Why are logical volumes failing to activate during boot with the error "Timed out waiting for device"?

Solution Verified - Updated -

Issue

  • After installing or updating the kernel, logical volumes are not activated during boot.
  • During boot, there are messages stating Timed out waiting for device and the boot drops into maintenance mode.

Environment

  • Red Hat Enterprise Linux 7.1
  • Red Hat Enterprise Linux 7.2

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