= OS Errata Management and Deployment =
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Quattor can greatly help with OS errata deployment. QWG templates has a few specific features and tools to help managing them.

== Downloading OS Errata ==

Errata should normally be downloaded from the official public servers for the distribution you use. With Scientitific Linux it is possible to use `rsync` to syncrhonize a local directory with the official repository. The rsync official URL prefix is:
 * For SL4:
{{{
rsync://rsync.scientificlinux.org/scientific/VERSION/ARCH/errata/SL/RPMS/
}}}
 * For SL5:
{{{
rsync://rsync.scientificlinux.org/scientific/VERSION/ARCH/updates/security
}}}

GRIF tends to have a rather up-to-date mirror of these repositories that you can access with http at:
{{{
http://quattorsrv.lal.in2p3.fr/packages/os/VERSION/errata
}}}

These are just suggestions, there are many way to synchronize with a reference repository, including YUM and a script provided by SCDB, [source:SCDB/trunk/utils/misc/sync-os-errata utils/misc/sync-os-errata], to do it in a cron job using `rsync` or `wget`.


== Generating Templates for OS Errata ==


== Deploying OS Errata ==