How to downgrade RPM Package using YUM?

1) Check Already Installed RPM and Required RPM

Following command will check which rpm version is installed.

rpm -qa | grep php

2) Install YUM Plugin

Issue following command to install yum-allowdowngrade plugin

1	yum -y install yum-allowdowngrade

3) Downgrade RPM Install

First you should be sure what rpm’s you are going to downgrade. For my list I will using already install PHP rpm package name with downgrade argument, which let yum to automatically use the lower version to install and remove the current version of PHP.

1	yum downgrade php-dba php-soap php-ldap php-mysql  php-mcrypt php-common php-cli php-gd php-odbc php-xmlrpc php-snmp   php-bcmath php-imap- php-devel php-pdo php php-pgsql php-pgsql  php-mbstring php-xml

Which was than verified using following commands

1	rpm -qa | grep php

shows install php rpm with version, additionally you can use php command with version option

1

php -v

If you have any question please comment.