Yum Rollbacks

Very occasionally installing a package or updates with yum can have unexpected results.  Fortunately yum provides the ability to roll back anything it installs.  Here is an example of what these commands look like: # yum history Loaded plugins: package_upload, product-id, search-disabled-repos, security, subscription-manager ID | Login user | Date and time | Action(s) | […]

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Working with Repositories

Pulling packages from multiple sources can lead to problems.  If you are running rhel and have epel enabled an update could inadvertently pull down a newer version from the wrong repository.  This doesn’t always cause a problem, but it can.  If you need to tfind all the epel packages on your system, here is how […]

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To reboot or not to reboot?

You have patches to apply, we all know that if there are kernel patches that you need to (or at least should) restart/reboot the server.  But what about other packages?  There are a few non-kernel patches which can cause havoc if you spply them and do not reboot the server.  The biggest package that most […]

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Yum that was useful!

Pardon the humor.  Just a collection of useful yum commands that are useful to have around but I don’t always remember off the top of my head.  I’ll be adding to this post over time. How to list the files installed by a yum package You will need ‘repoquery‘ which is part of ‘yum-utils‘.  If […]

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