Official Red Hat Linux Administrators Guide

There are several ways to determine if there is an updated kernel available for your system.

• Go to http://www.redhat.com/apps/support/errata/, choose the version of Red Hat Linux you are using, and view the errata for it. Kernel errata are usually under the Security Advisories section. From the list of errata, click the kernel errata to view the detailed errata report for it. In the errata report, there is a list of required RPM packages and a link to download them from the Red Hat FTP site. You can also download them from a Red Hat FTP mirror site. A list of mirror sites is available at http://www.redhat.com/download/mirror.html.

• Use Red Hat Network to download the kernel RPM packages and then manually upgrade to the latest kernel. Or, if you have elected to let the Red Hat Update Agent upgrade packages for you, Red Hat Network can upload the latest kernel, upgrade the kernel on your system, create an initial RAM disk if needed, and configure the boot loader to boot the new kernel. All you have to do is reboot into the new kernel. For more information, refer to the Red Hat Network User Reference Guide available at http://www.redhat.com/docs/manuals/RHNetwork/.

If there is an updated kernel for the version of Red Hat Linux you are running, obtain the appropriate packages using one of these methods. If you used Red Hat Network to upgrade your kernel automatically, you are finished — just reboot your system to use the new kernel. If you downloaded only the RPM packages from the Red Hat Linux errata page or from Red Hat Network, proceed to the next section.