Build a YUM software warehouse based on file (local)

class=”markdown_views prism-atom-one-dark”> 1. Introduction to yum (1) Introduction to yum Yum can automatically download and install RPM packages from a designated server. It can automatically resolve dependencies and install all dependent software packages at once, eliminating the need to download and install them again and again. yum provides commands to find, install, and delete a certain, a group, or even all software packages, and the commands are concise and easy to remember. (2) yum software warehouse configuration file (/etc/yum.reops.d/rhel-source.repo) All information about yum is stored in a configuration file called yum.reops.d directory, usually located in the /etc/yum.reops.d directory. The rhel-source.repo file in this directory is The configuration file of the yum software repository; the following experiments are based on the modification of this configuration file; Among them: name=Red Hat Enterprise Linux —–>Specific yum source name baseurl —–>Mirror server address, only the specific address can be written; enabled=1 —–>Enable the warehouse, 1 means enabled, 0 means disabled; gpgcheck=1—->Use the public key to check the correctness of the rpm, 0 means disabled; gpgcheck—->If it is 1, the downloaded rpm will be verified by gpg. The verification key is gpgkey. Generally, your own yum source does not need to be checked. 2. Build…