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Chapter 2.
7
The rhn_register Client
Red Hat Enterprise Linux 5 features an application called
rhn_register
. This application works with
the
yum
-based RHN Hosted and RHN Satellite client called
Package Updater
(or
pup
)that replaces
up2date
. For more information about
pup
, refer to
Chapter 3, Package Updater
.
The
rhn_register
application normally runs as part of the
firstboot
configuration process
just after installation. The first time a newly-installed Red Hat Enterprise Linux 5 system is booted,
firstboot
uses
rhn_register
to register your system with RHN.
2.1. Using
rhn_register
If you should ever need to re-register your system at a later time (or you chose not to register during
firstboot
), you can use
rhn_register
to do so. You can execute the command
rhn_register
from the command line as root. If you have never registered, you can start
rhn_register
by
selecting
Applications
(the main menu on the panel) � System Tools � Package Updater. (You will
be asked to enter the root password.) The Package Updater, when run on a system that has not yet
been registered, triggers
rhn_register
if there is no
/etc/sysconfig/rhn/systemid
file on the
system.
If you have already registered before and
/etc/sysconfig/rhn/systemid
exists
on the system,
rhn_register
first asks if you are sure that you would like to register
again. Doing so may create a duplicate system profile in RHN Satellite. Consider using
rhnreg_ks
and activation keys to re-register a system without creating a duplicate
entry. Refer to
Section 7.4.2.9.1.4, “System Details � Details � Reactivation —
”
for more information.
Figure 2.1. Verifying Registration
If you are certain you would like to re-register this way, select the
Yes, Continue
button.