diff --git a/docs/source/guides/admin-guides/references/man1/packimage.1.rst b/docs/source/guides/admin-guides/references/man1/packimage.1.rst
index 13510d4b1..d0520af54 100644
--- a/docs/source/guides/admin-guides/references/man1/packimage.1.rst
+++ b/docs/source/guides/admin-guides/references/man1/packimage.1.rst
@@ -62,7 +62,7 @@ OPTIONS
 
 \ **-a**\           Architecture (ppc64,x86_64,etc)
 
-\ **-m**\           Method (cpio,txc,squashfs, default is cpio)
+\ **-m**\           Archive Method (cpio,tar,squashfs, default is cpio)
 
 
 ************
diff --git a/xCAT-client/pods/man1/packimage.1.pod b/xCAT-client/pods/man1/packimage.1.pod
index c2f8bdc5c..0fa78542c 100644
--- a/xCAT-client/pods/man1/packimage.1.pod
+++ b/xCAT-client/pods/man1/packimage.1.pod
@@ -36,7 +36,7 @@ B<-p>          Profile (compute,service)
 
 B<-a>          Architecture (ppc64,x86_64,etc)
 
-B<-m>          Method (cpio,txc,squashfs, default is cpio)
+B<-m>          Archive Method (cpio,tar,squashfs, default is cpio)
 
 
 =head1 RETURN VALUE
diff --git a/xCAT-server/lib/xcat/plugins/anaconda.pm b/xCAT-server/lib/xcat/plugins/anaconda.pm
index a9d00021e..bf8c45f7f 100644
--- a/xCAT-server/lib/xcat/plugins/anaconda.pm
+++ b/xCAT-server/lib/xcat/plugins/anaconda.pm
@@ -464,7 +464,7 @@ sub mknetboot
         $platform = xCAT_plugin::anaconda::getplatform($osver);
         my $suffix = 'gz';
         $suffix = 'sfs' if (-r "$rootimgdir/rootimg.sfs");
-        $suffix = 'txz' if (-r "$rootimgdir/rootimg.txz");
+        $suffix = 'tgz' if (-r "$rootimgdir/rootimg.tgz");
 
         # statelite images are not packed.
         if ($statelite) {
@@ -513,7 +513,7 @@ sub mknetboot
                     copy("$rootimgdir/initrd.gz", "$rootimgdir/initrd-stateless.gz");
                 }
             }
-            unless (-r "$rootimgdir/rootimg.gz" or -r "$rootimgdir/rootimg.txz" or -r "$rootimgdir/rootimg.sfs") {
+            unless (-r "$rootimgdir/rootimg.gz" or -r "$rootimgdir/rootimg.tgz" or -r "$rootimgdir/rootimg.sfs") {
                 $callback->({
                         error => ["No packed image for platform $osver, architecture $arch, and profile $profile found at $rootimgdir/rootimg.gz or $rootimgdir/rootimg.sfs on $myname, please run packimage (e.g.  packimage -o $osver -p $profile -a $arch"],
                         errorcode => [1] });
diff --git a/xCAT-server/lib/xcat/plugins/debian.pm b/xCAT-server/lib/xcat/plugins/debian.pm
index 0908de774..5d57bea30 100644
--- a/xCAT-server/lib/xcat/plugins/debian.pm
+++ b/xCAT-server/lib/xcat/plugins/debian.pm
@@ -1172,7 +1172,7 @@ sub mknetboot
         $platform = xCAT_plugin::debian::getplatform($osver);
         my $suffix = 'gz';
         $suffix = 'sfs' if (-r "$rootimgdir/rootimg.sfs");
-        $suffix = 'txz' if (-r "$rootimgdir/rootimg.txz");
+        $suffix = 'tgz' if (-r "$rootimgdir/rootimg.tgz");
 
