Yum Check Available Package Updates

  • Red Hat docs say:

    To see which installed packages on your system have updates available, use the following command:

    yum check-update

    What command must I run to view all available versions for a package installed on my system?

    Example: yum check-update tells me java6 update #43 is available, but what if I want update #40?

  • slm

    slm Correct answer

    8 years ago

    This command won't focus specifically on one package, but by using a regex to do the matching you can still see what's available:

    $ yum list available java\*
    java-1.4.2-gcj-compat.i386                                                                                               installed
    java-1.6.0-openjdk.i386                                                      1:                                            installed
    Available Packages
    java-1.4.2-gcj-compat-devel.i386                                                                                         base     
    java-1.4.2-gcj-compat-javadoc.i386                                                                                       base     
    java-1.4.2-gcj-compat-src.i386                                                                                           base     
    java-1.6.0-openjdk.i386                                                      1:                                           updates  
    java-1.6.0-openjdk-demo.i386                                                 1:

    You can make it "smarter" by filtering the output using grep.

    Then I can run `yum update ` provided the package, to which I'm trying to upgrade, is, in fact, a higher version of my currently installed package?

    That would be correct. You can update to the next version from what you currently have installed.

    Note that the official repositories _very_ rarely carry more than one version of a package, old packages are obsoleted for a reason.

    You want to use --show-duplicates to see all the versions, but as vonbrand said if you are using CentOS/Fedora you only get the latest anyway (If you pay for actual RHEL, you'll get a lot of choice and may want to look at the upgrade-to command as well).

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Content dated before 6/26/2020 9:53 AM