Redhat Linux YUM repository is useful for installing packages , updating the packages and upgrade the operating system with automatic dependency selection method. In larger environment , we need to setup the repository via HTTP to make the YUM repository to be available over network. At the same time , you might have different RHEL versions might be running on the environment. So how to maintain a single YUM repository across the environment ? This can be done by setting up yum repositories over http and merging RHEL ISO repositories.
Prerequisites:
- Multiple version of RHEL DVD. (I have selected RHEL 7.0 & 7.5)
1. Login to your YUM repository server. In this server RHEL7 repository is already configured.
[root@uaans ~]# yum repolist Loaded plugins: langpacks, product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. repo id repo name status !uaans-repo UAANS-GLOBAL 4,305 repolist: 4,305 [root@uaans ~]#
2. Install required packages for repo update.
[root@uaans repo]# yum install createrepo yum-utils Loaded plugins: langpacks, product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. Package yum-utils-1.1.31-24.el7.noarch already installed and latest version Resolving Dependencies --> Running transaction check ---> Package createrepo.noarch 0:0.9.9-23.el7 will be installed --> Processing Dependency: deltarpm for package: createrepo-0.9.9-23.el7.noarch --> Processing Dependency: python-deltarpm for package: createrepo-0.9.9-23.el7.noarch --> Running transaction check ---> Package deltarpm.x86_64 0:3.6-3.el7 will be installed ---> Package python-deltarpm.x86_64 0:3.6-3.el7 will be installed --> Finished Dependency Resolution
3. Mount RHEL 7.5 DVD under /mnt/.
[root@uaans ~]# mount /dev/sr1 /mnt mount: /dev/sr1 is write-protected, mounting read-only [root@uaans ~]# cd /mnt [root@uaans mnt]# ls -lrt total 952 -r--r--r--. 1 root root 18092 Mar 6 2012 GPL -r--r--r--. 1 root root 8266 Apr 4 2014 EULA -r--r--r--. 1 root root 3211 Feb 28 10:42 RPM-GPG-KEY-redhat-release -r--r--r--. 1 root root 3375 Feb 28 10:42 RPM-GPG-KEY-redhat-beta -r--r--r--. 1 root root 1455 Mar 22 11:55 extra_files.json -r--r--r--. 1 root root 114 Mar 22 12:01 media.repo -r--r--r--. 1 root root 1796 Mar 22 12:04 TRANS.TBL dr-xr-xr-x. 2 root root 4096 Mar 22 12:04 repodata dr-xr-xr-x. 2 root root 921600 Mar 22 12:04 Packages dr-xr-xr-x. 2 root root 2048 Mar 22 12:04 LiveOS dr-xr-xr-x. 2 root root 2048 Mar 22 12:04 isolinux dr-xr-xr-x. 3 root root 2048 Mar 22 12:04 images dr-xr-xr-x. 3 root root 2048 Mar 22 12:04 EFI dr-xr-xr-x. 4 root root 2048 Mar 22 12:04 addons [root@uaans mnt]#
4. Find the below information using yum-config-manager command. You could also check these configurations in /etc/yum.repos.d/uaans.repo file. (Find out your repo file )
[root@uaans ~]# yum-config-manager |egrep "baseurl|ui_id" baseurl = file:///var/repo ui_id = uaans-repo [root@uaans ~]#
5. Ensure /var/repo (where the current repositories resides) have sufficient space to accommodate RHEL 7.5 repo.
6. From /mnt , copy media.repo file to /etc/yum.repos.d directory and add baseurl.
[root@uaans mnt]# cp media.repo /etc/yum.repos.d/ [root@uaans yum.repos.d]# cd /etc/yum.repos.d/ [root@uaans yum.repos.d]# echo "baseurl=file:///mnt" >> media.repo [root@uaans yum.repos.d]# cat media.repo [InstallMedia] name=Red Hat Enterprise Linux 7.5 mediaid=1521745267.626363 metadata_expire=-1 gpgcheck=0 cost=500 baseurl=file:///mnt [root@uaans yum.repos.d]#
