The following instructions demonstrate how to import the latest macOS upgrade to munki for distribution to all Orchard Macs.
To download the latest macOS release we use the installinstallmacos.py script from Greg Neagle's macadmin-scripts repo. This script creates disk images containing macOS Installer applications available via Apple's softwareupdate catalogs. The repo is already cloned on the build host Autumn-Glory at /srv/munki/macadmin-scripts - please ensure the repo is up to date prior to running (with git pull.)
Run the script installinstallmacos.py as the root user, choose a macOS and download.
Once you have your dmg downloaded, use munkiimport on the repo server to manually import the dmg, e.g. munkiimport Install_macOS_Big_Sur-11.3.1.dmg The pkginfo's name should always relate to the version of macOS for example Install_macOS_Big_Sur the version of the pkg should match the version of macOS imported e.g. 11.3.1, and should be imported to the munki repo subfolder macOS.
To create the product icon for the OSC, mount the dmg and go to the Contents/Resources folder within the Installer application. Export a 256x256 png file of the InstallAssistant.icns icon, named the same as the munki pkginfo's name key (e.g. Install_macOS_Big_Sur.png) and copy it to /srv/munki/orchard_repo/icons
Use manana.orchard.private to create a new computer attribute mapping. Insert an attribute value of a pre-configured Jamf Smart Group all the computers you want to scope to.
Greg Neagles script - https://github.com/munki/macadmin-scripts
Using Munkiimport https://github.com/munki/munki/wiki/munkiimport
Jamf smart group example https://jss.orchard.ox.ac.uk/smartComputerGroups.html?id=748&o=r