         # statelite images are not packed.
         if ($statelite) {
@@ -1222,7 +1222,7 @@ sub mknetboot
                     copy("$rootimgdir/initrd.gz", "$rootimgdir/initrd-stateless.gz");
                 }
             }
-            unless (-r "$rootimgdir/rootimg.gz" or -r "$rootimgdir/rootimg.txz" or -r "$rootimgdir/rootimg.sfs") {
+            unless (-r "$rootimgdir/rootimg.gz" or -r "$rootimgdir/rootimg.tgz" or -r "$rootimgdir/rootimg.sfs") {
                 $callback->({
                         error => ["No packed image for platform $osver, architecture $arch, and profile $profile, please run packimage (e.g.  packimage -o $osver -p $profile -a $arch"],
                         errorcode => [1] });
diff --git a/xCAT-server/lib/xcat/plugins/packimage.pm b/xCAT-server/lib/xcat/plugins/packimage.pm
index 3ed8d5f35..296ede256 100755
--- a/xCAT-server/lib/xcat/plugins/packimage.pm
+++ b/xCAT-server/lib/xcat/plugins/packimage.pm
@@ -429,7 +429,7 @@ sub process_request {
             $compress = "pigz";
         }
         if (!$exlistloc) {
-            $excludestr = "find . -xdev |cpio -H newc -o | $compress -c - > ../rootimg.gz";
+            $excludestr = "find . -xdev -print0 | cpio -H newc -o -0 | $compress -c - > ../rootimg.gz";
         } else {
             chdir("$rootimg_dir");
             system("$excludestr >> $xcat_packimg_tmpfile");
@@ -439,22 +439,29 @@ sub process_request {
             $excludestr = "cat $xcat_packimg_tmpfile|cpio -H newc -o | $compress -c - > ../rootimg.gz";
         }
         $oldmask = umask 0077;
-    } elsif ($method =~ /txc/) {
-        my $isxz = system("bash -c 'type -p xz' >/dev/null 2>&1");
-        unless ($isxz == 0) {
-            $callback->({ error => ["Command xz does not exist, please make sure it works."] });
-            return 1;
+    } elsif ($method =~ /tar/) {
+        my $compress = "gzip";
+
+        #use "pigz" as the compress tool instead of gzip if "pigz" exist
+        my $ispigz = system("bash -c 'type -p pigz' >/dev/null 2>&1");
+        if ($ispigz == 0) {
+            $compress = "pigz";
+        } else {
+            my $isgzip = system("bash -c 'type -p gzip' >/dev/null 2>&1");
+            unless ($isgzip == 0) {
+                $callback->({ error => ["Command gzip does not exist, please make sure it works."] });
+                return 1;
+            }
         }
-        $callback->({ info => ["It will take several minutes to complete. So please wait for several minutes, then the other operations could be done. Otherwise, the other operation will fail."] });
         if (!$exlistloc) {
-            $excludestr = "find . -xdev | tar --selinux --xattrs-include='*' -T - -Jcvf ../rootimg.txz";
+            $excludestr = "find . -xdev -print0 | tar --selinux --xattrs-include='*' --null -T - -c | $compress -c - > ../rootimg.tgz";
         } else {
             chdir("$rootimg_dir");
             system("$excludestr >> $xcat_packimg_tmpfile");
             if ($includestr) {
                 system("$includestr >> $xcat_packimg_tmpfile");
             }
-            $excludestr = "cat $xcat_packimg_tmpfile| tar --selinux --xattrs-include='*' -T - -Jcvf ../rootimg.txz";
+            $excludestr = "cat $xcat_packimg_tmpfile| tar --selinux --xattrs-include='*' -T - -c | $compress -c - > ../rootimg.tgz";
         }
         $oldmask = umask 0077;
     } elsif ($method =~ /squashfs/) {
@@ -470,7 +477,8 @@ sub process_request {
         $callback->({ error => ["Invalid method '$method' requested"], errorcode => [1] });
     }
     chdir("$rootimg_dir");
-    `$excludestr`;
+    my $outputmsg = `$excludestr`;
+    $callback->({ info => ["$outputmsg"] });
     if ($method =~ /cpio/) {
         chmod 0644, "$destdir/rootimg.gz";
         if ($dotorrent) {
@@ -482,8 +490,8 @@ sub process_request {
             chdir($currdir);
         }
         umask $oldmask;
-    } elsif ($method =~ /txc/) {
-        chmod 0644, "$destdir/rootimg.txz";
+    } elsif ($method =~ /tar/) {
+        chmod 0644, "$destdir/rootimg.tgz";
         umask $oldmask;
     } elsif ($method =~ /squashfs/) {
         my $flags;
diff --git a/xCAT-server/lib/xcat/plugins/sles.pm b/xCAT-server/lib/xcat/plugins/sles.pm
index 3b26ccdb9..a833353ea 100644
--- a/xCAT-server/lib/xcat/plugins/sles.pm
+++ b/xCAT-server/lib/xcat/plugins/sles.pm
@@ -329,7 +329,7 @@ sub mknetboot
 
         my $suffix = 'gz';
         $suffix = 'sfs' if (-r "$rootimgdir/rootimg.sfs");
-        $suffix = 'txz' if (-r "$rootimgdir/rootimg.txz");
+        $suffix = 'tgz' if (-r "$rootimgdir/rootimg.tgz");
 
         if ($statelite) {
             unless (-r "$rootimgdir/kernel") {
@@ -381,7 +381,7 @@ sub mknetboot
                 }
             }
 
