Why does system fails to mount ISO after In-Place upgrade to RHEL 9?

Solution Verified - Updated -

Issue

  • After In Place Upgrade to RHEL 9, unable to mount ISO.

    mount: /mnt/local_repo/ : unknown filesystem type 'iso9660'.

Environment

  • Red Hat Enterprise Linux 9
  • Kernel Module iso9660(isofs)

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content