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I have a server that no longer lists the current security relevant updates when using:

yum list-security or yum --security check-updates

At one point yum tried to update a package and couldn't figure out how to resolve the dependencies. Since that time, new security updates aren't showing (I know there are some because I run other server with similar software packages). Yum shows that the only security relevant package is the one that failed. What steps can I take to get yum working again?

yum update still works on any package I manually tell it to update.

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Have you run yum clean all and run yum update? – Chida Aug 13 '12 at 14:24
@Chida - I'll try that. It sounds like a good idea – JMC Aug 13 '12 at 14:29
@Chida - Thanks, that did it. If you want to post as an answer I'll accept it. – JMC Aug 13 '12 at 14:31
up vote 4 down vote accepted

The following should do the trick,

    # yum clean all
    # yum update
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