Users Guide

Dell PowerConnect W AirWave 7.2 | User Guide Package Management for AWMS | 255
Appendix A
Package Management for AWMS
Yum for AWMS
This appendix describes the Yum packaging management system. Dell PowerConnect W recommends running
Yum to ensure your packages are up to date, and so that your AWMS is as secure as possible if you are running
RHEL 5 or CentOS 5.
Yum is an automated package management system that verifies AWMS is running the most recently released
RPMs and upgrades any out-of-date packages. Yum accesses the Internet, and downloads and installs new
versions of any installed RPMs. It is important to keep the AWMS RPMs current to close any known security
holes in the OS as quickly as possible.
To run Yum on a CentOS 5 machine, follow the instructions below:
1. Before running Yum for the first time, you need to install the GPG key. The GPG key is used to validate the
authenticity of all packages downloaded by Yum. To install the GPG key, type
rpm --import /etc/pki/
rpm-gpg/RPM-GPG-KEY-CentOS-5. If the key was not manually installed before Yum is run for the first
time, you will be prompted to install and accept a new key.
2. To run Yum manually, log in to the AWMS console and type
yum update and press Enter. If the packages
seem to be downloading slowly, press Ctrl+C to connect to a new mirror.
3. To configure Yum to run nightly, type
yum install yum-cron and press Enter. Then type service yum
start
and press Enter. Note that yum-cron will default to off if the machine is restarted.
4. To configure yum-cron to start at system startup, type
chkconfig yum-cron on and press Enter.
5. In some instances, running Yum may cause a problem with AWMS. If that happens, a good first step is to use
SSH to go into the AWMS server as root, and issue the following command:
# root; make
If that does not resolve the issue, please contact Dell support.
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