diff --git a/xCAT-server-2.0/share/xcat/netboot/centos/compute.exlist b/xCAT-server-2.0/share/xcat/netboot/centos/compute.exlist
new file mode 100644
index 000000000..fb4fb072b
--- /dev/null
+++ b/xCAT-server-2.0/share/xcat/netboot/centos/compute.exlist
@@ -0,0 +1,13 @@
+./usr/share/man*
+./usr/share/locale*
+./usr/share/i18n*
+./var/cache/yum*
+./usr/share/doc*
+./usr/share/gnome*
+./usr/share/zoneinfo*
+./usr/share/cracklib*
+./usr/share/info*
+./usr/share/omf*
+./usr/lib/locale*
+./usr/lib/perl5*
+./boot*
diff --git a/xCAT-server-2.0/share/xcat/netboot/centos/compute.pkglist b/xCAT-server-2.0/share/xcat/netboot/centos/compute.pkglist
new file mode 100644
index 000000000..b6e78fee5
--- /dev/null
+++ b/xCAT-server-2.0/share/xcat/netboot/centos/compute.pkglist
@@ -0,0 +1,6 @@
+bash 
+dhclient 
+kernel 
+openssh-server 
+openssh-clients
+busybox-anaconda
diff --git a/xCAT-server-2.0/share/xcat/netboot/centos/genimage b/xCAT-server-2.0/share/xcat/netboot/centos/genimage
new file mode 100755
index 000000000..3fbd5b9d5
--- /dev/null
+++ b/xCAT-server-2.0/share/xcat/netboot/centos/genimage
@@ -0,0 +1,318 @@
+#!/usr/bin/env perl
+use File::Basename;
+use File::Path;
+use File::Copy;
+use File::Find;
+use Getopt::Long;
+Getopt::Long::Configure("bundling");
+Getopt::Long::Configure("pass_through");
+
+my $prinic; #TODO be flexible on node primary nic
+my $othernics; #TODO be flexible on node primary nic
+my $netdriver;
+my $arch = `uname -m`;
+chomp($arch);
+my %libhash;
+my @filestoadd;
+my $profile;
+my $osver;
+my $pathtofiles=dirname($0);
+GetOptions(
+   #'a=s' => \$architecture,
+   'p=s' => \$profile,
+   'o=s' => \$osver,
+   'n=s' => \$netdriver,
+   'i=s' => \$prinic,
+   'r=s' => \$othernics
+);
+unless ($osver and $profile and $netdriver and $prinic) {
+   print 'Usage: genimage -i <nodebootif> -n <nodenetdrivers> [-r <otherifaces>] -o <OSVER> -p <PROFILE>'."\n";
+   print "Examples:\n";
+   print " genimage -i eth0 -n tg3 -o centos5.1 -p compute\n";
+   print " genimage -i eth0 -r eth1,eth2 -n tg3,bnx2 -o centos5.1 -p compute\n";
+   exit 1;
+}
+my @ndrivers;
+foreach (split /,/,$netdriver) {
+   unless (/\.ko$/) {
+      s/$/.ko/;
+   }
+   if (/^$/) {
+      next;
+   }
+   push @ndrivers,$_;
+}
+
+my $installroot = "/install";
+my $srcdir = "$installroot/$osver/$arch";
+unless ( -d $srcdir."/repodata" ) {
+   print "Need $installroot/$osver/$arch/repodata available from a system that has ran copycds on $osver $arch";
+   exit 1;
+}
+my $yumconfig;
+open($yumconfig,">","/tmp/genimage.$$.yum.conf");
+print $yumconfig "[$osver-$arch]\nname=$osver-$arch\nbaseurl=file://$srcdir\ngpgpcheck=0\n";
+close($yumconfig);
+my $yumcmd = "yum -y -c /tmp/genimage.$$.yum.conf --installroot=$installroot/netboot/$osver/$arch/$profile/rootimg/ --disablerepo=* --enablerepo=$osver-$arch install ";
+mkpath("$installroot/netboot/$osver/$arch/$profile/rootimg/var/lib/yum");
+my $pkglist;
+if (-r "$pathtofiles/$profile.$osver.$arch.pkglist") {
+   $pkglist = "$pathtofiles/$profile.$osver.$arch.pkglist";
+} elsif (-r "$pathtofiles/$profile.$arch.pkglist") {
+   $pkglist = "$pathtofiles/$profile.$arch.pkglist";
+} elsif (-r "$pathtofiles/$profile.$osver.pkglist") {
+   $pkglist = "$pathtofiles/$profile.$osver.pkglist";
+} elsif (-r "$pathtofiles/$profile.$arch.pkglist") {
+   $pkglist = "$pathtofiles/$profile.pkglist";
+} else {
+   print "Unable to find package list for $profile!";
+   return 1;
+}
