Merge branch 'debian' of https://github.com/nrgaway/core-agent-linux into debian

debian/qubes-core-agent.postinst

@@ -117,18 +117,22 @@ systemdInfo() {
     unit=${1}
     return_global_var=${2}
 
-    declare -A INFO
+    declare -A INFO=()
     while read line; do
         INFO[${line%%=*}]="${line##*=}"
     done < <(systemctl show ${unit} 2> /dev/null)
+
     setArrayAsGlobal INFO $return_global_var
+    return ${#INFO[@]}
 }
 
 displayFailedStatus() {
     action=${1}
     unit=${2}
 
-    systemdInfo ${unit} info
+    # Only display if there are results.  In chroot environmnet there will be 
+    # no results to 'systemctl show' command
+    systemdInfo ${unit} info || {
         echo
         echo "==================================================="
         echo "FAILED: systemd ${action} ${unit}"
@@ -140,6 +144,7 @@ displayFailedStatus() {
         echo "UnitFileState = ${info[UnitFileState]}"
         echo
     }
+}
 
 # Disable systemd units
 disableSystemdUnits() {