[RED HAT LINUX] Installing software offline

Source

https://unix.stackexchange.com/questions/443149/how-to-get-package-dependency-tree-for-offline-download-when-you-have-no-interne

First, create a Virtual Machine and do a fresh install of the same RHEL version on it. Make sure you perform a minimal installation so that the packages installed on the machine are kept to the minimum required for the machine to run.

Then, run the following commands on the machine:

[vm]# mkdir /root/tmppkg
[vm]# yum --downloadonly --downloaddir=/root/tmppkg install foobar

Yum will download Foobar and all its dependencies recursively, storing the RPMs in the directory mentioned above.

Create a repository from the bunch of packages downloaded by Yum.

[vm]# chown -R root:root /root/tmppkg
[vm]# createrepo /root/tmppkg
[vm]# chmod -R 755 /root/tmppkg

Transfer the tmppkg directory on the server (via USB thumb drive or CD-ROM) and put it in the /share directory. Then create a file /etc/yum.repos.d/local.repo as such:

[local]
name=Local repository
baseurl=file:///share/tmppkg
enabled=1
gpgcheck=0
protect=1

Now you can install the Foobar package on the server in the usual way. The package manager will fetch all the necessary content from the newly created local repository:

[server]# yum install foobar

Once you’ve installed the package, the /share/tmppkg directory can be safely deleted.