diff --git a/xCAT-server/share/xcat/install/ubuntu/compute.ubuntu18.04.ppc64el.pkglist b/xCAT-server/share/xcat/install/ubuntu/compute.ubuntu18.04.ppc64el.pkglist
index a2a01bc6e..80a145e6a 100644
--- a/xCAT-server/share/xcat/install/ubuntu/compute.ubuntu18.04.ppc64el.pkglist
+++ b/xCAT-server/share/xcat/install/ubuntu/compute.ubuntu18.04.ppc64el.pkglist
@@ -1,4 +1,5 @@
 bash
+ifupdown
 nfs-common
 openssl
 isc-dhcp-client
@@ -7,8 +8,6 @@ openssh-server
 openssh-client
 wget
 vim
-ntp
-ntpdate
 rsync
 busybox-static
 gawk
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu18.04.ppc64el.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu18.04.ppc64el.pkglist
index df556b887..583d62ad1 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu18.04.ppc64el.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu18.04.ppc64el.pkglist
@@ -1,4 +1,5 @@
 bash
+ifupdown
 nfs-common
 openssl
 isc-dhcp-client
@@ -8,8 +9,6 @@ openssh-server
 openssh-client
 wget
 vim
-ntp
-ntpdate
 rsync
 busybox-static
 gawk
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu18.04.x86_64.pkglist b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu18.04.x86_64.pkglist
index df556b887..583d62ad1 100644
--- a/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu18.04.x86_64.pkglist
+++ b/xCAT-server/share/xcat/netboot/ubuntu/compute.ubuntu18.04.x86_64.pkglist
@@ -1,4 +1,5 @@
 bash
+ifupdown
 nfs-common
 openssl
 isc-dhcp-client
@@ -8,8 +9,6 @@ openssh-server
 openssh-client
 wget
 vim
-ntp
-ntpdate
 rsync
 busybox-static
 gawk