-            unless (-r "$rootimgdir/rootimg.gz" or -r "$rootimgdir/rootimg.txz" or -r "$rootimgdir/rootimg.sfs") {
+            unless (-r "$rootimgdir/rootimg.gz" or -r "$rootimgdir/rootimg.tgz" or -r "$rootimgdir/rootimg.sfs") {
                 $callback->({
                         error => [qq{No packed image for platform $osver, architecture $arch, and profile $profile, please run packimage before nodeset}],
                         errorcode => [1]
diff --git a/xCAT-server/share/xcat/netboot/rh/compute.pkglist b/xCAT-server/share/xcat/netboot/rh/compute.pkglist
index 30d4e4feb..2824c79fc 100644
--- a/xCAT-server/share/xcat/netboot/rh/compute.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/compute.pkglist
@@ -12,3 +12,5 @@ ntp
 sysklogd
 rpm
 rsync
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/rh/compute.rhels6.pkglist b/xCAT-server/share/xcat/netboot/rh/compute.rhels6.pkglist
index 555ec63cc..e2389d3de 100644
--- a/xCAT-server/share/xcat/netboot/rh/compute.rhels6.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/compute.rhels6.pkglist
@@ -13,3 +13,5 @@ rpm
 rsync
 rsyslog
 e2fsprogs
+gzip
+tar
diff --git a/xCAT-server/share/xcat/netboot/rh/compute.rhels6.ppc64.pkglist b/xCAT-server/share/xcat/netboot/rh/compute.rhels6.ppc64.pkglist
index 6ad7101c8..fbaf36a2a 100644
--- a/xCAT-server/share/xcat/netboot/rh/compute.rhels6.ppc64.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/compute.rhels6.ppc64.pkglist
@@ -24,4 +24,5 @@ lsvpd
 irqbalance
 procps
 parted
-xz
+gzip
+tar
diff --git a/xCAT-server/share/xcat/netboot/rh/compute.rhels6.x86_64.pkglist b/xCAT-server/share/xcat/netboot/rh/compute.rhels6.x86_64.pkglist
index cf0538893..ae873e99f 100644
--- a/xCAT-server/share/xcat/netboot/rh/compute.rhels6.x86_64.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/compute.rhels6.x86_64.pkglist
@@ -20,4 +20,5 @@ rsync
 rsyslog
 e2fsprogs
 parted
-xz
+gzip
+tar
diff --git a/xCAT-server/share/xcat/netboot/rh/compute.rhels7.ppc64.pkglist b/xCAT-server/share/xcat/netboot/rh/compute.rhels7.ppc64.pkglist
index 7f576221b..bb9af2ce9 100644
--- a/xCAT-server/share/xcat/netboot/rh/compute.rhels7.ppc64.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/compute.rhels7.ppc64.pkglist
@@ -24,4 +24,5 @@ irqbalance
 procps-ng
 parted
 net-tools
-xz
+gzip
+tar
diff --git a/xCAT-server/share/xcat/netboot/rh/compute.rhels7.x86_64.pkglist b/xCAT-server/share/xcat/netboot/rh/compute.rhels7.x86_64.pkglist
index 409531cdf..3c54123a8 100644
--- a/xCAT-server/share/xcat/netboot/rh/compute.rhels7.x86_64.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/compute.rhels7.x86_64.pkglist
@@ -19,4 +19,5 @@ rsyslog
 e2fsprogs
 parted
 net-tools
-xz
+gzip
+tar
diff --git a/xCAT-server/share/xcat/netboot/rh/dracut/install.netboot b/xCAT-server/share/xcat/netboot/rh/dracut/install.netboot
index 706a14d12..f14ffa1c0 100755
--- a/xCAT-server/share/xcat/netboot/rh/dracut/install.netboot
+++ b/xCAT-server/share/xcat/netboot/rh/dracut/install.netboot
@@ -1,6 +1,6 @@
 #!/bin/sh
 echo $drivers
-dracut_install wget tar xz cpio gzip dash modprobe touch echo cut wc xz
+dracut_install wget tar cpio gzip dash modprobe touch echo cut wc
 dracut_install -o ctorrent
 dracut_install grep ifconfig hostname awk egrep grep dirname expr
 dracut_install mount.nfs
diff --git a/xCAT-server/share/xcat/netboot/rh/dracut/xcatroot b/xCAT-server/share/xcat/netboot/rh/dracut/xcatroot
index 71e63af69..688d7f772 100755
--- a/xCAT-server/share/xcat/netboot/rh/dracut/xcatroot
+++ b/xCAT-server/share/xcat/netboot/rh/dracut/xcatroot
@@ -87,7 +87,7 @@ elif [ -r /rootimg.gz ]; then
   $NEWROOT/etc/init.d/localdisk
   [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "Done...."
   echo Done
-elif [ -r /rootimg.txz ]; then
+elif [ -r /rootimg.tgz ]; then
   echo Setting up RAM-root tmpfs.
   if [ -z $rootlimit ];then
     mount -t tmpfs -o mode=755 rootfs $NEWROOT
@@ -97,7 +97,7 @@ elif [ -r /rootimg.txz ]; then
 
