ROLL Out RPM packages in Redhat

Many times we require to rollback package installation or patch updates on RedHat linux machines.

We can achieve this by following below steps:

1.    To configure yum to repackage RPMs, add the line tsflags=repackage to /etc/yum.conf.

2.    To configure command-line rpm to do the same thing, add the line %_repackage_all_erasures 1 to /etc/rpm/macros.up2date

3.    Install, erase, and update packages to your heart’s content, using yum

4.    If/when you want to rollback to a previous state, perform an rpm update with the –rollback option followed by a date/time specifier (the rollback is time-based because packages affect each other’s configuration — if you removed package a, then b, then c, and then rolled back only package a, the configuration could be broken).

Some examples:

• rpm -Uhv –rollback ’9:00 am’
• rpm -Uhv –rollback ’4 hours ago’
• rpm -Uhv –rollback ’5 mins ago’
• rpm -Uhv –rollback ‘december 25′

Repackaged files are stored in /var/spool/repackage.

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