How to extract a Red Hat Enterprise Linux ISO/DVD

Environment

• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9

Issue

• How to extract the contents of the RHEL installation DVD?

Resolution

NOTE: The RHEL9.2 DVD available on Customer Portal cannot be extracted with external utilities such as 7z.
Using the procedure below is known to always work.

1. Mount the DVD iso file:

   # mount -o loop /<PATH>/<TO>/<ISO-FILE>.iso /mnt
   

2. Create the target directory to store the extracted files:

   # mkdir -p /<PATH>/<TO>/<TARGET>
   

3. Use the tar tool to safely copy the content to the target directory:

   # tar cf - -C /mnt . | tar xf - -C /<PATH>/<TO>/<TARGET>
   

4. Unmount the DVD iso file:

   # umount /mnt
   

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