   cd $NEWROOT
   echo -n "Extracting root filesystem:"
-  tar -Jxvf /rootimg.txz
+  tar --selinux --xattrs-include='*' -zxvf /rootimg.tgz
   $NEWROOT/etc/init.d/localdisk
   echo Done
 elif [ -r /rootimg-statelite.gz ]; then
diff --git a/xCAT-server/share/xcat/netboot/rh/dracut_033/install.netboot b/xCAT-server/share/xcat/netboot/rh/dracut_033/install.netboot
index 9bae9d704..e1227868b 100755
--- a/xCAT-server/share/xcat/netboot/rh/dracut_033/install.netboot
+++ b/xCAT-server/share/xcat/netboot/rh/dracut_033/install.netboot
@@ -1,6 +1,6 @@
 #!/bin/sh
 echo $drivers
-dracut_install wget cpio gzip modprobe touch echo cut wc xz
+dracut_install wget tar cpio gzip modprobe touch echo cut wc
 dracut_install grep ifconfig hostname awk egrep grep dirname expr
 dracut_install mount.nfs
 dracut_install parted mke2fs bc mkswap swapon chmod
diff --git a/xCAT-server/share/xcat/netboot/rh/dracut_033/xcatroot b/xCAT-server/share/xcat/netboot/rh/dracut_033/xcatroot
index 2344938dc..328068a32 100755
--- a/xCAT-server/share/xcat/netboot/rh/dracut_033/xcatroot
+++ b/xCAT-server/share/xcat/netboot/rh/dracut_033/xcatroot
@@ -89,8 +89,8 @@ elif [ -r /rootimg.gz ]; then
   $NEWROOT/etc/init.d/localdisk
   [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "Done...."
   echo Done
-elif [ -r /rootimg.txz ]; then
-  [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "rootimg.txz downloaded,setting up RAM-root tmpfs...."
+elif [ -r /rootimg.tgz ]; then
+  [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "rootimg.tgz downloaded,setting up RAM-root tmpfs...."
   echo Setting up RAM-root tmpfs.
   if [ -z $rootlimit ];then
     mount -t tmpfs -o mode=755 rootfs $NEWROOT
@@ -101,7 +101,7 @@ elif [ -r /rootimg.txz ]; then
   cd $NEWROOT
   [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "Extracting root filesystem:"
   echo -n "Extracting root filesystem:"
-  tar -Jxvf /rootimg.txz
+  tar --selinux --xattrs-include='*' -zxvf /rootimg.tgz
   $NEWROOT/etc/init.d/localdisk
   [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "Done...."
   echo Done
diff --git a/xCAT-server/share/xcat/netboot/rh/genimage b/xCAT-server/share/xcat/netboot/rh/genimage
index 0c42cb1f5..9174f59a4 100755
--- a/xCAT-server/share/xcat/netboot/rh/genimage
+++ b/xCAT-server/share/xcat/netboot/rh/genimage
@@ -1612,7 +1612,7 @@ EOMS
     print $inifile "  zcat /rootimg.gz |cpio -idum\n";
     print $inifile "  fi\n";
     print $inifile "  echo Done\n";
-    print $inifile "elif [ -r /rootimg.txz ]; then\n";
+    print $inifile "elif [ -r /rootimg.tgz ]; then\n";
     print $inifile "    echo Setting up RAM-root tmpfs.\n";
 
     if ($rootlimit) {
@@ -1622,7 +1622,7 @@ EOMS
     }
     print $inifile "    cd \$NEWROOT\n";
     print $inifile "    echo -n \"Extracting root filesystem:\"\n";
-    print $inifile "    tar -Jxvf /rootimg.txz\n";
+    print $inifile "    tar --selinux --xattrs-include='*' -zxvf /rootimg.tgz\n";
     print $inifile "    echo Done\n";
     print $inifile "else\n";
     print $inifile "  echo -n Failed to download image, panicing in 5...\n";
@@ -1699,7 +1699,7 @@ EOMS
     }
 
