CentOS Update Yum Packet source

When using CentOS, you will often encounter the use of Yum to install certain system-dependent packages, especially third-party software libraries (such as the OpenStack Software Library) that cannot be found. As a result, it is necessary to update and expand the CentOS source to allow for more packects to be installed in Yum mode. A project in the Fedora Community Epel (Extra Packages for Enterprise Linux), which provides a number of source addresses.

• Install the yum-plugin-priorities package to enable assignment of relative priorities within repositories:

  # yum Install Yum-plugin-priorities

• Install the epel-release package to enable the Epel repository:

  # yum Install http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-2.noarch.rpm

　　

CentOS Update Yum Packet source