macOS Catalina has arrived and as you may know, Apple sends upgrade notifications to all macOS devices soon after release. While Automox will be compatible with macOS Catalina shortly after it’s public release, you may not be.

Apple installs this upgrade notifier via Apple Software Update. If you are using an internal Software Update Server, you can remove the update macOSInstallerNotification_GM and ‘macOS Catalina’ from scope, if not you can tell your macOS devices to ignore this update.

If you’re reading this too late and the update has already installed, this script will still remove the notifier bundle.

Check script:

#!/bin/bash





set -e





############################################################################


# suppress_macOS_upgrade_notifications_check


#


# exit 0 = upgrade notifier is not installed AND is not pending installation


# exit 1 = upgrade notifier is installed OR pending installation


############################################################################





# Exit if Apple's notifier is pending installation


/usr/bin/python <<EOF


import sys


from Foundation import CFPreferencesCopyAppValue





ignored_updates = CFPreferencesCopyAppValue('InactiveUpdates', 'com.apple.SoftwareUpdate')


if 'macOSInstallerNotification_GM' and 'macOS Catalina' not in ignored_updates:


	sys.exit(1)


EOF





# Exit if Apple's notifier is installed


if r -e /Library/Bundles/OSXNotification.bundle ]; then


	exit 1


fi





exit 0

Remediation script:

#!/bin/bash





set -e





############################################################################


# suppress_macOS_upgrade_notifications_check_remediate


#


# exit 0 = upgrade notifier is not installed AND is not pending installation


# exit 1 = upgrade notifier is installed OR pending installation


############################################################################





# Return 1 if notifier update is not ignored by softwareupdate


sw_update=$(/usr/bin/python <<EOF


import sys


from Foundation import CFPreferencesCopyAppValue





ignored_updates = CFPreferencesCopyAppValue('InactiveUpdates', 'com.apple.SoftwareUpdate')


if 'macOSInstallerNotification_GM' and 'macOS Catalina' not in ignored_updates:


	print(1)


else:


	print(0)


EOF


)





# ignore notifier from softwareupdate


if r  $sw_update -eq 1 ]]; then


	/usr/sbin/softwareupdate --ignore 'macOSInstallerNotification_GM' 'macOS Catalina' 1>/dev/null


fi





# Move notifier to Disabled folder if it exists


if r -e /Library/Bundles/OSXNotification.bundle ]; then


	mkdir /Library/Bundles/Disabled


	mv /Library/Bundles/OSXNotification.bundle /Library/Bundles/Disabled/


fi





exit 0