diff --git a/perl-xCAT/xCAT/data/discinfo.pm b/perl-xCAT/xCAT/data/discinfo.pm
index 43272157d..3a7d9d6dd 100755
--- a/perl-xCAT/xCAT/data/discinfo.pm
+++ b/perl-xCAT/xCAT/data/discinfo.pm
@@ -12,34 +12,41 @@ require Exporter;
 @EXPORT_OK = qw(distnames numdiscs);
 
 
-%distnames = (
-    "1310229985.226287" => "centos6",
-    "1323560292.885204" => "centos6.2",
-    "1341569670.539525" => "centos6.3",     #x86
-    "1362445555.957609" => "centos6.4",     #x86_64
-    "1385726732.061157" => "centos6.5",     #x86_64
-    "1438724467.511049" => "centos6.7",     #x86_64
-    "1463897259.552895" => "centos6.8",     #x86_64
-    "1404489053.504589" => "centos7.0",
-    "1427495138.035654" => "centos7.1",
+my %distnames = (
     "1450147276.351714" => "centos7.2",     #ppc64le
+    "1449699925.561114" => "centos7.2",     #x86_64
+    "1427495138.035654" => "centos7.1",
+    "1404489053.504589" => "centos7.0",
+
+    "1463897259.552895" => "centos6.8",     #x86_64
+    "1438724467.511049" => "centos6.7",     #x86_64
+    "1414159991.958686" => "centos6.6",
+    "1385726732.061157" => "centos6.5",     #x86_64
+    "1362445555.957609" => "centos6.4",     #x86_64
+    "1341569670.539525" => "centos6.3",     #x86
+    "1323560292.885204" => "centos6.2",
+    "1310229985.226287" => "centos6",
+
+    "1381776971.473332" => "centos5.10",    #x86_64
+    "1357930415.252042" => "centos5.9",     #x86_64
+    "1330913492.861127" => "centos5.8",     #x86_64
+    "1301444731.448392" => "centos5.6",
+    "1272326751.405938" => "centos5.5",
+    "1254416275.453877" => "centos5.4",     #x86_64
+    "1237641529.260981" => "centos5.3",
+    "1214240246.285059" => "centos5.2",
+    "1213888991.267240" => "centos5.2",
+    "1195929637.060433" => "centos5.1",
+    "1195929648.203590" => "centos5.1",
     "1176234647.982657" => "centos5",
+
     "1156364963.862322" => "centos4.4",
     "1178480581.024704" => "centos4.5",
-    "1195929648.203590" => "centos5.1",
-    "1195929637.060433" => "centos5.1",
-    "1213888991.267240" => "centos5.2",
-    "1214240246.285059" => "centos5.2",
-    "1237641529.260981" => "centos5.3",
-    "1272326751.405938" => "centos5.5",
-    "1330913492.861127" => "centos5.8",     #x86_64
-    "1357930415.252042" => "centos5.9",     #x86_64
-    "1381776971.473332" => "centos5.10",    #x86_64
     "1195488871.805863" => "centos4.6",
     "1195487524.127458" => "centos4.6",
-    "1301444731.448392" => "centos5.6",
-    "1414159991.958686" => "centos6.6",
+
     "1170973598.629055" => "rhelc5",
+
     "1170978545.752040" => "rhels5",
     "1192660014.052098" => "rhels5.1",
     "1192663619.181374" => "rhels5.1",
@@ -87,6 +94,7 @@ require Exporter;
     "1446216863.790260" => "rhels7.2",      #x86_64
     "1446216863.764721" => "rhels7.2",      #ppc64
     "1446216863.771788" => "rhels7.2",      #ppc64le
+
     "1285193176.593806" => "rhelhpc6",      #x86_64
     "1305067719.718814" => "rhelhpc6.1",    #x86_64
     "1321545261.599847" => "rhelhpc6.2",    #x86_64
@@ -99,6 +107,7 @@ require Exporter;
     "1399449226.140088" => "rhelhpc7.0",    #x86_64, RHEL ComputeNode
     "1424360759.772760" => "rhelhpc7.1",    #x86_64, RHEL ComputeNode
     "1446216863.725127" => "rhelhpc7.2",    #x86_64, RHEL ComputeNode
+
     "1194015916.783841" => "fedora8",
     "1194015385.299901" => "fedora8",
     "1210112435.291709" => "fedora9",
@@ -113,6 +122,7 @@ require Exporter;
     "1372355769.065812" => "fedora19",      #x86_64 DVD ISO
     "1372402928.663653" => "fedora19",      #ppc64 DVD ISO
     "1386856788.124593" => "fedora20",      #x86_64 DVD ISO
+
     "1194512200.047708" => "rhas4.6",
     "1194512327.501046" => "rhas4.6",
     "1241464993.830723" => "rhas4.8",       #x86-64