How to Enable Software Collections (SCL) yum repository on CentOS 7

The Software Collection is an additional package repository that allow users to easily and safely install most recent versions of applications and configure online environments without compromising the performance of the existing system. It is reliable, community edition and provides useful software packages that are not included in the official CentOS 7 default repositories.

This article describes enabling Software Collection (SCL) on CentOS 7. It can be installed by below two methods.

Method 1. The package to enable Software Collection SCL is available in CentOS 7 repository and it can be installed by yum command.

Step 1. Package installation: Follow the below command to Install and Enable SCL repository using yum:

[root@linuxcloudy ~]# yum install centos-release-scl Loaded plugins: fastestmirror ……………………. Installed:   centos-release-scl.noarch 0:2-3.el7.centos Dependency Installed:   centos-release-scl-rh.noarch 0:2-3.el7.centos Complete! [root@linuxcloudy ~]#

Step 2. Verification: Verify the installation using the below command:

[root@linuxcloudy ~]# yum repolist Loaded plugins: fastestmirror …………………………… repo id                                                                           repo name                                                                       status base/7/x86_64                                                                     CentOS-7 - Base                                                                 10,097 centos-sclo-rh/x86_64                                                             CentOS-7 - SCLo rh                                                               8,548 centos-sclo-sclo/x86_64                                                           CentOS-7 - SCLo sclo                                                               804 extras/7/x86_64                                                                   CentOS-7 - Extras                                                                  304 updates/7/x86_64                                                                  CentOS-7 - Updates                                                                 319 repolist: 20,072 [root@linuxcloudy ~]#

Now the SCL repository is enabled using yum command.

Method 2. Download RPM package and its dependency from CentOS official site and install using rpm command. The RPM package configures SCL repository.

Step 1. Package downloading: Run the following command to download SCL rpm package and its dependency from CentOS official site:

[root@linuxcloudy ~]# wget http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-scl-2-3.el7.centos.noarch.rpm --2019-09-14 15:48:01--  http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-scl-2-3.el7.centos.noarch.rpm Resolving mirror.centos.org (mirror.centos.org)... 2401:78c0::e00e, 160.116.15.18 Connecting to mirror.centos.org (mirror.centos.org)|2401:78c0::e00e|:80... connected. HTTP request sent, awaiting response... 200 OK …………………….. 2019-09-14 15:48:02 (38.5 MB/s) - ‘centos-release-scl-2-3.el7.centos.noarch.rpm’ saved [12308/12308] [root@linuxcloudy ~]# wget http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-scl-rh-2-3.el7.centos.noarch.rpm --2019-09-14 15:48:14--  http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-scl-rh-2-3.el7.centos.noarch.rpm Resolving mirror.centos.org (mirror.centos.org)... 2401:78c0::e00e, 160.116.15.18 Connecting to mirror.centos.org (mirror.centos.org)|2401:78c0::e00e|:80... connected. HTTP request sent, awaiting response... 200 OK ……………………. 2019-09-14 15:48:14 (2.64 MB/s) - ‘centos-release-scl-rh-2-3.el7.centos.noarch.rpm’ saved [12324/12324] [root@linuxcloudy ~]#

Step 2. Package installation: Install the downloaded packages one by one using rpm command:

[root@linuxcloudy ~]# rpm -ivh centos-release-scl-rh-2-3.el7.centos.noarch.rpm Preparing...                          ################################# [100%] Updating / installing...    1:centos-release-scl-rh-2-3.el7.cen################################# [100%] [root@linuxcloudy ~]# [root@linuxcloudy ~]# rpm -ivh centos-release-scl-2-3.el7.centos.noarch.rpm Preparing...                          ################################# [100%] Updating / installing...    1:centos-release-scl-2-3.el7.centos################################# [100%] [root@linuxcloudy ~]#

Step 3. Verification: Run the following command to verify the installation of SCL repository:

[root@linuxcloudy ~]# yum repolist Loaded plugins: fastestmirror ………………. repo id                                                                           repo name                                                                       status base/7/x86_64                                                                     CentOS-7 - Base                                                                 10,097 centos-sclo-rh/x86_64                                                             CentOS-7 - SCLo rh                                                               8,548 centos-sclo-sclo/x86_64                                                           CentOS-7 - SCLo sclo                                                               804 extras/7/x86_64                                                                   CentOS-7 - Extras                                                                  304 updates/7/x86_64                                                                  CentOS-7 - Updates                                                                 319 repolist: 20,072 [root@linuxcloudy ~]#

Done!!! Now the Software Collections (SCL) repository is configured.