diff --git a/hetzner-ubuntu18-zfs-setup.sh b/hetzner-ubuntu18-zfs-setup.sh
index 4d9bf60..989dc14 100644
--- a/hetzner-ubuntu18-zfs-setup.sh
+++ b/hetzner-ubuntu18-zfs-setup.sh
@@ -793,6 +793,7 @@ CONF
 
 echo "========running packages upgrade==========="
 chroot_execute "apt upgrade --yes"
+chroot_execute "apt purge cryptsetup-initramfs --yes"
 
 echo "===========add static route to initramfs via hook to add default routes due to Ubuntu initramfs DHCP bug ========="
 mkdir -p "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount"
@@ -816,8 +817,8 @@ esac
 
 configure_networking
 
-ip route add 172.31.1.1/255.255.255.255 dev ens3
-ip route add default via 172.31.1.1 dev ens3
+ip route add 172.31.1.1/255.255.255.255 dev eth0
+ip route add default via 172.31.1.1 dev eth0
 CONF
 
 chmod 755 "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount/static-route"