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Repositories

Updated Mar 27, 2021 ·

Tasks​

  1. Loop mount the install disk/ISO that you've used to set up RHEL 8.
  2. Configure the loop-mounted ISO as a repo.
  3. Configure your system to use this repo as the only repo.

Solution​

1. Loop mount the ISO file​

Assuming your RHEL 8 ISO file is located at /path/to/rhel8.iso.

Create a Mount Point:

sudo mkdir /mnt/iso

Loop Mount the ISO:

sudo mount -o loop /path/to/rhel8.iso /mnt/iso

2. Configure loop-mounted ISO as a repo.​

Create a new repository file (e.g., rhel8.repo) under /etc/yum.repos.d/:

sudo vi /etc/yum.repos.d/rhel8.repo

Add the following content to rhel8.repo:

[rhel8-dvd]
name=RHEL 8 DVD Repository
baseurl=file:///mnt/iso/AppStream
gpgcheck=1
enabled=1
gpgkey=file:///mnt/iso/RPM-GPG-KEY-redhat-release

[rhel8-dvd-extras]
name=RHEL 8 DVD Extras Repository
baseurl=file:///mnt/iso/Extras
gpgcheck=1
enabled=1
gpgkey=file:///mnt/iso/RPM-GPG-KEY-redhat-release

Adjust baseurl paths (AppStream and Extras) according to your ISO structure. These paths assume standard RHEL 8 ISO layout.

Next, import the RPM-GPG-KEY-redhat-release from the mounted ISO to /etc/pki/rpm-gpg/ and set appropriate permissions if needed:

sudo cp /mnt/iso/RPM-GPG-KEY-redhat-release /etc/pki/rpm-gpg/
sudo chmod 644 /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

Clean YUM Cache and Test:

sudo yum clean all
sudo yum makecache

3. Use this repo as the only repo.​

List Existing Repositories:

sudo yum repolist all

Disable all existing repositories except for rhel8-dvd and rhel8-dvd-extras (or whatever names you used in rhel8.repo).

sudo yum-config-manager --disable '*'

Then enable only the new repositories:

sudo yum-config-manager --enable rhel8-dvd
sudo yum-config-manager --enable rhel8-dvd-extras

Verify Repository Configuration:

sudo yum repolist

This should show only the repositories configured in rhel8.repo.