=====Local Repository=====

====RHEL 7====
Easiest way is to copy media.repo from DVD and create a new direcotry **/media/dvd**

then edit it and add 

  enabled=1
  baseurl=file:///media/dvd/
  

====RHEL 6====

These are instruction on how to create a local repo on a machine with internet access and use it to update the resto fo your RH boxes. 

**This only works for 1 minor release, so if you have both 6.4 and 6.3 you will need 2 machines.**

====Creating Directory====

For this to work you need to have apache (**yum install httpd**) installed

First you need to create a folder where you will be importing your RPMs

  #mkdir /rpository site

These reposites can be pretty large (over 15 GBs) so if you use a separate disk you will need to create a link to it on **/var/www/html/repo** 
for example

  #ln -s /mnt/rhel-x86_64-server-6.4.z/getPackage /var/www/html/rhel64

====Reposync====

Ensure that you have **yum-utils and createrepo** installed

Before you can use **reposync** your machine needs to be subscribed to RedHat this will give you your **repoid**

to check this run:
  #yum repolist

Here is what it looks like:
  Loaded plugins: product-id, refresh-packagekit, rhnplugin, security,
              : subscription-manager
  This system is receiving updates from RHN Classic or RHN Satellite.
  repo id                   repo name                                       status
  epel                      Extra Packages for Enterprise Linux 6 - x86_64  10,899
  katello                   Katello Stable                                     329
  katello-candlepin         An open source entitlement management system.        9
  katello-foreman           Foreman Community Releases                          99
  katello-pulp              Pulp Community Releases                             42
  rhel-x86_64-server-6.4.z  RHEL EUS Server (v. 6.4.z for 64-bit x86_64)    11,244
  repolist: 22,622

On the left you get the repoid that you are subscribed to. You need to use this exactly.

Then you run:
  #reposync -p /mnt --repoid=rhel-86_64-server-6.4.z -l

this creates the following folders:

/mnt/rhel-x86_64-server-6.4.z/getPackage where all the RPMS will be downloaded. If you only want to get the newest RPMs then use the **-n** flag. 


This takes a while for the version I did it downloaded 19GB of data with a total of 11242 packages!

====Setting up the Repo====

Make sure that your HTTPD service is working.

Then check by opening a webpage to the **%% http://server-name/reponame %%** you should see all your packages.

Creating the repo:
  * move to the **/var/www/html/reponame** folder

  cd /var/html/www/html/rhel64/

  * createrepo . #note period at end

Thats it your repo should be ready for use

====Set up the Yum Clients====
You need to create a new repo file in /etc/yum.repos.d I called it rhel6-local.repo

Here is a copy of the one I used:

  [rhel6-local]
  name=RHEL 6u4 Local Repository
  #baseurl=file:///opt/yum/rhel6/
  baseurl=http://dubrhupprod.office.local/rhel64
  gpgcheck=1
  gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
  enabled=1



Thats it you should now be able to use the new repo to update your machines.

===Notes===
To just update the regular packages rather than the kernel use the --exclude option

in my case I ended up having to use the following:

  #yum --exclde=kernel*,irqbalance* update

added the irqbalance as there was a dependency error


You may need to run run 

  #yum clean all 
  
to ensure latest patches are done

====Yum Groups====

Setting up Yum groups needs the following to work
[[http://roottips.blogspot.co.uk/2013/02/error-no-group-data-available-for.html | enabling yum groups]]