A script to enable NetBoot storage settings for a specified volume. Replicates using Server.app to select 'Images & Client Data' for a specified volume. Takes one parameter: the volume to enable. If no parameter is provided, it will enable the root volume for NetBoot.

enableNetBootStorage.sh

#!/bin/bash
OSXVersion=$(sw_vers -buildVersion)
if [[ "$OSXVersion" < "12A" ]]; then
	ServerAdminPath="/usr/sbin/serveradmin"
else
	ServerAdminPath="/Applications/Server.app/Contents/ServerRoot/usr/sbin/serveradmin"
fi
if [ ! -e $ServerAdminPath ]; then
	echo "Unable to find 'serveradmin' tool. Is Server.app in the Applications folder?"
	exit 1
fi

# Disable NetBoot service.
if ! $ServerAdminPath stop netboot; then
	echo "Error trying to disable the NetBoot service."
	exit 2
fi

if [ -z "$1" ]; then
	storageVolume="/"
else
	storageVolume="$1"
fi

# Get index for the volume provided.
netBootStorageIndex=$($ServerAdminPath settings netboot:netBootStorageRecordsArray | grep -e \"$storageVolume\" | awk -F : '{print $(NF-1)}')

# Enable for Images
$ServerAdminPath settings netboot:netBootStorageRecordsArray | sed "s/\($netBootStorageIndex:sharepoint =\) no/\1 yes/g" | $ServerAdminPath settings
# Enable for Client Data
$ServerAdminPath settings netboot:netBootStorageRecordsArray | sed "s/\($netBootStorageIndex:clients =\) no/\1 yes/g" | $ServerAdminPath settings

# Re-enable NetBoot service.
if ! $ServerAdminPath start netboot; then
	echo "Error trying to re-enable the NetBoot service."
	exit 2
fi

exit 0