -rf /usr/local/src/mysql-5.6.25/CMakeCache.txt
