linux mysql 安装

下载mysql源代码，解压
# tar -zvxf mysql-5.0.45-linux-i686-glibc23.tar.gz
# mkdir -p /usr/local/mysql
# cp -r mysql-5.0.45 /usr/local/mysql
# cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysql //开机启动mysql
# cp /usr/local/mysql/support-files/my-medium.cnf /etc/my.cnf

添加mysql用户及用户组
# groupadd mysql
# useradd -g mysql mysql
修改mysql目录权限
# chown -R root /usr/local/mysql
# chgrp -R mysql /usr/local/mysql
# chown -R mysql /usr/local/mysql/data
生成mysql系统数据库
# /usr/local/mysql/scripts/mysql_install_db –basedir=/usr/local/mysql –datadir=/usr/local/mysql/data --user=mysql& //启动mysql服务

--datadir 数据库数据存放目录

--basedir 数据库根目录
# /usr/local/mysql/bin/mysqld_safe --user=mysql&
如出现 Starting mysqld daemon with databases from /usr/local/mysql/data 代表正常启动mysql服务了.
按Ctrl + C 跳出修改 mysql 的 root 密码

# /usr/local/mysql/bin/mysqladmin -u root -p password "123456"



服务启动不了

添加权限 chmod 777 /etc/rc.d/init.d/mysqld

Mysql:command not found

或者把MYSQLPATH/bin/mysql映射到/usr/local/bin目录下：
cd   /usr/local/bin
ln   -fs   /MYSQLPATH/bin/mysql   mysql
还有其它常用命令mysqladmin,   mysqldump等