Chapter 2. Red Hat Update Agent 27Argument Description--tmpdir=directory Temporarily override the configured package directory. Thedefault location is /var/spool/up2date. This option is usefulif you do not have enough space in the configured location.--undo Reverse the last package set update.-u, --update Update system with all relevant packages.--uuid=uuid Pass in a Unique User ID generated by the Alert Notificationtool.--verbose Show additional output while updating.--whatprovides=dependenciesShow the packages that resolve the comma-separated list ofdependencies.Table 2-2. Update Agent Command Line Arguments2.3.5.1. Installing the Red Hat GPG keyThe first time you run the graphical version of the Red Hat Update Agent, it prompts you to in-stall the Red Hat GPG key. This key is required to authenticate the packages downloaded from RedHat Network. If you run the command line version the first time you start Red Hat Update Agent,you need to install the Red Hat GPG key manually. If you do not have it installed, you will see thefollowing message:Your GPG keyring does not contain the Red Hat, Inc. public key.Without it, you will be unable to verify that packages Update Agent downloadsare securely signed by Red Hat.Your Update Agent options specify that you want to use GPG.To install the key, run the following as root:/usr/bin/gpg --import /usr/share/rhn/RPM-GPG-KEYTo install the Red Hat GPG key, use the command displayed: /usr/bin/gpg --import/usr/share/rhn/RPM-GPG-KEY, or use the following steps:NoteGPG keys must be installed for each user. To install the key to use with Red Hat Network, import thekey while logged in as root.1. Cut and paste the following into a file and save it as redhat2.asc or download it fromhttps://www.redhat.com/solutions/security/news/publickey/#key.Type bits/keyID Date User IDpub 1024D/DB42A60E 1999-09-23 Red Hat Software, Inc. (security@redhat.com)sub 2048g/961630A2 1999-09-23-----BEGIN PGP PUBLIC KEY BLOCK-----Version: GnuPG v1.0.0 (GNU/Linux)Comment: For info see http://www.gnupg.org