CentOS 7 安装 mysql 有很多方法,网上看了一些列子,很少有一步成功的。其实官网已经给出了很简单的方式
1. 下载 rpm 源
因为是 CentOS7 我选择的是Red Hat Enterprise Linux 7 / Oracle Linux 7 (Architecture Independent), RPM Package
- 点击“download”
- 弹出的下载页面,右键 “ No thanks, just start my download.” 复制链接
比如我复制下来是 :https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
mkdir /home/mysql
cd /home/mysql
wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
2. 添加 yum mysql 的仓库
以下命名在 /home/mysql 目录下执行,或者加上目录路径执行也可
rpm -Uvh mysql57-community-release-el7-11.noarch.rpm
如果没有权限,用 sudo 执行
3. 自定义 mysql 安装的版本
3.1 查看当前可安装版本
yum repolist all | grep mysql
mysql-cluster-7.5-community/x86_64 MySQL Cluster 7.5 Community disabled
mysql-cluster-7.5-community-source MySQL Cluster 7.5 Community - disabled
mysql-cluster-7.6-community/x86_64 MySQL Cluster 7.6 Community disabled
mysql-cluster-7.6-community-source MySQL Cluster 7.6 Community - disabled
mysql-connectors-community/x86_64 MySQL Connectors Community enabled: 45
mysql-connectors-community-source MySQL Connectors Community - disabled
mysql-tools-community/x86_64 MySQL Tools Community enabled: 59
mysql-tools-community-source MySQL Tools Community - Sourc disabled
mysql-tools-preview/x86_64 MySQL Tools Preview disabled
mysql-tools-preview-source MySQL Tools Preview - Source disabled
mysql55-community/x86_64 MySQL 5.5 Community Server disabled
mysql55-community-source MySQL 5.5 Community Server - disabled
mysql56-community/x86_64 MySQL 5.6 Community Server disabled
mysql56-community-source MySQL 5.6 Community Server - disabled
mysql57-community/x86_64 MySQL 5.7 Community Server enabled: 247
mysql57-community-source MySQL 5.7 Community Server - disabled
mysql80-community/x86_64 MySQL 8.0 Community Server disabled
mysql80-community-source MySQL 8.0 Community Server - disabled
enabled,表示默认安装版本, 默认为5.7
3.2 修改安装版本
关闭5.7版本安装
yum-config-manager --disable mysql57-community
打开55版本安装
yum-config-manager --enable mysql55-community
yum-config-manager
无法执行,这个是因为系统默认没有安装这个命令,这个命令在yum-utils 包里,可以通过命令yum -y install yum-utils
安装就可以了
3.3 验证版本
yum repolist all | grep mysql
或者
yum repolist enabled | grep mysql
查看当前 enabled 的 mysql 版本,如果是你设置的版本。就可以安装了。
3.4 安装 mysql 5.5
yum install mysql-community-server
默认安装后的 mysql 是没有密码,请尽快设置。
set password for 'root'@'localhost' = PASSWORD('newpassword');
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