     # add rsync for statelite
-    foreach ("bin/cpio", "sbin/nash", "sbin/busybox.anaconda", "sbin/rmmod", "bin/bash", "usr/sbin/chroot", "sbin/mount.nfs", "usr/bin/rsync", "usr/bin/wc", "usr/bin/xz") {
+    foreach ("bin/cpio", "sbin/nash", "sbin/busybox.anaconda", "sbin/rmmod", "bin/bash", "usr/sbin/chroot", "sbin/mount.nfs", "usr/bin/rsync", "usr/bin/wc", "usr/bin/gzip", "usr/bin/tar") {
         getlibs($_);
         push @filestoadd, $_;
     }
diff --git a/xCAT-server/share/xcat/netboot/sles/compute.pkglist b/xCAT-server/share/xcat/netboot/sles/compute.pkglist
index 05bfaa5b3..cc5a5fd87 100644
--- a/xCAT-server/share/xcat/netboot/sles/compute.pkglist
+++ b/xCAT-server/share/xcat/netboot/sles/compute.pkglist
@@ -11,3 +11,5 @@ wget
 rsync
 timezone
 ntp
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/sles/compute.sles11.pkglist b/xCAT-server/share/xcat/netboot/sles/compute.sles11.pkglist
index a09fe48d1..e284622f1 100644
--- a/xCAT-server/share/xcat/netboot/sles/compute.sles11.pkglist
+++ b/xCAT-server/share/xcat/netboot/sles/compute.sles11.pkglist
@@ -17,3 +17,5 @@ rsync
 timezone
 bc
 ntp
+gzip
+tar
diff --git a/xCAT-server/share/xcat/netboot/sles/compute.sles11.ppc64.pkglist b/xCAT-server/share/xcat/netboot/sles/compute.sles11.ppc64.pkglist
index a1fbff957..26e735587 100644
--- a/xCAT-server/share/xcat/netboot/sles/compute.sles11.ppc64.pkglist
+++ b/xCAT-server/share/xcat/netboot/sles/compute.sles11.ppc64.pkglist
@@ -19,3 +19,5 @@ lsvpd
 irqbalance
 procps
 ntp
+gzip
+tar
diff --git a/xCAT-server/share/xcat/netboot/sles/compute.sles12.ppc64le.pkglist b/xCAT-server/share/xcat/netboot/sles/compute.sles12.ppc64le.pkglist
index d0b4c3a0e..1eebf1414 100644
--- a/xCAT-server/share/xcat/netboot/sles/compute.sles12.ppc64le.pkglist
+++ b/xCAT-server/share/xcat/netboot/sles/compute.sles12.ppc64le.pkglist
@@ -41,4 +41,3 @@ udev
 kernel-default
 kernel-firmware
 adaptec-firmware
-xz
diff --git a/xCAT-server/share/xcat/netboot/sles/compute.sles12.x86_64.pkglist b/xCAT-server/share/xcat/netboot/sles/compute.sles12.x86_64.pkglist
index d0b4c3a0e..1eebf1414 100644
--- a/xCAT-server/share/xcat/netboot/sles/compute.sles12.x86_64.pkglist
+++ b/xCAT-server/share/xcat/netboot/sles/compute.sles12.x86_64.pkglist
@@ -41,4 +41,3 @@ udev
 kernel-default
 kernel-firmware
 adaptec-firmware
-xz
diff --git a/xCAT-server/share/xcat/netboot/sles/dracut_033/install.netboot b/xCAT-server/share/xcat/netboot/sles/dracut_033/install.netboot
index 9bae9d704..e1227868b 100755
--- a/xCAT-server/share/xcat/netboot/sles/dracut_033/install.netboot
+++ b/xCAT-server/share/xcat/netboot/sles/dracut_033/install.netboot
@@ -1,6 +1,6 @@
 #!/bin/sh
 echo $drivers
-dracut_install wget cpio gzip modprobe touch echo cut wc xz
+dracut_install wget tar cpio gzip modprobe touch echo cut wc
 dracut_install grep ifconfig hostname awk egrep grep dirname expr
 dracut_install mount.nfs
 dracut_install parted mke2fs bc mkswap swapon chmod
diff --git a/xCAT-server/share/xcat/netboot/sles/dracut_033/xcatroot b/xCAT-server/share/xcat/netboot/sles/dracut_033/xcatroot
index c9775a412..91b6a3aa4 100755
--- a/xCAT-server/share/xcat/netboot/sles/dracut_033/xcatroot
+++ b/xCAT-server/share/xcat/netboot/sles/dracut_033/xcatroot
@@ -87,8 +87,8 @@ elif [ -r /rootimg.gz ]; then
   $NEWROOT/etc/init.d/localdisk
   [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "Done...."
   echo Done
-elif [ -r /rootimg.txz ]; then
-  [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "rootimg.txz downloaded,setting up RAM-root tmpfs...."
+elif [ -r /rootimg.tgz ]; then
+  [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "rootimg.tgz downloaded,setting up RAM-root tmpfs...."
   echo Setting up RAM-root tmpfs.
   if [ -z $rootlimit ];then
     mount -t tmpfs -o mode=755 rootfs $NEWROOT
@@ -99,7 +99,7 @@ elif [ -r /rootimg.txz ]; then
   cd $NEWROOT
   [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "Extracting root filesystem:"
   echo -n "Extracting root filesystem:"
-  tar -Jxvf /rootimg.txz
+  tar --selinux --xattrs-include='*' -zxvf /rootimg.tgz
   $NEWROOT/etc/init.d/localdisk
   [ "$xcatdebugmode" > "0" ] && logger -t xcat -p debug "Done...."
   echo Done
diff --git a/xCAT-server/share/xcat/netboot/sles/genimage b/xCAT-server/share/xcat/netboot/sles/genimage
index ebc09e3de..5b894e37a 100755
--- a/xCAT-server/share/xcat/netboot/sles/genimage
+++ b/xCAT-server/share/xcat/netboot/sles/genimage
@@ -1639,7 +1639,7 @@ EOMS
     print $inifile "  zcat /rootimg.gz |cpio -idum\n";
     print $inifile "  fi\n";
     print $inifile "  echo Done\n";
-    print $inifile "elif [ -r /rootimg.txz ]; then\n";
+    print $inifile "elif [ -r /rootimg.tgz ]; then\n";
     print $inifile "    echo Setting up RAM-root tmpfs.\n";
 