+open($yumconfig,"<","$pkglist");
+while (<$yumconfig>) {
+   chomp;
+   $yumcmd .= $_ . " ";
+}
+$yumcmd =~ s/ $/\n/;
+my $rc = system($yumcmd);
+if ($rc) { 
+   print "yum invocation failed\n";
+   exit 1;
+}
+mkinitrd();
+postscripts(); #run 'postscripts'
+unlink "/tmp/genimage.$$.yum.conf";
+
+sub getlibs {
+	my $file = shift;
+	my $liblist = `chroot $installroot/netboot/$osver/$arch/$profile/rootimg ldd $file`;
+	my @libs = split/\n/,$liblist;
+	my @return;
+	foreach (@libs) {
+      unless (/=>/) {
+         (my $wjnk, my $lib,my $jnk) = split /\s+/,$_,3;
+         $lib =~ s/^\///;
+         $libhash{$lib}=1;
+         next;
+      }
+		(my $temp1,my $temp2) = split />/,$_,2;
+		(my $whitespace,$temp1,$temp2) = split /\s+/,$temp2,4;
+		unless ($temp1 =~ /\//) {
+			next;
+		}
+      $temp1 =~ s/^\///;
+		$libhash{$temp1}=1;
+   }
+}
+
+sub mkinitrd {
+	mkpath("/tmp/xcatinitrd.$$/bin");
+	symlink("bin","/tmp/xcatinitrd.$$/sbin");
+	mkpath("/tmp/xcatinitrd.$$/usr/bin");
+	mkpath("/tmp/xcatinitrd.$$/usr/sbin");
+	mkpath("/tmp/xcatinitrd.$$/usr/lib");
+	mkpath("/tmp/xcatinitrd.$$/usr/lib64");
+	mkpath("/tmp/xcatinitrd.$$/lib/firmware");
+	mkpath("/tmp/xcatinitrd.$$/lib64/firmware");
+	mkpath("/tmp/xcatinitrd.$$/proc");
+	mkpath("/tmp/xcatinitrd.$$/sys");
+	mkpath("/tmp/xcatinitrd.$$/dev/mapper");
+	mkpath("/tmp/xcatinitrd.$$/sysroot");
+	mkpath("/tmp/xcatinitrd.$$/etc/ld.so.conf.d");
+	mkpath("/tmp/xcatinitrd.$$/var/lib/dhclient");
+	my $inifile;
+	open($inifile,">","/tmp/xcatinitrd.$$/init");
+	print $inifile "#!/sbin/busybox.anaconda sh\n";
+	print $inifile "busybox.anaconda mount -t proc /proc /proc\n";
+	print $inifile "busybox.anaconda --install\n";
+	print $inifile "mount -t sysfs /sys /sys\n";
+   print $inifile "mount -o mode=0755 -t tmpfs /dev /dev\n";
+   print $inifile "mkdir /dev/pts\n";
+   print $inifile "mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts\n";
+   print $inifile "mkdir /dev/shm\n";
+   print $inifile "mkdir /dev/mapper\n";
+   print $inifile "mknod /dev/null c 1 3\n";
+   print $inifile "mknod /dev/zero c 1 5\n";
+   print $inifile "mknod /dev/systty c 4 0\n";
+   print $inifile "mknod /dev/tty c 5 0\n";
+   print $inifile "mknod /dev/console c 5 1\n";
+   print $inifile "mknod /dev/ptmx c 5 2\n";
+   print $inifile "mknod /dev/rtc c 10 135\n";
+   print $inifile "mknod /dev/tty0 c 4 0\n";
+   print $inifile "mknod /dev/tty1 c 4 1\n";
+   print $inifile "mknod /dev/tty2 c 4 2\n";
+   print $inifile "mknod /dev/tty3 c 4 3\n";
+   print $inifile "mknod /dev/tty4 c 4 4\n";
+   print $inifile "mknod /dev/tty5 c 4 5\n";
+   print $inifile "mknod /dev/tty6 c 4 6\n";
+   print $inifile "mknod /dev/tty7 c 4 7\n";
+   print $inifile "mknod /dev/tty8 c 4 8\n";
+   print $inifile "mknod /dev/tty9 c 4 9\n";
+   print $inifile "mknod /dev/tty10 c 4 10\n";
+   print $inifile "mknod /dev/tty11 c 4 11\n";
+   print $inifile "mknod /dev/tty12 c 4 12\n";
+   print $inifile "mknod /dev/ttyS0 c 4 64\n";
+   print $inifile "mknod /dev/ttyS1 c 4 65\n";
+   print $inifile "mknod /dev/ttyS2 c 4 66\n";
+   print $inifile "mknod /dev/ttyS3 c 4 67\n";
+   foreach (@ndrivers) {
+      print $inifile "insmod /lib/$_\n";
+   }
+   print $inifile "netstart\n";
+   print $inifile "cd /\n";
+   print $inifile "for i in `cat /proc/cmdline`; do\n";
+   print $inifile "   KEY=`echo \$i |awk -F= '{print \$1}'`\n";
+   print $inifile "   if [ \"\$KEY\" == 'imgurl' ]; then\n";
