This issue was originally opened by @erikgraa as hashicorp/packer#9117. It was migrated here as a result of the Packer plugin split. The original body of the issue is below.

Feature Description

Including more than one of either iso_urls or iso_paths for a build seems to permanently add an extra CD-rom drive to a virtual machine.

Use Case(s)

It would be nice if it were possible to revert to having only a single CD-rom just prior to a build finishing up. Rarely does one want more than one CD-rom apart from during a packer build.