Mysql5.1二进制免编译安装

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cd /usr/local/src/
wget http://mirrors.sohu.com/mysql/MySQL-5.1/mysql-5.1.73-linux-x86_64-glibc23.tar.gz
yum install -y wget
wget http://mirrors.sohu.com/mysql/MySQL-5.1/mysql-5.1.73-linux-x86_64-glibc23.tar.gz
tar zxvf /usr/local/src/mysql-5.1.73-linux-x86_64-glibc23.tar.gz
mv mysql-5.1.73-linux-x86_64-glibc23 /usr/local/mysql
useradd -s /sbin/nologin -M mysql
cd /usr/local/mysql/
mkdir -p /data/mysql
chown -R mysql:mysql /data/mysql
./scripts/mysql_install_db --user=mysql --datadir=/data/mysql
出现两个ok说明初始化成功，也可以echo $?确认一下。
cp support-files/my-large.cnf /etc/my.cnf
cp support-files/mysql.server /etc/init.d/mysqld
chmod 755 /etc/init.d/mysqld
vi /etc/init.d/mysqld	#datadir=/data/mysql basedir=/usr/local/mysql
basedir=/usr/local/mysql
datadir=/data/mysql
chkconfig --add mysqld
chkconfig mysqld on
service mysqld start

设置密码：mysqladmin -uroot password 'yourpass'
更改密码：mysqladmin -uroot password 'newpass'