     if ($rootlimit) {
@@ -1649,7 +1649,7 @@ EOMS
     }
     print $inifile "    cd \$NEWROOT\n";
     print $inifile "    echo -n \"Extracting root filesystem:\"\n";
-    print $inifile "    tar -Jxvf /rootimg.txz\n";
+    print $inifile "    tar --selinux --xattrs-include='*' -zxvf /rootimg.tgz\n";
     print $inifile "    echo Done\n";
     print $inifile "else\n";
     print $inifile "  echo -n Failed to download image, panicing in 5...\n";
@@ -1758,7 +1758,7 @@ EOMS
         }
     }
     if ($mode eq "statelite") {
-        foreach ("sbin/ifconfig", "usr/bin/clear", "usr/bin/touch", "bin/hostname", "usr/bin/egrep", "bin/ln", "bin/ls", "usr/bin/dirname", "usr/bin/expr", "usr/bin/chroot", "usr/bin/grep", "bin/cpio", "bin/sleep", "bin/mount", "bin/umount", "sbin/dhcpcd", "bin/bash", "sbin/insmod", "bin/mkdir", "bin/mknod", "sbin/ip", "bin/cat", "usr/bin/awk", "usr/bin/wget", "bin/cp", "usr/bin/cpio", "usr/bin/zcat", "usr/bin/gzip", "lib/mkinitrd/bin/run-init", "usr/bin/uniq", "usr/bin/sed", "usr/bin/wc", "bin/sed", "sbin/udevd", "usr/bin/readlink", "usr/sbin/parted", "sbin/mke2fs", "sbin/mkswap", "sbin/swapon", "bin/chmod", "usr/bin/bc", "usr/bin/xz") {
+        foreach ("sbin/ifconfig", "usr/bin/clear", "usr/bin/touch", "bin/hostname", "usr/bin/egrep", "bin/ln", "bin/ls", "usr/bin/dirname", "usr/bin/expr", "usr/bin/chroot", "usr/bin/grep", "bin/cpio", "bin/sleep", "bin/mount", "bin/umount", "sbin/dhcpcd", "bin/bash", "sbin/insmod", "bin/mkdir", "bin/mknod", "sbin/ip", "bin/cat", "usr/bin/awk", "usr/bin/wget", "bin/cp", "usr/bin/cpio", "usr/bin/zcat", "usr/bin/gzip", "lib/mkinitrd/bin/run-init", "usr/bin/uniq", "usr/bin/sed", "usr/bin/wc", "bin/sed", "sbin/udevd", "usr/bin/readlink", "usr/sbin/parted", "sbin/mke2fs", "sbin/mkswap", "sbin/swapon", "bin/chmod", "usr/bin/bc", "usr/bin/gzip", "usr/bin/tar") {
             getlibs($_);
             push @filestoadd, $_;
         }
@@ -1770,7 +1770,7 @@ EOMS
         }
 
