{RHEL} users receive errata for each release of official Red Hat RPMs. SUSE Linux Enterprise Server users receive errata for each release of official SUSE RPMs. There are three types of advisories (in order of importance):
- Security Advisory
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Describes fixed security issues found in the package. The security impact of the issue can be Low, Moderate, Important, or Critical.
- Bug Fix Advisory
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Describes bug fixes for the package.
- Product Enhancement Advisory
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Describes enhancements and new features added to the package.
For {RHEL}, {Project} imports errata information when synchronizing repositories with Red Hat’s Content Delivery Network (CDN). For SUSE Linux Enterprise Server, {Project} imports errata information when synchronizing repositories with SUSE Customer Center. For Alma Linux and Rocky Linux, {Project} imports errata information when synchronizing repositories with upstream repositories. {ProjectName} also provides tools to inspect and filter errata, allowing for precise update management. This way, you can select relevant updates and propagate them through Content Views to selected content hosts.
Errata are labeled according to the most important advisory type they contain. Therefore, errata labeled as Product Enhancement Advisory can contain only enhancement updates, while Bug Fix Advisory errata can contain both bug fixes and enhancements, and Security Advisory can contain all three types.
In {ProjectName}, there are two keywords that describe an erratum’s relationship to the available content hosts:
- Applicable
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An erratum that applies to one or more content hosts, which means it updates packages present on the content host. Although these errata apply to content hosts, until their state changes to Installable, the errata are not ready to be installed. Installable errata are automatically applicable.
- Installable
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An erratum that applies to one or more content hosts and is available to install on the content host. Installable errata are available to a content host from lifecycle environment and the associated Content View, but are not yet installed.
This chapter shows how to manage errata and apply them to either a single host or multiple hosts.