diff --git a/boxes/ubuntu/appliance.kiwi b/boxes/ubuntu/appliance.kiwi
index 9bf70be..e3d4288 100644
--- a/boxes/ubuntu/appliance.kiwi
+++ b/boxes/ubuntu/appliance.kiwi
@@ -47,10 +47,6 @@
     </repository>
     <packages type="image">
         <package name="libpam-runtime"/>
-        <package name="gawk"/>
-        <package name="apt-utils"/>
-        <package name="debconf"/>
-        <package name="dialog"/>
         <package name="netplan.io"/>
         <package name="networkd-dispatcher"/>
         <package name="net-tools"/>
@@ -86,6 +82,7 @@
         <package name="dracut-kiwi-oem-dump"/>
         <package name="usrmerge"/>
         <package name="mawk"/>
+        <package name="gawk"/>
         <package name="python3-dev"/>
         <package name="libxml2-dev"/>
         <package name="libxslt-dev"/>
@@ -105,16 +102,5 @@
         <package name="python3-solv"/>
         <archive name="box-key-unsafe.tgz"/>
     </packages>
-    <packages type="bootstrap">
-        <package name="locales"/>
-        <package name="coreutils"/>
-        <package name="language-pack-en"/>
-        <package name="passwd"/>
-        <package name="base-passwd"/>
-        <package name="adduser"/>
-        <package name="debconf"/>
-        <package name="ca-certificates"/>
-        <package name="apt-utils"/>
-        <package name="debconf-i18n"/>
-    </packages>
+    <packages type="bootstrap"/>
 </image>
diff --git a/boxes/ubuntu/post_bootstrap.sh b/boxes/ubuntu/post_bootstrap.sh
deleted file mode 100644
index 264687f..0000000
--- a/boxes/ubuntu/post_bootstrap.sh
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-# Intermediate C locale setup
-export LANG=C.UTF-8
-export LANGUAGE=
-
-# Intermediate Noninteractive debconf
-echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
-
-# Download packages for which we need the script code
-apt-get -q -c /kiwi_apt.conf -y --no-install-recommends install \
-    "-oDebug::pkgDPkgPm=1" "-oDPkg::Pre-Install-Pkgs::=cat >/tmp/postpacks" \
-base-passwd
-
-# Run package scripts for core OS packages which provides
-# mandatory setup code in their pre/post scripts
-export DPKG_ROOT=/
-while read -r package;do
-    pushd "$(dirname "${package}")" || exit 1
-    if [ "$(basename "${package}")" = "base-passwd.deb" ];then
-        # Required to create passwd, groups, the root user...
-        dpkg -e "${package}"
-        test -e DEBIAN/preinst && bash DEBIAN/preinst install
-        test -e DEBIAN/postinst && bash DEBIAN/postinst
-        rm -rf DEBIAN
-    fi
-    popd || exit 1
-done < /tmp/postpacks
-rm -f /tmp/postpacks