diff --git a/sco_version.py b/sco_version.py
index a7ecb58a..90ed4ec7 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.0.30"
+SCOVERSION = "9.0.31"
 
 SCONAME = "ScoDoc"
 
diff --git a/tools/configure-scodoc9.sh b/tools/configure-scodoc9.sh
index b1c18ec5..fdb5e3b7 100755
--- a/tools/configure-scodoc9.sh
+++ b/tools/configure-scodoc9.sh
@@ -120,7 +120,7 @@ then
     echo
     echo "Création des tables et du compte admin"
     echo
-    msg="Saisir le mot de passe de l\'administrateur \(admin\):"
+    msg="Saisir le mot de passe de l\'administrateur \(admin, via le web\):"
     su -c "(cd /opt/scodoc; source venv/bin/activate; flask db upgrade; flask sco-db-init; echo; echo $msg; flask user-password admin)" "$SCODOC_USER" || die "Erreur: sco-db-init"
     echo
     echo "Base initialisée et admin créé."
@@ -135,6 +135,7 @@ systemctl start scodoc9
 echo
 echo "Service configuré et démarré."
 echo "Vous pouvez vous connecter en web et vous identifier comme \"admin\"."
+echo "ou bien importer vos données et comptes de la version ScoDoc 7."
 echo
 
 
diff --git a/tools/debian/postrm b/tools/debian/postrm
index a01b1a38..c657afd6 100755
--- a/tools/debian/postrm
+++ b/tools/debian/postrm
@@ -4,16 +4,18 @@
 # Ne touche pas aux données (/opt/scodoc-data)
 # N'enlève complètement /opt/scodoc qui si --purge
 
-systemctl stop scodoc9
-systemctl disable scodoc9
+systemctl stop scodoc9 || echo "scodoc9 non lancé"
+systemctl disable scodoc9 || echo "scodoc9 systemd non configuré"
 
 if [ "$#" == 1 ] && [ "$1" == "purge" ]
 then
     /bin/rm -rf /opt/scodoc
-    /bin/rm -f scodoc9.service
+    /bin/rm -f /etc/systemd/system/scodoc9.service
     /bin/rm -f /etc/systemd/system/scodoc-updater.service 
     /bin/rm -f /etc/systemd/system/scodoc-updater.timer 
     /bin/rm -f /etc/nginx/sites-enabled/scodoc9.nginx
+    systemctl daemon-reload
 fi
 
-systemctl reload nginx
+systemctl reload nginx || echo 'nginx non fonctionnel'
+
diff --git a/tools/import_scodoc7_dept.py b/tools/import_scodoc7_dept.py
index a9a727f5..cedf0a93 100644
--- a/tools/import_scodoc7_dept.py
+++ b/tools/import_scodoc7_dept.py
@@ -211,7 +211,7 @@ def get_class_for_table(table):
 
 
 def get_boolean_columns(klass):
-    "return list of names of boolean attributes in this model"
+    "return list of names of boolean attributes in this (ScoDoc 9) model"
     boolean_columns = []
     column_names = sqlalchemy.inspect(klass).columns.keys()
     for column_name in column_names:
@@ -412,7 +412,8 @@ def convert_object(
         obj[k] = uid
     # Converti les booléens
     for k in boolean_columns:
-        obj[k] = bool(obj[k])
+        if k in obj:
+            obj[k] = bool(obj[k])
 
     # Ajoute le département si besoin:
     if hasattr(klass, "dept_id"):