CentOS epel source usage tutorial.

The centos6 and 64 operating systems installed on the dell r410 use 163 of the source, and I have always used 163 of the source, which is faster. However, I found that there was no libmcrypt-devel package in this source. These two packages were used when I installed php extension mcrypt, So I manually installed the libmcrypt package, but it seems to me that the packages in the 163 source are incomplete. Later, a friend told me to use epel. After using epel, it felt great.

1. What is epel?

If you want to get RHEL's high-quality, high-performance, high-reliability, and easy-to-use (the key is free) Software Package update function, the EPEL (Extra Packages for Enterprise Linux) launched by the Fedora Project) this is exactly for you. EPEL (http://fedoraproject.org/wiki/EPEL) is a program built by the Fedora community to provide high-quality software packages for RHEL and derivative releases such as CentOS and Scientific Linux.

Ii. usage experience

1. You do not need to change the original yum source. A new repo will be generated after installation.

2. There will be many source addresses for epel. If one address is not available, it will go to another address.

Pipeline [Errno 14] pycurl error 6 -""
Trying other mirror.
Pipeline [Errno 14] pycurl error 6 -""
Trying other mirror.
Pipeline [Errno 14] pycurl error 6-"" kjs

......

3. If the downloaded package is incomplete during update, the package will not be installed. In this way, the dependency can be retained

3. Install epel. Choose 5 If centos6 is 6 or 5.

32-bit System Selection:

Rpm-ivh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

Rpm-ivhhttp: // dl.fedoraproject.org/pub/epel/5/ I #/epel-release-5-4.noarch.rpm

64-bit System Selection:

Rpm-ivhhttp: // dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

Rpm-ivhhttp: // dl.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm

Import key:

Rpm -- import/etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

Rpm -- import/etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-5

If you use newer software, you just need to use the epel-test.repo file.

Don't forget to install yum-priorities

[Root @ localhost yum. repos. d] # ls | grep epel
Epel. repo
Epel-testing.repo