     } else {
-        foreach ("sbin/ifconfig", "usr/bin/clear", "usr/bin/touch", "usr/bin/grep", "usr/bin/egrep", "bin/cpio", "bin/sleep", "bin/mount", "sbin/dhcpcd", "bin/bash", "sbin/insmod", "bin/mkdir", "bin/mknod", "sbin/ip", "bin/cat", "usr/bin/awk", "usr/bin/wget", "bin/cp", "usr/bin/cpio", "usr/bin/zcat", "usr/bin/gzip", "lib/mkinitrd/bin/run-init", "usr/bin/uniq", "usr/bin/sed", "sbin/udevd", "usr/bin/readlink", "usr/bin/expr", "usr/sbin/parted", "sbin/mke2fs", "sbin/mkswap", "sbin/swapon", "bin/chmod", "usr/bin/bc", "usr/bin/xz") {
+        foreach ("sbin/ifconfig", "usr/bin/clear", "usr/bin/touch", "usr/bin/grep", "usr/bin/egrep", "bin/cpio", "bin/sleep", "bin/mount", "sbin/dhcpcd", "bin/bash", "sbin/insmod", "bin/mkdir", "bin/mknod", "sbin/ip", "bin/cat", "usr/bin/awk", "usr/bin/wget", "bin/cp", "usr/bin/cpio", "usr/bin/zcat", "usr/bin/gzip", "lib/mkinitrd/bin/run-init", "usr/bin/uniq", "usr/bin/sed", "sbin/udevd", "usr/bin/readlink", "usr/bin/expr", "usr/sbin/parted", "sbin/mke2fs", "sbin/mkswap", "sbin/swapon", "bin/chmod", "usr/bin/bc", "usr/bin/gzip", "usr/bin/tar") {
             getlibs($_);
             push @filestoadd, $_;
         }
@@ -2422,3 +2422,4 @@ sub usage {
     print " genimage -i eth0 -n tg3,bnx2 -o sles11 -p compute --permission 777\n";
     return 0;
 }
+
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.pkglist
index 617097381..c3839a534 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.pkglist
@@ -12,3 +12,5 @@ rsyslog
 rsync
 busybox-static
 gawk
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.4.ppc64el.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.4.ppc64el.pkglist
index 971deec45..730382c86 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.4.ppc64el.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.4.ppc64el.pkglist
@@ -13,4 +13,5 @@ rsync
 busybox-static
 gawk
 dnsutils
-xz-utils
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.4.x86_64.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.4.x86_64.pkglist
index 971deec45..730382c86 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.4.x86_64.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.4.x86_64.pkglist
@@ -13,4 +13,5 @@ rsync
 busybox-static
 gawk
 dnsutils
-xz-utils
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.pkglist
index c23ba181a..b1357ac5f 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu14.04.pkglist
@@ -12,3 +12,5 @@ rsyslog
 rsync
 busybox-static
 gawk
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.pkglist
index ebad2c260..d3e1da021 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.pkglist
@@ -12,3 +12,5 @@ rsyslog
 rsync
 busybox-static
 gawk
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.ppc64el.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.ppc64el.pkglist
index 07e8c4b1b..8276befc2 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.ppc64el.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.ppc64el.pkglist
@@ -14,4 +14,5 @@ rsync
 busybox-static
 gawk
 dnsutils
-xz-utils
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.x86_64.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.x86_64.pkglist
index 07e8c4b1b..8276befc2 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.x86_64.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu16.04.x86_64.pkglist
@@ -14,4 +14,5 @@ rsync
 busybox-static
 gawk
 dnsutils
-xz-utils
+tar
+gzip
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/dracut/install.netboot b/xCAT-server/share/xcat/netboot/ubuntu/dracut/install.netboot
index a16bd719e..10f1c7320 100755
--- a/xCAT-server/share/xcat/netboot/ubuntu/dracut/install.netboot
+++ b/xCAT-server/share/xcat/netboot/ubuntu/dracut/install.netboot
@@ -1,6 +1,6 @@
 #!/bin/sh
 echo $drivers
-dracut_install wget cpio gzip dash modprobe touch echo cut wc xz
+dracut_install wget tar cpio gzip dash modprobe touch echo cut wc
 dracut_install grep ifconfig hostname awk egrep grep dirname expr
 dracut_install mount.nfs
 inst "$moddir/xcatroot" "/sbin/xcatroot"
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/dracut/xcatroot b/xCAT-server/share/xcat/netboot/ubuntu/dracut/xcatroot
index 6d9a3cbd0..073ec1e4b 100755
--- a/xCAT-server/share/xcat/netboot/ubuntu/dracut/xcatroot
+++ b/xCAT-server/share/xcat/netboot/ubuntu/dracut/xcatroot
@@ -50,12 +50,12 @@ elif [ -r /rootimg.gz ]; then
     gzip -cd /rootimg.gz |cpio -idum
   fi
   echo Done
-elif [ -r /rootimg.txz ]; then
+elif [ -r /rootimg.tgz ]; then
   echo Setting up RAM-root tmpfs.
   mount -t tmpfs -o mode=755 rootfs $NEWROOT
   cd $NEWROOT
   echo -n "Extracting root filesystem:"
-  tar -Jxvf /rootimg.txz
+  tar --selinux --xattrs-include='*' -zxvf /rootimg.tgz
   echo Done
 elif [ -r /rootimg-statelite.gz ]; then
   echo Setting up RAM-root tmpfs for statelite mode.
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/genimage b/xCAT-server/share/xcat/netboot/ubuntu/genimage
index 2921543ba..870c13b73 100755
--- a/xCAT-server/share/xcat/netboot/ubuntu/genimage
+++ b/xCAT-server/share/xcat/netboot/ubuntu/genimage
@@ -1459,8 +1459,8 @@ EOMS
     print $inifile "    fi\n";
     print $inifile "    ([ \"\$xcatdebugmode\" = \"1\" ] || [ \"\$xcatdebugmode\" = \"2\" ]) && logger -t xcat -p debug \"Done...\"\n";
     print $inifile "    echo Done\n";
-    print $inifile "elif [ -r /rootimg.txz ]; then\n";
-    print $inifile "    ([ \"\$xcatdebugmode\" = \"1\" ] || [ \"\$xcatdebugmode\" = \"2\" ]) && logger -t xcat -p debug \"rootimg.txz downloaded,setting up RAM-root tmpfs...\"\n";
+    print $inifile "elif [ -r /rootimg.tgz ]; then\n";
+    print $inifile "    ([ \"\$xcatdebugmode\" = \"1\" ] || [ \"\$xcatdebugmode\" = \"2\" ]) && logger -t xcat -p debug \"rootimg.tgz downloaded,setting up RAM-root tmpfs...\"\n";
     print $inifile "    echo Setting up RAM-root tmpfs.\n";
 