+   print $inifile "      VALUE=`echo \$i |awk -F= '{print \$2}'`\n";
+   print $inifile "      if [ \"http\" == \"`echo \$VALUE|awk -F: '{print \$1}'`\" ]; then\n";
+   print $inifile "        wget \$VALUE\n";
+   print $inifile "     fi\n";
+   print $inifile "   fi\n";
+   print $inifile "done\n";
+   print $inifile "if [ -r /rootimg.sfs ]; then\n";
+   print $inifile "  echo Setting up squashfs with ram overlay\n";
+   print $inifile "  mknod /dev/loop0 b 7 0\n";
+   print $inifile "  mkdir -p /ro\n";
+   print $inifile "  mkdir -p /rw\n";
+   print $inifile "  mount -t squashfs /rootimg.sfs /ro\n";
+   print $inifile "  mount -t tmpfs rw /rw\n";
+   print $inifile "  mount -t aufs -o dirs=/rw:/ro mergedroot  /sysroot\n";
+   print $inifile "elif [ -r /rootimg.gz ]; then\n";
+   print $inifile "  mount -t tmpfs rootfs /sysroot\n";
+   print $inifile "  cd /sysroot\n";
+   print $inifile "  echo -n \"Extracting root filesystem:\"\n";
+   print $inifile "  zcat /rootimg.gz |cpio -idum\n";
+   print $inifile "  echo Done";
+   print $inifile "else\n";
+   print $inifile "  echo -n Failed to download image, panicing in 5...\n";
+   print $inifile "  for i in 4 3 2 1 0; do\n";
+   print $inifile "    /bin/sleep 1\n";
+   print $inifile "    echo -n \$i...\n";
+   print $inifile "  done\n";
+   print $inifile "  echo\n";
+   print $inifile "  exit\n";
+   print $inifile "fi\n";
+   print $inifile "cd /\n";
+   print $inifile "cp /var/lib/dhclient/dhclient.leases /sysroot/dev/.dhclient-eth0.leases\n";
+   print $inifile "mknod /sysroot/dev/console c 5 1\n";
+   print $inifile "exec switch_root -c /dev/console /sysroot /sbin/init\n";
+   close($inifile);
+   open($inifile,">"."/tmp/xcatinitrd.$$/bin/netstart");
+   print $inifile "#!/sbin/nash\n";
+   print $inifile "network --device eth0 --bootproto dhcp\n";
+   close($inifile);
+	chmod(0755,"/tmp/xcatinitrd.$$/init");
+	chmod(0755,"/tmp/xcatinitrd.$$/bin/netstart");
+   @filestoadd=();
+   foreach (@ndrivers) {
+      if (-f "$pathtofiles/$_") {
+         push @filestoadd,[$_,"lib/$_"];
+      }
+   }
+   foreach ("sbin/nash","sbin/busybox.anaconda","sbin/rmmod") {
+      getlibs($_);
+      push @filestoadd,$_;
+   }
+   push @filestoadd,keys %libhash;
+   find(\&isnetdriver, <$installroot/netboot/$osver/$arch/$profile/rootimg/lib/modules/*>);
+   foreach (@filestoadd) {
+      if (ref($_)) {
+         my $srcpath = "$installroot/netboot/$osver/$arch/$profile/rootimg/".$_->[0];
+         if (-f "$pathtofiles/".$_->[0]) {
+            $srcpath="$pathtofiles/".$_->[0];
+         }
+         copy($srcpath,"/tmp/xcatinitrd.$$/".$_->[1]);
+         chmod 0755,"/tmp/xcatinitrd.$$/".$_->[1];
+      } else {
+         my $srcpath = "$installroot/netboot/$osver/$arch/$profile/rootimg/$_";
+         if (-f "$pathtofiles/$_") {
+            $srcpatch = "$pathtofiles/$_";
+         }
+         copy("$srcpath","/tmp/xcatinitrd.$$/$_");
+         chmod 0755,"/tmp/xcatinitrd.$$/".$_;
+      }
+   }
+
+   #copy("$installroot/netboot/$osver/$arch/$profile/rootimg/lib/modules/*d","/tmp/xcatinitrd.$$/$_");
+   system("cd /tmp/xcatinitrd.$$;find .|cpio -H newc -o|gzip -9 -c - > $installroot/netboot/$osver/$arch/$profile/initrd.gz");
+   system("rm -rf /tmp/xcatinitrd.$$");
+
+}
+
+sub isnetdriver {
+   foreach (@ndrivers) {
+      if ($File::Find::name =~ /$_/) {
+         my $filetoadd = $File::Find::name;
+         $filetoadd =~ s!$installroot/netboot/$osver/$arch/$profile/rootimg/!!;
