TT#28952 Install fai-setup-storage manually

It allows us to use GRML 2018-04-11 'small' edition.

Change-Id: Ica2f0a1b4f80962f9677563c621b9686660b03ea

templates/scripts/includes/deployment.sh

@@ -224,6 +224,32 @@ install_apt_transport_https () {
     -y --no-install-recommends install apt-transport-https
 }
 
+install_fai_setup_storage () {
+  echo "Installing fai-setup-storage (it is missing on GRML 'small')"
+
+  if [ "$(dpkg-query -f "\${db:Status-Status} \${db:Status-Eflag}" -W fai-setup-storage 2>/dev/null)" = 'installed ok' ]; then
+    echo "fai-setup-storage is already installed, nothing to do about it."
+    return 0
+  fi
+
+  # use temporary apt database for speed reasons
+  local TMPDIR
+  TMPDIR=$(mktemp -d)
+  mkdir -p "${TMPDIR}/etc/preferences.d" "${TMPDIR}/statedir/lists/partial" \
+    "${TMPDIR}/cachedir/archives/partial"
+  echo "deb http://${DEBIAN_REPO_HOST}/debian/ ${DEBIAN_RELEASE} main contrib non-free" > \
+    "${TMPDIR}/etc/sources.list"
+
+  DEBIAN_FRONTEND='noninteractive' apt-get -o dir::cache="${TMPDIR}/cachedir" \
+    -o dir::state="${TMPDIR}/statedir" -o dir::etc="${TMPDIR}/etc" \
+    -o dir::etc::trustedparts="/etc/apt/trusted.gpg.d/" update
+
+  DEBIAN_FRONTEND='noninteractive' apt-get -o dir::cache="${TMPDIR}/cachedir" \
+    -o dir::etc="${TMPDIR}/etc" -o dir::state="${TMPDIR}/statedir" \
+    -o dir::etc::trustedparts="/etc/apt/trusted.gpg.d/" \
+    -y --no-install-recommends install fai-setup-storage
+}
+
 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776917
 debootstrap_upgrade() {
   local required_version=1.0.87
@@ -1169,6 +1195,7 @@ echo "root:sipwise" | chpasswd
 
 ## partition disk
 set_deploy_status "disksetup"
+install_fai_setup_storage
 
 # 2000GB = 2097152000 blocks in /proc/partitions - so make a rough estimation
 if [ "$(awk "/ ${DISK}$/ {print \$3}" /proc/partitions)" -gt 2000000000 ] ; then