Rebuilding an RPM-based OS White it’s Running

Cool title right? Recently at Beyond Hosting we had a server get hard powered off while it was doing a raid array rebuild and for whatever reason it corrupted a ton of data, surprising right? Thank a singlehop DC ‘tech?’..

Okay well here’s how you do it.
First create a list of all the files that are SCREWED. Then reinstall them with yum, hopefully your yum/rpm still works..

rpm -V -a | grep -v local | awk '{print $2}' | \
xargs rpm -q --whatprovides | sort | uniq | grep -v "no package" | \
xargs yum -y reinstall

At this point restart and hopefully everything that isn’t a configuration or user generated file is fixed.

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