There are many ways to install mysql on CentOS 7. I have seen some examples on the Internet, but few of them have succeeded in one step. In fact, the official website has given a very simple way
1. Download the rpm source
Official website download address
Because it is CentOS7, I choose Red Hat Enterprise Linux 7 / Oracle Linux 7 (Architecture Independent), RPM Package
- Click "download"
- On the pop-up download page, right click "No thanks, just start my download." Copy the link
For example, I copied it down: 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. Add yum mysql repository
The following naming is executed in the /home/mysql directory, or it can also be executed with a directory path.
rpm -Uvh mysql57-community-release-el7-11.noarch.rpm
If you don't have permission, execute with sudo
3. Customize the version of mysql installed
3.1 View the current installable version
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, indicates the default installation version, the default is 5.7
3.2 Modify the installation version
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-managerIt cannot be executed. This is because the system does not install this command by default. This command is in the yum-utils package and can beyum -y install yum-utilsinstalled through the command.
3.3 Verified version
yum repolist all | grep mysql
or
yum repolist enabled | grep mysql
Check the currently enabled mysql version, if it is the version you set. and it's ready to install.
3.4 Install mysql 5.5
yum install mysql-community-server
The mysql installed by default has no password, please set it as soon as possible.
set password for 'root'@'localhost' = PASSWORD('newpassword');
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