在CentOS 7上安裝MySQL 5.1需要遵循以下步驟：

1. 確認(rèn)CentOS 7上MySQL的依賴庫(kù)

$ sudo yum install -y perl

2. 下載MySQL源代碼

$ wget https://dev.mysql.com/get/Downloads/MySQL-5.1/mysql-5.1.73.tar.gz

3. 解壓源代碼

$ tar zxvf mysql-5.1.73.tar.gz

4. 安裝編譯工具

$ sudo yum install -y gcc-c++ make automake autoconf libtool openssl-devel

5. 進(jìn)入MySQL源代碼目錄

$ cd mysql-5.1.73

6. 配置MySQL安裝選項(xiàng)

$ sudo ./configure --prefix=/usr/local/mysql \
--with-charset=utf8 \
--with-extra-charsets=none \
--with-unix-socket-path=/var/lib/mysql/mysql.sock \
--with-plugins=innobase \
--with-mysqld-ldflags=-all-static \
--without-docs \
--without-man \
--with-client-ldflags=-static

7. 編譯MySQL源代碼

$ sudo make

8. 安裝MySQL

$ sudo make install

9. 初始化MySQL

$ sudo /usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

10.啟動(dòng)MySQL

$ sudo /usr/local/mysql/bin/mysqld_safe --user=mysql &

11.設(shè)置MySQL的root賬戶密碼

$ sudo /usr/local/mysql/bin/mysqladmin -u root password 'yourpassword'

12.測(cè)試MySQL是否安裝成功

$ sudo /usr/local/mysql/bin/mysql -uroot -p

以上是在CentOS 7上安裝MySQL 5.1的詳細(xì)步驟，希望對(duì)大家有所幫助。