     if ($rootlimit) {
@@ -1471,7 +1471,7 @@ EOMS
     print $inifile "    cd \$NEWROOT\n";
     print $inifile "    ([ \"\$xcatdebugmode\" = \"1\" ] || [ \"\$xcatdebugmode\" = \"2\" ]) && logger -t xcat -p debug \"Extracting root filesystem:\"\n";
     print $inifile "    echo -n \"Extracting root filesystem:\"\n";
-    print $inifile "    tar -Jxvf /rootimg.txz\n";
+    print $inifile "    tar --selinux --xattrs-include='*' -zxvf /rootimg.tgz\n";
     print $inifile "    ([ \"\$xcatdebugmode\" = \"1\" ] || [ \"\$xcatdebugmode\" = \"2\" ]) && logger -t xcat -p debug \"Done...\"\n";
     print $inifile "    echo Done\n";
     print $inifile "else\n";
@@ -1612,7 +1612,7 @@ EOMS
     }
 
     # add rsync for statelite
-    foreach ("usr/bin/dig", "bin/busybox", "bin/bash", "sbin/mount.nfs", "usr/bin/rsync", "sbin/insmod", "sbin/udevd", "sbin/udevadm", "sbin/modprobe", "sbin/blkid", "sbin/depmod", "usr/bin/wget", "usr/bin/xz") {
+    foreach ("usr/bin/dig", "bin/busybox", "bin/bash", "sbin/mount.nfs", "usr/bin/rsync", "sbin/insmod", "sbin/udevd", "sbin/udevadm", "sbin/modprobe", "sbin/blkid", "sbin/depmod", "usr/bin/wget", "usr/bin/gzip", "usr/bin/tar") {
         getlibs($_);
         push @filestoadd, $_;
     }