How do I update the redhat kernel?



  • Also see: the man page for dnf

    $ sudo dnf update kernel
    Red Hat Update Infrastructure 3 Client Configur 2.3 kB/s | 2.6 kB     00:01
    Red Hat Enterprise Linux 8 for x86_64 - AppStre  38 MB/s |  14 MB     00:00
    Red Hat Enterprise Linux 8 for x86_64 - BaseOS   39 MB/s |  14 MB     00:00
    Dependencies resolved.
    ================================================================================
     Package        Arch   Version               Repository                    Size
    ================================================================================
    Installing:
     kernel         x86_64 4.18.0-147.5.1.el8_1  rhui-rhel-8-baseos-rhui-rpms 1.5 M
    Installing dependencies:
     linux-firmware noarch 20190516-94.git711d3297.el8
                                                 rhui-rhel-8-baseos-rhui-rpms  66 M
     kernel-core    x86_64 4.18.0-147.5.1.el8_1  rhui-rhel-8-baseos-rhui-rpms  25 M
     kernel-modules x86_64 4.18.0-147.5.1.el8_1  rhui-rhel-8-baseos-rhui-rpms  22 M
    
    Transaction Summary
    ================================================================================
    Install  4 Packages
    
    Total download size: 114 M
    Installed size: 406 M
    Is this ok [y/N]: y
    ...
    ...
    ...
    Installed:
      kernel-4.18.0-147.5.1.el8_1.x86_64
      linux-firmware-20190516-94.git711d3297.el8.noarch
      kernel-core-4.18.0-147.5.1.el8_1.x86_64
      kernel-modules-4.18.0-147.5.1.el8_1.x86_64
    

    This will check what you are running and what is installed.

    # dnf check-update kernel
    Last metadata expiration check: 0:17:05 ago on Mon 02 Mar 2020 02:22:34 PM UTC.
    Security: kernel-core-4.18.0-147.5.1.el8_1.x86_64 is an installed security update
    Security: kernel-core-4.18.0-80.4.2.el8_0.x86_64 is the currently running version
    

    On the next reboot you can run the latest kernel running.


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