+         push @filestoadd,[$filetoadd,"lib/$_"];
+      }
+   }
+}
+      	
+
+
+
+
+
+
+sub postscripts { # TODO: customized postscripts
+   generic_post();
+   if (-d "$installroot/postscripts/hostkeys") {
+      for my $key (<$installroot/postscripts/hostkeys/*key>) {
+         copy ($key,"$installroot/netboot/$osver/$arch/$profile/rootimg/etc/ssh/");
+      }
+      chmod 0600,</$installroot/netboot/$osver/$arch/$profile/rootimg/etc/ssh/*key>;
+   }
+   if (-d "/$installroot/postscripts/.ssh") {
+      mkpath("/$installroot/netboot/$osver/$arch/$profile/rootimg/root/.ssh");
+      chmod(0700,"/$installroot/netboot/$osver/$arch/$profile/rootimg/root/.ssh/");
+      for my $file (</$installroot/postscripts/.ssh/*>) {
+         copy ($file,"/$installroot/netboot/$osver/$arch/$profile/rootimg/root/.ssh/");
+      }
+      chmod(0600,</$installroot/netboot/$osver/$arch/$profile/rootimg/root/.ssh/*>);
+   }
+}
+
+sub generic_post { #This function is meant to leave the image in a state approximating a normal install
+   my $cfgfile;
+   unlink("$installroot/netboot/$osver/$arch/$profile/rootimg/dev/null");
+   system("mknod $installroot/netboot/$osver/$arch/$profile/rootimg/dev/null c 1 3");
+   open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/fstab");
+   print $cfgfile "devpts  /dev/pts devpts   gid=5,mode=620 0 0\n";
+   print $cfgfile "tmpfs   /dev/shm tmpfs    defaults       0 0\n";
+   print $cfgfile "proc    /proc    proc     defaults       0 0\n";
+   print $cfgfile "sysfs   /sys     sysfs    defaults       0 0\n";
+   close($cfgfile);
+   open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/sysconfig/network");
+   print $cfgfile "NETWORKING=yes\n";
+   close($cfgfile);
+   open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/sysconfig/network-scripts/ifcfg-$prinic");
+   print $cfgfile "ONBOOT=yes\nBOOTPROTO=dhcp\nDEVICE=$prinic\n";
+   close($cfgfile);
+   foreach (split /,/,$othernics) {
+      if (/^$/) { next; }
+      open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/sysconfig/network-scripts/ifcfg-$_");
+      print $cfgfile "ONBOOT=yes\nBOOTPROTO=dhcp\nDEVICE=$_\n";
+      close($cfgfile);
+   }
+   open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/rc3.d/S60gettyset");
+   print $cfgfile "#!/bin/bash\n"; 
+   print $cfgfile "for i in `cat /proc/cmdline`; do\n"; 
+   print $cfgfile '  KEY=`echo $i|cut -d= -f 1`'."\n";
+   print $cfgfile "  if [ \"\$KEY\" == \"console\" ]; then\n";
+   print $cfgfile "    VALUE=`echo \$i | cut -d= -f 2`\n"; 
+   print $cfgfile "     COTTY=`echo \$VALUE|cut -d, -f 1`\n";
+   print $cfgfile "     COSPEED=`echo \$VALUE|cut -d, -f 2|cut -dn -f 1`\n";
+   print $cfgfile "     if echo \$VALUE | grep n8r; then\n";
+   print $cfgfile "        FLOWFLAG=\"-h\"\n";
+   print $cfgfile "     fi\n";
+   print $cfgfile "     echo xco:2345:respawn:/sbin/agetty \$FLOWFLAG \$COTTY \$COSPEED xterm >> /etc/inittab\n";
+   print $cfgfile "     init q\n";
+   print $cfgfile "  fi\n";
+   print $cfgfile "done\n";
+   close($cfgfile);
+   chmod(0755,"$installroot/netboot/$osver/$arch/$profile/rootimg/etc/rc3.d/S60gettyset");
+   #link("$installroot/netboot/$osver/$arch/$profile/rootimg/sbin/init","$installroot/netboot/$osver/$arch/$profile/rootimg/init");
+   
+   rename(<$installroot/netboot/$osver/$arch/$profile/rootimg/boot/vmlinuz*>,"$installroot/netboot/$osver/$arch/$profile/kernel");
+}