我目前已安装php53并安装了Redhat 6.8版
[rh@StorServIN ~]$ php -v
PHP Warning: Module 'pgsql' already loaded in Unknown on line 0
PHP 5.3.3 (cli) (built: Dec 15 2015 04:52:58)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
但是当我想在Redhat 6.8中将php 5.3升级到php 7.2时，它的错误如下所示：
[rh@StorServIN etc]$ sudo yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
Loaded plugins: product-id, refresh-packagekit, search-disabled-repos, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Setting up Install Process
Repository epel-debuginfo is listed more than once in the configuration
Repository epel-source is listed more than once in the configuration
Repository mysql57-community is listed more than once in the configuration
Repository rhel-source is listed more than once in the configuration
Repository webtatic is listed more than once in the configuration
Repository webtatic-debuginfo is listed more than once in the configuration
Repository webtatic-source is listed more than once in the configuration
epel-release-latest-6.noarch.rpm | 14 kB 00:00
Examining /var/tmp/yum-root-Pdnwyw/epel-release-latest-6.noarch.rpm: epel-release-6-8.noarch
/var/tmp/yum-root-Pdnwyw/epel-release-latest-6.noarch.rpm: does not update installed package.
Error: Nothing to do
我真的是RHEL的新手，任何人都可以帮助我知道我该怎么做，谢谢。
-亨利·古纳万