diff --git a/texlive-filesystem.changes b/texlive-filesystem.changes
index 13db554..5bc8911 100644
--- a/texlive-filesystem.changes
+++ b/texlive-filesystem.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Sep 11 15:18:34 UTC 2012 - werner@suse.de
+
+- Fix update script: do not override with wrong md5 check sum for
+  language format check 
+- Run updmap-sys only if required
+
 -------------------------------------------------------------------
 Thu Aug  2 13:17:40 UTC 2012 - werner@suse.de
 
diff --git a/update.texlive b/update.texlive
index cf7b6c0..3546830 100644
--- a/update.texlive
+++ b/update.texlive
@@ -175,8 +175,8 @@ for run in /var/run/texlive/run-fmtutil* ; do
     language)
 	test -n "${cnf_ldat}" -a -n "${cnf_ldef}" || continue
 	set -- $(md5sum < ${cnf_ldat})
-	set -- $(md5sum < ${cnf_ldef})
 	echo $1 > ${md5_ldat}
+	set -- $(md5sum < ${cnf_ldef})
 	echo $1 > ${md5_ldef}
 	test $VERBOSE = true && echo -en "\r[ ]Handle language.dat setups."
 	fmtutil-sys --byhyphen ${cnf_ldat} < /dev/null 1>&4 2>&4
@@ -196,6 +196,7 @@ for run in /var/run/texlive/run-fmtutil* ; do
     esac
     rm -f /var/run/texlive/run-fmtutil*
 done
+
 for run in /var/run/texlive/run-updmap* ; do
     if test -e $run ; then
 	type -p updmap-sys  &> /dev/null || { echo "${0##*/}: No updmap-sys in PATH ... skipping" 1>&2; break; }
@@ -212,15 +213,17 @@ for run in /var/run/texlive/run-updmap* ; do
 	    test $VERBOSE = true && echo -en "\r[ ]Updating TeX font mappings."
 	    updmap-sys --nohash --nomkmap --syncwithtrees < /dev/null 1>&4 2>&4
 	    let rc+=$?
-	    enablemaps | \
 	    while read line ; do
+		let n++
 		line='^#![[:space:]]*((Mixed)?Map)[[:space:]]*('$line')'
 		emap=$(sed -n -r "s/$line/\1=\3/p" ${cfg})
 		updmap-sys --nohash --nomkmap --enable $emap < /dev/null 1>&4 2>&4
 		let rc+=$?
-	    done
-	    updmap-sys < /dev/null 1>&4 2>&4
-	    let rc+=$?
+	    done < <(enablemaps)
+	    if ((n > 0)) ; then
+	    	updmap-sys < /dev/null 1>&4 2>&4
+	    	let rc+=$?
+	    fi
 	    test $VERBOSE = true && echo
 	fi
     fi