Like @Tom-Elliott said, the initial postdownload script always runs. However, you can use CASE or IF statements to either call a function or open another script. Here is my current postdownload script that I got from one of @george1421 and his wonderful driver injection scripts found here
#!/bin/bash . /usr/share/fog/lib/funcs.sh [[ -z $postdownpath ]] && postdownpath="/images/postdownloadscripts/" if [ $img == "Win7BaseVM" ] || [ $img == "Win10BaseVM" ] ; then case $osid in 5|6|7|9) clear [[ ! -d /ntfs ]] && mkdir -p /ntfs getHardDisk if [[ -z $hd ]]; then handleError "Could not find hdd to use" fi getPartitions $hd for part in $parts; do umount /ntfs >/dev/null 2>&1 fsTypeSetting "$part" case $fstype in ntfs) dots "Testing partition $part" ntfs-3g -o force,rw $part /ntfs ntfsstatus="$?" if [[ ! $ntfsstatus -eq 0 ]]; then echo "Skipped" continue fi if [[ ! -d /ntfs/windows && ! -d /ntfs/Windows && ! -d /ntfs/WINDOWS ]]; then echo "Not found" umount /ntf >/dev/null 2>&1 continue fi echo "Success" break ;; *) echo " * Partition $part not NTFS filesystem" ;; esac done if [[ ! $ntfsstatus -eq 0 ]]; then echo "Failed" debugPause handleError "Failed to mount $part ($0)\n Args: $*" fi echo "Done" debugPause . ${postdownpath}fog.deletelog . ${postdownpath}fog.drivers #. ${postdownpath}fog.ad umount /ntfs ;; *) echo "Non-Windows Deployment" debugPause return ;; esac fiYou can see that I have an if statement at the beginning to only run his driver injection script if the image name is one of my golden image VM’s.