7. List the available repository.
[root@uaans yum.repos.d]# yum repolist Loaded plugins: langpacks, product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. repo id repo name status InstallMedia Red Hat Enterprise Linux 7.5 5,099 uaans-repo UAANS-GLOBAL 4,305 repolist: 9,404 [root@uaans yum.repos.d]#
8. Let’s merge/update “uaans-repo” repository from InstallMedia.
[root@uaans yum.repos.d]# reposync -p /var/repo/Packages/ --repoid=InstallMedia --norepopath -l -u |head Loaded plugins: langpacks, product-id file:///mnt/Packages/389-ds-base-1.3.7.5-18.el7.x86_64.rpm file:///mnt/Packages/389-ds-base-libs-1.3.7.5-18.el7.x86_64.rpm file:///mnt/Packages/ElectricFence-2.2.2-39.el7.i686.rpm file:///mnt/Packages/ElectricFence-2.2.2-39.el7.x86_64.rpm file:///mnt/Packages/GConf2-3.2.6-8.el7.i686.rpm file:///mnt/Packages/GConf2-3.2.6-8.el7.x86_64.rpm file:///mnt/Packages/GeoIP-1.5.0-11.el7.i686.rpm file:///mnt/Packages/GeoIP-1.5.0-11.el7.x86_64.rpm file:///mnt/Packages/ImageMagick-6.7.8.9-15.el7_2.i686.rpm [root@uaans yum.repos.d]# reposync -p /var/repo --repoid=InstallMedia --norepopath -l -u |wc -l 5100 [root@uaans yum.repos.d]#
* -u option won’t download the package to the destination directory . It just lists the files going to be synced or copied in existing repository.
* Almost 5100 rpm packages will be synced/copied during this activity.
* -p =- Destination repository directory.
* -norepopath Don’t add the reponame to the download path. Can only be used when syncing a single repository
(default is to add the reponame)
* -n, –newest-only Download only newest packages per-repo
* -l, –plugins enable yum plugin support
If you would like to maintain 7.0 & 7.5 packages in different directory , just remove “norepopath” .
Let’s begin to update the repo.
[root@uaans yum.repos.d]# reposync -p /var/repo --repoid=InstallMedia -l Loaded plugins: langpacks, product-id (1/5099): 389-ds-base-libs-1.3.7.5-18.el7.x86_64.rpm | 695 kB 00:00:00 (2/5099): 389-ds-base-1.3.7.5-18.el7.x86_64.rpm | 1.7 MB 00:00:00 (3/5099): ElectricFence-2.2.2-39.el7.i686.rpm | 35 kB 00:00:00 (4/5099): ElectricFence-2.2.2-39.el7.x86_64.rpm | 35 kB 00:00:00 (5/5099): GConf2-3.2.6-8.el7.i686.rpm | 1.0 MB 00:00:00 (6/5099): GeoIP-1.5.0-11.el7.i686.rpm | 1.1 MB 00:00:00 (7/5099): GConf2-3.2.6-8.el7.x86_64.rpm | 1.0 MB 00:00:00 (8/5099): ImageMagick-6.7.8.9-15.el7_2.i686.rpm | 2.1 MB 00:00:00 (9/5099): GeoIP-1.5.0-11.el7.x86_64.rpm | 1.1 MB 00:00:00 (10/5099): ImageMagick-c++-6.7.8.9-15.el7_2.i686.rpm | 152 kB 00:00:00 (11/5099): ImageMagick-c++-6.7.8.9-15.el7_2.x86_64.rpm | 146 kB 00:00:00 (12/5099): ImageMagick-perl-6.7.8.9-15.el7_2.x86_64.rpm | 147 kB 00:00:00 (13/5099): ImageMagick-6.7.8.9-15.el7_2.x86_64.rpm | 2.1 MB 00:00:00 (14/5099): LibRaw-0.14.8-5.el7.20120830git98d925.x86_64.rpm | 250 kB 00:00:00 (15/5099): LibRaw-0.14.8-5.el7.20120830git98d925.i686.rpm | 245 kB 00:00:00 (16/5099): ModemManager-1.6.10-1.el7.x86_64.rpm | 737 kB 00:00:00 (17/5099): ModemManager-glib-1.6.10-1.el7.x86_64.rpm | 231 kB 00:00:00 (18/5099): MySQL-python-1.2.5-1.el7.x86_64.rpm | 90 kB 00:00:00 (19/5099): ModemManager-glib-1.6.10-1.el7.i686.rpm | 229 kB 00:00:00 (20/5099): NetworkManager-1.10.2-13.el7.x86_64.rpm | 1.7 MB 00:00:00 (21/5099): NetworkManager-adsl-1.10.2-13.el7.x86_64.rpm | 158 kB 00:00:00 (22/5099): NetworkManager-config-server-1.10.2-13.el7.noarch.rpm | 143 kB 00:00:00
All the 5099 packages must be copied to the existing local repository.
