diff --git a/scripts/external_repos_updates.sh b/scripts/external_repos_updates.sh
index 2b2d99b..a18a0cd 100755
--- a/scripts/external_repos_updates.sh
+++ b/scripts/external_repos_updates.sh
@@ -2,44 +2,66 @@
 
 REPOMD="repodata/repomd.xml"
 
-KOJI_CACHE="/var/cache/cbs-monitorexternalrepos"
+KOJI_CACHE="/tmp/cache/cbs-monitorexternalrepos"
 UPDATED_REPOS=""
 UPDATED_BUILDROOTS=`mktemp`
+SUPPORTED_ARCHES="x86_64 i386 ppc64le aarch64"
 
-# Ensure the cache directory is available                                                                                                                                                                                                
-[ ! -d $KOJI_CACHE ] && mkdir -p $KOJI_CACHE 
+# Ensure the cache directory is available
+[ ! -d $KOJI_CACHE ] && mkdir -p $KOJI_CACHE
 
 OLDIFS="$IFS"
 IFS=$'\n'
 for REPO in `koji list-external-repos --quiet`
 do
-      sha=""
-      oldsha=""
-      repourl=`echo $REPO | rev| cut -d ' ' -f 1| rev | sed 's/\$arch/x86_64/g'`
-      reponame=`echo $REPO | cut -d ' ' -f 1`
-      if [ "x$reponame" == "x" ]
-      then
-          echo "Repository $REPO is malformed."
-          break
-      fi 
-      sha=`curl --silent $repourl/$REPOMD | sha256sum`
-      if [ $? -gt 0 ]
-      then
-          echo "Couldn't retrieve $repourl/$REPOMD. Skipping $reponame regeneration."
-          continue
-      fi
-      if [ ! -f $KOJI_CACHE/$reponame.sha256sum ] 
-      then
-           echo "$sha" > $KOJI_CACHE/$reponame.sha256sum 
-      else
-           oldsha=`cat $KOJI_CACHE/$reponame.sha256sum`
-           diff <(echo "$sha") <(echo "$oldsha") &> /dev/null
-           if [ $? -gt 0 ]
-           then
-                UPDATED_REPOS="$UPDATED_REPOS $reponame"
-                echo "$sha" > $KOJI_CACHE/$reponame.sha256sum
-           fi
-      fi
+	IFS="$OLDIFS"
+	for ARCH in $SUPPORTED_ARCHES
+	do
+		httpcode=""
+		sha=""
+		oldsha=""
+		eval repourl=`echo $REPO | rev| cut -d ' ' -f 1| rev | sed 's#\$arch#$ARCH#g'`
+		reponame=`echo $REPO | cut -d ' ' -f 1`
+		if [ "x$reponame" == "x" ]
+		then
+			echo "Repository $REPO is malformed."
+			break
+		fi
+		httpcode=$(curl -s --head -w %{http_code} $repourl -o /dev/null)
+		if [ $? -gt 0 ]
+		then
+			echo "[WARN] Couldn't retrieve $repourl . Skipping $reponame regeneration."
+			continue
+		else
+			httpcode=$(( httpcode + 0 ))
+			if [ $httpcode -gt 400 ]
+			then
+				echo "[INFO] Skipping $reponame.$ARCH ; $ARCH not available."
+				continue
+			else
+				sha=`curl --silent $repourl/$REPOMD | sha256sum`
+				if [ $? -gt 0 ]
+				then
+					echo "Couldn't retrieve $repourl/$REPOMD. Skipping $reponame regeneration."
+					continue
+				fi
+				if [ ! -f $KOJI_CACHE/$reponame.$ARCH.sha256sum ]
+				then
+					echo "$sha" > $KOJI_CACHE/$reponame.$ARCH.sha256sum
+					UPDATED_REPOS="$UPDATED_REPOS $reponame"
+				else
+					oldsha=`cat $KOJI_CACHE/$reponame.$ARCH.sha256sum`
+					diff <(echo "$sha") <(echo "$oldsha") &> /dev/null
+					if [ $? -gt 0 ]
+					then
+						echo "in"
+						UPDATED_REPOS="$UPDATED_REPOS $reponame"
+						echo "$sha" > $KOJI_CACHE/$reponame.$ARCH.sha256sum
+					fi
+				fi
+			fi
+		fi
+	done
 done
 IFS="$OLDIFS"