CentOS下安装MySQL的过程记录 - 数据库编程

1。增加一个登录用户和群组：

# groupadd mysql

#useradd -g mysql mysql

2。解压mysql-5.0.18.tar.gz到/usr/local/mysql

#tar -zvxf mysql-5.0.18,tar.gz

3。进入mysql-5.0.18目录

#cd mysql-5.0.18

4。运行configure编译mysql源码

#./configure --prefix=/usr/local/mysql/

5。安装mysql到指定的目录

#make;make install

6。把/support-files/my-medium.cnf复制到/etc/下

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

7。在还没有安装mysql数据库之前，还必须为mysql建立授权表：

#/scripts/mysql_install_db --user=mysql&

注：也可以使用root，但是--user须改为-user

8。修改相应文件的权限(/usr/local/mysql/)

#chown -R root /usr/local/mysql

#chown -R mysql /usr/local/mysql

#chown -R mysql /usr/local/mysql/var

9。启动mysql：(/usr/local/mysql/)

# ./bin/mysqld_safe --user=mysql&

10。安装后mysql数据库的root帐户密码默认为空，可以这样修改：

# /usr/local/mysql/bin/mysqladmin -u root -password 'new-password'

11。把mysql命令加入到环境变量

# echo "export PATH=$PATH:/usr/local/mysql/bin">>/etc/profile

#source /etc/profile //使环境变量生效

#echo $PATH //输出环境变量

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin:/usr/local/mysql/bin

12。开机时启动mysql，把mysql.server放到开机启动的文件中/etc/init.d/mysql：(/usr/local/src/目录下)

#cp ./mysql-5.0.18/support-fiels/mysql.server /etc/init.d/mysql

#chkconfig --add mysql

#chkconfig mysql on

13。登录mysql：(必须把mysql命令加入到环境变量中)

# mysql -u root -p12345
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4 to server version: 5.0.18-log

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql>show databases;