you can import an OS image directly from the installer DVD to make it "pristine," in the sense that it will act like a clean retail DVD install you do yourself from the disk.
There are some python scripts located here:
Code:
bash-3.2# pwd
/Users/tlarkin/instadmg/AddOns/InstaUp2Date
bash-3.2# ls
.svn checksum.pyc
CatalogFiles importDisk.py
InstaUp2Date Instructions.rtf instaUp2Date.py
checksum.py
bash-3.2#
See the attached screen shots as well. Now, if you have a retail DVD of OS X in your optical drive, and from the command line go into /Users/tlarkin/instadmg/AddOns/InstaUp2Date and run the command:
It will run a python script that will auto-magically create an exact image from the installer DVD. Then after it is done, you can from the same directory run:
This will take that OS image you just made, and auto-magically download and install all Apple OS updates into that image file. So, lets say you toss in a 10.5.4 disk for argument's sake. You run the first script and it creates an image file of that disk. The second script will download every update from Apple for 10.5 and splice it into the image file, thus creating an up-to-date 10.5.8 image which you can now install via block copying on your Macs. This makes it easy to always maintain an up-to-date installer, and thus does not make you have to ever download software updates through the OS.
The only caveat is that it will not apply firmware updates because the nature of those updates require some sort of user interaction.