Channels; Software Channels - Red Hat NETWORK SATELLITE 5.1.0 Reference Manual

Chapter 6. Red Hat Network Website
• Erratum Advisory — The way Red Hat Security Response Team codifies Advisories, such
as:
RHBA-2007:0530
Searches can be by done year (such as 2007), by type of Advisory (RHBA for Bug fixes,
RHEA for Enhancements, and RHSA for Security advisories), or full Advisory name, such as
the example above.
• Package Name — For users concerned with particular packages, searching by package
name (such as
kernel
advisory. For example, searching for kernel-related bugs return result where the all packages
with the term "kernel" appear grouped by the advisory for which the bug is related.

6. Channels

If you click the Channels tab on the top navigation bar, the Channels category and links
appear. The pages in the Channels category enable you to view and manage the channels and
packages associated with your systems. In addition, you can obtain ISO images here.

6.1. Software Channels

The Software Channels page is the first to appear in the Channels category. A software
channel is a list of Red Hat Enterprise Linux packages grouped by use. Channels are used to
choose packages to be installed on a system.
There are two types of software channels: base channels and child channels.
6.1.1. Base Channels
A base channel consists of a list of packages based on a specific architecture and Red Hat
Enterprise Linux release. For example, all of the packages in Red Hat Enterprise Linux 3 for the
x86 architecture make up a base channel. The list of packages in Red Hat Enterprise Linux 3
for the Itanium architecture make up a different base channel.
A system must be subscribed to one base channel only. This base channel is assigned
automatically during registration based upon the Red Hat Enterprise Linux release and system
architecture selected. In the case of public free channels, the action will succeed. In the case of
paid base channels, this action will fail if an associated entitlement does not exist.
6.1.1.1. Extended Update Support (EUS)
In addition to base channels for major versions of Red Hat Enterprise Linux, there are channels
for update versions of Red Hat Enterprise Linux, which are also separated by architecture and
which can have child channels. These Extended Update Support (EUS) channels are for
administrators who want to stay with one major or update version of Red Hat Enterprise Linux
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