RHEL: Create a local RPM repository

# Tested on RHEL/CentOS 6 & 7

# Mount the installation disk and copy packages from <cdrom>/Packages to a local directory.
# I'll use /depot as local repository.


# Once done, first of all, you have to install createrepo package:

cd /depot

ll *createrepo*
   -r--r--r--. 1 root root 93764 Jan 17 01:45 createrepo-0.9.9-23.el7.noarch.rpm

rpm -ihv createrepo-0.9.9-23.el7.noarch.rpm
   warning: createrepo-0.9.9-23.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
   error: Failed dependencies:
           deltarpm is needed by createrepo-0.9.9-23.el7.noarch
           libxml2-python is needed by createrepo-0.9.9-23.el7.noarch
           python-deltarpm is needed by createrepo-0.9.9-23.el7.noarch

rpm -ihv createrepo-0.9.9-23.el7.noarch.rpm deltarpm-3.6-3.el7.x86_64.rpm \
         libxml2-python-2.9.1-5.el7_1.2.x86_64.rpm python-deltarpm-3.6-3.el7.x86_64.rpm
   warning: createrepo-0.9.9-23.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
   Preparing...                          ################################# [100%]
   Updating / installing...
      1:deltarpm-3.6-3.el7               ################################# [ 25%]
      2:python-deltarpm-3.6-3.el7        ################################# [ 50%]
      3:libxml2-python-2.9.1-5.el7_1.2   ################################# [ 75%]
      4:createrepo-0.9.9-23.el7          ################################# [100%]



# Next, while being under /depot, run following command in order to create the repository:

createrepo .
   Spawning worker 0 with 3705 pkgs
   Workers Finished
   Saving Primary metadata
   Saving file lists metadata
   Saving other metadata
   Generating sqlite DBs
   Sqlite DBs complete



# Now that you have a repo setup, "yum" needs to know about it. Create a file named
# <my_local_depot>.repo under /etc/yum.repos.d directory with following content:

vi /etc/yum.repos.d/my_local_depot
   [my_local_depot]
   name=my_local_depot
   baseurl=file:///depot/
   enabled=1
   gpgcheck=1
   gpgkey=file:///etc/pki/rpm-gpg/<RPM-GPG-KEY-CentOS-7>

# * Note: If GPG key is not defined in yum.repos.d file, you'll have to import a valid key,
#   usually under /etc/pki/rpm-gpg, before trying to install any package, otherwise you'll
#   have a message similar to this one:
#
# You have enabled checking of packages via GPG keys. This is a good thing.
# However, you do not have any GPG public keys installed. You need to download
# the keys for packages you wish to install and install them.
# You can do that by running the command:
# rpm --import public.gpg.key
#
# Alternatively you can specify the url to the key you would like to use
# for a repository in the 'gpgkey' option in a repository section and yum
# will install it for you.
#
# For more information contact your distribution or package provider.
# The Project GPG keys are included in the centos-release package, and are typically
# found in /etc/pki/rpm-gpg



# To import a GPG key do this:

find / -name "*RPM-GPG*"
   /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Testing-7
   /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
   /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-Debug-7

rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7



# To test, run a "yum" command. It should be pulling information about packages from the
# local repository (for practical reasons, I've disabled all other default repositories
# by renaming /etc/yum.repos.d/*.repo files to /etc/yum.repos.d/*.repo.orig):

cd /etc/yum.repos.d/

ll
   total 32
   -rw-r--r--. 1 root root 1664 Dec  9 10:59 CentOS-Base.repo.orig
   -rw-r--r--. 1 root root 1309 Dec  9 10:59 CentOS-CR.repo.orig
   -rw-r--r--. 1 root root  649 Dec  9 10:59 CentOS-Debuginfo.repo.orig
   -rw-r--r--. 1 root root  290 Dec  9 10:59 CentOS-fasttrack.repo.orig
   -rw-r--r--. 1 root root  630 Dec  9 10:59 CentOS-Media.repo.orig
   -rw-r--r--. 1 root root 1331 Dec  9 10:59 CentOS-Sources.repo.orig
   -rw-r--r--. 1 root root 1952 Dec  9 10:59 CentOS-Vault.repo.orig
   -rw-r--r--. 1 root root   81 Jan 17 02:10 my_local_depot.repo


yum list mlocate
   Loaded plugins: fastestmirror
   my_local_depot                                                                            | 2.9 kB  00:00:00
   my_local_depot/primary_db                                                                 | 2.8 MB  00:00:00
   Loading mirror speeds from cached hostfile
   Available Packages
   mlocate.x86_64                                      0.26-5.el7                                     my_local_depot      <---



# Now, packages are found on (and can be installed from) local repository

yum install mlocate

   Loaded plugins: fastestmirror
   Loading mirror speeds from cached hostfile
   Resolving Dependencies
   --> Running transaction check
   ---> Package mlocate.x86_64 0:0.26-5.el7 will be installed
   --> Finished Dependency Resolution

   Dependencies Resolved

   ==================================================================================
    Package               Arch          Version          Repository             Size
   ==================================================================================
   Installing:
    mlocate               x86_64        0.26-5.el7       my_local_depot        112 k   <---

   Transaction Summary
   ==================================================================================
   Install  1 Package

   Total download size: 112 k
   Installed size: 378 k
   Is this ok [y/d/N]: y
   Downloading packages:
   Running transaction check
   Running transaction test
   Transaction test succeeded
   Running transaction
   Warning: RPMDB altered outside of yum.
     Installing : mlocate-0.26-5.el7.x86_64                                                                                                                                                        1/1
     Verifying  : mlocate-0.26-5.el7.x86_64                                                                                                                                                        1/1

   Installed:
     mlocate.x86_64 0:0.26-5.el7

   Complete!

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