Hi,

You did not specify which version of Satellite you use. That is an important piece of information.

There are many ways you can achieve it.

In simple terms, a few examples for Satellite 5.x:

a) "Push-method".

Create Shell script on Satellite server, say patch-servers.sh (this is just a core part of the script, much more can be added, including LVM snapshots and so on):

#!/bin/sh
PATH=/usr/bin:/bin:/sbin; export PATH

 yum clean all

DRYRUN=$(yum check-update | egrep -v "^$|Loaded plugins|This system|subscription-manager")

if [ $? -eq 0 ]
then
   MYMSG="$SUCCESSSAT"
   logger $MYMSG
fi

if [ ! "$DRYRUN" ]
then
   logger "INFO There are no RHEL-released updates currently"
   echo "INFO There are no RHEL-released updates currently"
   exit 0
fi

vgcfgbackup

yum -y update

reboot

exit 0

Then push the patches from the satellite to a group of RHEL systems:

for list in $(spacecmd system_list | egrep -i "mysrv.dom" | tr 'A-Z' '[a-z]')
do
   if [ -f "./patch-servers.sh" ]
  then
      spacecmd -y -- system_runscript $list -f patch-servers.sh
  fi
done

b) "Pull-method".

From each server, simply run:

yum -y update && reboot

You can even set up a cron job on each client machine too.

Regards,

Dusan Baljevic (amateur radio VK2COT)