individually disable guest services and check for failures

tools/appliance/systemvmtemplate/scripts/configure_systemvm_services.sh

diff --git a/tools/appliance/systemvmtemplate/scripts/configure_systemvm_services.sh b/tools/appliance/systemvmtemplate/scripts/configure_systemvm_services.sh
index 386a4a9..fd1b525 100644
--- a/tools/appliance/systemvmtemplate/scripts/configure_systemvm_services.sh
+++ b/tools/appliance/systemvmtemplate/scripts/configure_systemvm_services.sh
@@ -111,7 +111,10 @@
   systemctl disable vgauth
 
   # Disable guest services which will selectively be started based on hypervisor
-  systemctl disable open-vm-tools xe-daemon hyperv-daemons.hv-fcopy-daemon.service hyperv-daemons.hv-kvp-daemon.service hyperv-daemons.hv-vss-daemon.service qemu-guest-agent || true
+  systemctl disable open-vm-tools
+  systemctl disable xe-daemon
+  systemctl disable hyperv-daemons.hv-fcopy-daemon.service hyperv-daemons.hv-kvp-daemon.service hyperv-daemons.hv-vss-daemon.service
+  systemctl disable qemu-guest-agent
 
   configure_apache2
   configure_strongswan