9. Move the newly created repository directory in to meaningful name. Navigate to the repository directory /var/repo.
[root@uaans yum.repos.d]# cd /var/repo [root@uaans repo]# ls -lrt total 688 -r--r--r--. 1 root root 18092 Mar 6 2012 GPL -r--r--r--. 1 root root 3211 Apr 1 2014 RPM-GPG-KEY-redhat-release -r--r--r--. 1 root root 3375 Apr 1 2014 RPM-GPG-KEY-redhat-beta -r--r--r--. 1 root root 8266 Apr 4 2014 EULA -r--r--r--. 1 root root 108 May 7 2014 media.repo -r--r--r--. 1 root root 1568 May 7 2014 TRANS.TBL dr-xr-xr-x. 2 root root 4096 May 7 2014 repodata dr-xr-xr-x. 24 root root 4096 May 7 2014 release-notes dr-xr-xr-x. 2 root root 229376 May 7 2014 Packages dr-xr-xr-x. 2 root root 41 May 7 2014 LiveOS dr-xr-xr-x. 2 root root 4096 May 7 2014 isolinux dr-xr-xr-x. 3 root root 54 May 7 2014 images dr-xr-xr-x. 3 root root 17 May 7 2014 EFI dr-xr-xr-x. 4 root root 52 May 7 2014 addons drwxr-xr-x. 2 root root 266240 May 5 10:28 InstallMedia [root@uaans repo]# mv InstallMedia Packages-RHEL7.5 [root@uaans repo]# ls -ld Packages-RHEL7.5 drwxr-xr-x. 2 root root 266240 May 5 10:28 Packages-RHEL7.5 [root@uaans repo]#
10. Update the repository to build the package database.
[root@uaans repo]# createrepo --update /var/repo Spawning worker 0 with 5156 pkgs Workers Finished Saving Primary metadata Saving file lists metadata Saving other metadata Generating sqlite DBs Sqlite DBs complete [root@uaans repo]#
11. Repository has been updated with RHEL 7.5. The current repository holds both 7.0 & 7.5 packages. It’s time to test . Just run a yum update where the current system just runs on RHEL 7.0.
[root@uaans repo]# yum update Loaded plugins: langpacks, product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. Resolving Dependencies --> Running transaction check ---> Package ModemManager-glib.x86_64 0:1.1.0-6.git20130913.el7 will be updated ---> Package ModemManager-glib.x86_64 0:1.6.10-1.el7 will be an update ---> Package NetworkManager.x86_64 1:0.9.9.1-13.git20140326.4dba720.el7 will be obsoleted ---> Package NetworkManager.x86_64 1:1.10.2-13.el7 will be obsoleting
We could see that packages are available to update the system to RHEL 7.5.
In this system repository is configured locally . Here is the step by step guide to convert the existing repository to make it available in network via HTTP.
If the clients already using the repository , cache must be removed to see the updated repository.
# rm -rf /var/cache/yum/* # yum clean all
Hope this article is informative to you . Share it ! Comment it !! Be sociable .!!!