macOS Beta – How to Download a macOS Beta Point Update

betamacos

What this question is not about

  1. Downloading macOS Developer Beta Access Utility
  2. Downloading a stable/GM release of macOS
  3. Downloading the .0 release of a new macOS beta (when it is released at WWDC)

Say I want to install a macOS beta point update to a Mac that is never online (say if I had a lake house Mac or something). How would I download a .dmg or something so that I could install it on another machine. The macOS Developer Beta Access Utility just starts the update process on the machine it runs on.

Best Answer

I'm sorry, you're question is still a bit confusing to me, but I'll take a stab at it:

Your best bet is probably to comb through the listings you'll find in the Software Update catalogs found in Seeding.framework. That is:
plutil -p /System/Library/PrivateFrameworks/Seeding.framework/Resources/SeedCatalogs.plist, and (since we're talking Dev builds), probably
curl -Ls https://swscan.apple.com/content/catalogs/others/index-10.14seed-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog | plutil -p.

You'll then need to grep around for the packages you're looking for; they're not always named the same, but if you grep for macOSUpd, you'll find the necessary packages, i.e., http://swcdn.apple.com/content/downloads/46/21/041-19988/kct9qwin7h5nz0awoc9ke03m2s7qp4q7t9/macOSUpd10.14.2ForSeed.pkg.

Does that help?

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