diff --git a/xCAT-server/share/xcat/netboot/centos/dracut_047 b/xCAT-server/share/xcat/netboot/centos/dracut_047
new file mode 120000
index 000000000..fe26fce05
--- /dev/null
+++ b/xCAT-server/share/xcat/netboot/centos/dracut_047
@@ -0,0 +1 @@
+../rh/dracut_047
\ No newline at end of file
diff --git a/xCAT-server/share/xcat/netboot/rh/compute.rhels8.ppc64le.pkglist b/xCAT-server/share/xcat/netboot/rh/compute.rhels8.ppc64le.pkglist
index 7c33f0d7b..3777e6445 100644
--- a/xCAT-server/share/xcat/netboot/rh/compute.rhels8.ppc64le.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/compute.rhels8.ppc64le.pkglist
@@ -11,3 +11,4 @@ wget
 python3
 tar
 bzip2
+bc
diff --git a/xCAT-server/share/xcat/netboot/rh/compute.rhels8.x86_64.pkglist b/xCAT-server/share/xcat/netboot/rh/compute.rhels8.x86_64.pkglist
index 7c33f0d7b..3777e6445 100644
--- a/xCAT-server/share/xcat/netboot/rh/compute.rhels8.x86_64.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/compute.rhels8.x86_64.pkglist
@@ -11,3 +11,4 @@ wget
 python3
 tar
 bzip2
+bc
diff --git a/xCAT-server/share/xcat/netboot/rh/genimage b/xCAT-server/share/xcat/netboot/rh/genimage
index 42abf3e30..68be043da 100755
--- a/xCAT-server/share/xcat/netboot/rh/genimage
+++ b/xCAT-server/share/xcat/netboot/rh/genimage
@@ -717,7 +717,7 @@ if (@new_order) {
     @ndrivers = (@new_order, @ndrivers);
 }
 
-if (-f "$rootimg_dir/lib/modules/$kernelver/kernel/drivers/net/ethernet/mellanox/mlx4/mlx4_en.ko") {
+if (-d "$rootimg_dir/lib/modules/$kernelver/kernel/drivers/net/ethernet/mellanox/mlx4") {
     for (@ndrivers) {
         s/mlx_en/mlx4_en/;
     }
diff --git a/xCAT-server/share/xcat/netboot/rh/service.rhels8.ppc64le.pkglist b/xCAT-server/share/xcat/netboot/rh/service.rhels8.ppc64le.pkglist
index e15993e89..4544f99e2 100644
--- a/xCAT-server/share/xcat/netboot/rh/service.rhels8.ppc64le.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/service.rhels8.ppc64le.pkglist
@@ -13,3 +13,4 @@ perl-DBD-Pg
 python3
 tar
 bzip2
+bc
diff --git a/xCAT-server/share/xcat/netboot/rh/service.rhels8.x86_64.pkglist b/xCAT-server/share/xcat/netboot/rh/service.rhels8.x86_64.pkglist
index e15993e89..4544f99e2 100644
--- a/xCAT-server/share/xcat/netboot/rh/service.rhels8.x86_64.pkglist
+++ b/xCAT-server/share/xcat/netboot/rh/service.rhels8.x86_64.pkglist
@@ -13,3 +13,4 @@ perl-DBD-Pg
 python3
 tar
 bzip2
+bc