diff --git a/xCAT-IBMhpc/share/xcat/IBMhpc/compute.rhels6.ppc64.postinstall b/xCAT-IBMhpc/share/xcat/IBMhpc/compute.rhels6.ppc64.postinstall
index 8d5e83aa0..1f5fd228c 100755
--- a/xCAT-IBMhpc/share/xcat/IBMhpc/compute.rhels6.ppc64.postinstall
+++ b/xCAT-IBMhpc/share/xcat/IBMhpc/compute.rhels6.ppc64.postinstall
@@ -19,9 +19,17 @@ arch=$3
 profile=$4
 workdir=$5
 
-hpc=/opt/xcat/share/xcat/IBMhpc
 otherpkgs=/install/post/otherpkgs/$osver/$arch
 
+################
+# This script runs other postinstall scripts from the $hpc directory
+# If you have created a custom copy of ANY of these scripts,
+#   make sure to change the execution path from $hpc/<product> to the location
+#   you have placed your script in
+###############
+hpc=/opt/xcat/share/xcat/IBMhpc
+custom=/install/custom/netboot/rh
+installps=/install/postscripts
 
 # Run default postinstall shipped with xcat
 /opt/xcat/share/xcat/netboot/rh/compute.rhels6.ppc64.postinstall $1 $2 $3 $4 $5
diff --git a/xCAT-IBMhpc/share/xcat/IBMhpc/compute.sles11.ppc64.postinstall b/xCAT-IBMhpc/share/xcat/IBMhpc/compute.sles11.ppc64.postinstall
index ffdd993c5..b36a6db4c 100755
--- a/xCAT-IBMhpc/share/xcat/IBMhpc/compute.sles11.ppc64.postinstall
+++ b/xCAT-IBMhpc/share/xcat/IBMhpc/compute.sles11.ppc64.postinstall
@@ -19,9 +19,18 @@ arch=$3
 profile=$4
 workdir=$5
 
-hpc=/opt/xcat/share/xcat/IBMhpc
 otherpkgs=/install/post/otherpkgs/$osver/$arch
 
+################
+# This script runs other postinstall scripts from the $hpc directory
+# If you have created a custom copy of ANY of these scripts,
+#   make sure to change the execution path from $hpc/<product> to the location
+#   you have placed your script in
+###############
+hpc=/opt/xcat/share/xcat/IBMhpc
+custom=/install/custom/netboot/sles
+installps=/install/postscripts
+
 
 # Run default postinstall shipped with xcat
 /opt/xcat/share/xcat/netboot/sles/compute.sles11.postinstall $1 $2 $3 $4 $5
diff --git a/xCAT-IBMhpc/share/xcat/IBMhpc/min-compute.rhels6.ppc64.postinstall b/xCAT-IBMhpc/share/xcat/IBMhpc/min-compute.rhels6.ppc64.postinstall
index e51833ed5..755db3643 100755
--- a/xCAT-IBMhpc/share/xcat/IBMhpc/min-compute.rhels6.ppc64.postinstall
+++ b/xCAT-IBMhpc/share/xcat/IBMhpc/min-compute.rhels6.ppc64.postinstall
@@ -19,9 +19,18 @@ arch=$3
 profile=$4
 workdir=$5
 
-hpc=/opt/xcat/share/xcat/IBMhpc
 otherpkgs=/install/post/otherpkgs/$osver/$arch
 
+################
+# This script runs other postinstall scripts from the $hpc directory
+# If you have created a custom copy of ANY of these scripts,
+#   make sure to change the execution path from $hpc/<product> to the location
+#   you have placed your script in
+###############
+hpc=/opt/xcat/share/xcat/IBMhpc
+custom=/install/custom/netboot/rh
+installps=/install/postscripts
+
 
 # Run default postinstall shipped with xcat
 /opt/xcat/share/xcat/netboot/rh/compute.rhels6.ppc64.postinstall $1 $2 $3 $4 $5
diff --git a/xCAT-IBMhpc/share/xcat/IBMhpc/min-compute.sles11.ppc64.postinstall b/xCAT-IBMhpc/share/xcat/IBMhpc/min-compute.sles11.ppc64.postinstall
index 0e55f4936..fdb5d9ed5 100755
--- a/xCAT-IBMhpc/share/xcat/IBMhpc/min-compute.sles11.ppc64.postinstall
+++ b/xCAT-IBMhpc/share/xcat/IBMhpc/min-compute.sles11.ppc64.postinstall
@@ -19,9 +19,18 @@ arch=$3
 profile=$4
 workdir=$5
 
-hpc=/install/custom/netboot/sles/ling/
 otherpkgs=/install/post/otherpkgs/$osver/$arch
 
+################
+# This script runs other postinstall scripts from the $hpc directory
+# If you have created a custom copy of ANY of these scripts,
+#   make sure to change the execution path from $hpc/<product> to the location
+#   you have placed your script in
+###############
+hpc=/opt/xcat/share/xcat/IBMhpc
+custom=/install/custom/netboot/sles
+installps=/install/postscripts
+
 
 # Run default postinstall shipped with xcat
 /opt/xcat/share/xcat/netboot/sles/compute.sles11.postinstall $1 $2 $3 $4 $5