diff -Naur sbopkg/src/usr/bin/sbopkg sbopkg-hba/src/usr/bin/sbopkg
--- sbopkg/src/usr/bin/sbopkg	2008-03-29 15:19:51.000000000 -0600
+++ sbopkg-hba/src/usr/bin/sbopkg	2008-03-29 15:20:15.000000000 -0600
@@ -35,13 +35,26 @@
 VER=0.0.4
 
 sanity_checks () {
-# Check if config file is there and if yes, set some variables
+# Check if config file is there and if so,
+# check that it has all needed variables
+# with any value, and set them.
 if [ ! -e $SBOPKG_CONF ]; then
     echo "$SCRIPT: No $SBOPKG_CONF file was found."
     echo "Please create it and run $SCRIPT again." 1>&2
     exit 1
 else
+    for i in RSYNCMIRROR SLACKVER LOCALREPO SRCDIR TMP KEEPLOG
+    do
+        grep "^$i=.\{1,\}" "$SBOPKG_CONF" > /dev/null
+        if [ "$?" != 0 ]; then
+            echo "$SCRIPT: Can't find variable $i declared in"
+            echo "$SCRIPT: $SBOPKG_CONF."
+            echo "Please, declare it and run $SCRIPT again."
+            exit 1
+    fi
     . $SBOPKG_CONF
+done    
+
 fi
 if [ ! -d "$SRCDIR" ]; then
     echo "Creating local cache directory $SRCDIR to keep \