How to specify a driver update disk during OS install

Environment

• Red Hat Enterprise Linux 7.1 and later minor releases (of RHEL 7)
• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 5
• Missing or out dated hardware driver in RHEL installation image
• driver update disk supplied by vendor

Issue

• When installing the OS, a message prompt "Insert driver disc" is displayed. Later an error "Driver incompatible with OS" or "Impossible to mount disc" messages appears if no actions are taken.
• How can I use a boot option to specify a driver update disk?
• How can I specify the location of a driver update image file or driver update disk?

Resolution

• To specify the disk update driver, please refer to
  • Red Hat Enterprise Linux 5 Installation Guide
  • Red Hat Enterprise Linux 6 Installation Guide
  • Red Hat Enterprise Linux 7 Installation Guide
    • Note: on RHEL 7 only .iso and .rpm file formats are supported for driver updates. Neither .img nor .dd files are supported.

For additional details, see Where can I download Driver Update Program (DUP) disks?.

Root Cause

• If the installer can't load drivers for a piece of hardware that is essential to the installation process (i.e. - unable to detect any network or storage controllers), it will require a driver update disk to be provided during installation.

Diagnostic Steps

• Install OS

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