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Review Quiz

  1. What is the minimum version of Mac OS X supported by a new Mac computer?
  2. What two methods can be used to create a Mac OS X v10.5 system disk image suitable for deployment?
  3. What are the benefits of each system image creation method?
  4. Which files should be removed prior to creating a cloned system image?
  5. What are the main steps required to build a modular system image?
  6. How can Apple Software Restore (ASR) be used to restore a system image to multiple computers simultaneously?
  7. What do you enter at the command line to start an ASR restore or clone?
  8. How can the Apple Custom Software Solutions (CSS) help with your deployment?

Answers

  1. The minimum version of Mac OS X supported by a new Mac computer is the version that it shipped with from the factory.
  2. The two methods that can be used to create a Mac OS X v10.5 system disk image suitable for deployment are a cloned system image created by setting up a model computer and then copying the system to a disk image, and a modular system image built by applying multiple installation packages to a disk image.
  3. Cloned system images offer an easier workflow for novice administrators and require less time to create the initial system image. Modular system images offer these benefits: system images are clean because they have never been booted; system images have no model-specific settings; Apple updates won’t interfere with customizations because updates are always applied prior to customizations; this method decreases your workload when creating multiple system images that require unique software and configurations; this method decreases your workload when updating system images; multiple and updated system images are perfectly consistent for similar items every single time; all configurations are fully documented and easily audited; this method requires simplified testing for updates and image modifications; this method is easily automated; and this method is easily integrated with system maintenance workflows and third-party deployment tools.
  4. Before creating a cloned system image, you should remove user-specific files, computer-specific files, and cache files that could cause problems when deployed to other systems.
  5. The main steps for building a modular system image are create a new sparse disk image; reformat the sparse disk image to permit the installation of Mac OS X; mount a disk image of the Mac OS X installation media; install Mac OS X to the sparse image optionally using an installation choices file; install additional Apple software and updates; install third-party items and custom configurations; create a read-only disk image from the contents of the mounted modular disk image volume; and scan the read/write modular disk image for restoration purposes.
  6. A Mac computer can be configured to host a multicast ASR stream that can be simultaneously accessed by multiple computers to restore a system image to a local volume.
  7. To start an ASR restore or clone, at the command line enter sudo asr -source followed by the path to the source volume or prepared disk image, and then -target followed by the path to the destination target, and then any options that you want to specify.
  8. The Apple CSS team can build and test a customized system image based on your deployment specifications. This custom system image can be deployed to new Macs “at the factory” before they are delivered to you.
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