Add a major upgrade test - bionic to jammy

tests/system-setup/from-backup.sh

@@ -0,0 +1,54 @@
+#!/bin/bash
+
+#
+# setup system using backup data
+#
+
+# ensure working directory
+if [ ! -d "tests/system-setup" ]; then
+    echo "This script must be run from the MiaB root directory"
+    exit 1
+fi
+
+# load helper scripts
+. "tests/lib/all.sh" "tests/lib" || die "Could not load lib scripts"
+. "tests/system-setup/setup-defaults.sh" || die "Could not load setup-defaults"
+. "tests/system-setup/setup-funcs.sh" || die "Could not load setup-funcs"
+
+# ensure running as root
+if [ "$EUID" != "0" ]; then
+    die "This script must be run as root (sudo)"
+fi
+
+
+init() {
+    H1 "INIT"
+    init_test_system
+    init_miab_testing "$@" || die "Initialization failed"
+}
+
+
+# initialize test system
+init "$@"
+
+
+if [ $# -lt 3 ]; then
+    die "usage: $0 storage-user /path/to/encrypted /path/to/secret_key /path/to/restore-dir"
+fi
+storage_user="$1"    # eg. "user-data"
+duplicity_files="$2" # /path/to/encrypted
+secret_key="$3"      # /path/to/secret_key.txt
+restore_to="$4"      # eg. /home/user-data
+shift; shift; shift; shift;
+
+tests/bin/restore_backup.sh \
+    "$storage_user" \
+    "$duplicity_files" \
+    "$secret_key" \
+    "$restore_to" \
+    || die "Restore failed"
+
+
+# run setup
+miab_ldap_install "$@"
+