diff --git a/podman-matrix/05_freshinstall.sh b/podman-matrix/05_freshinstall.sh
index f1dab81..b9885e2 100755
--- a/podman-matrix/05_freshinstall.sh
+++ b/podman-matrix/05_freshinstall.sh
@@ -9,17 +9,13 @@ ensure_not_root
 
 ensure_variables_are_defined "$envvars"
 
-if [[ -d ~/.local/share/containers/storage/volumes/${confvolume} ]]; then
-    echo "Error : conf volume ${confvolume} already exists. Please remove it first (prune?)."
-    exit 1
+if [[ ! -d ~/.local/share/containers/storage/volumes/${confvolume} ]]; then
+    podman volume create matrixdotorg_synapse-data
 fi
 
-if [[ -d ~/.local/share/containers/storage/volumes/${dbvolume} ]]; then
-    echo "Error : db volume ${dbvolume} already exists. Please remove it first (prune?)."
-    exit 1
+if [[ ! -d ~/.local/share/containers/storage/volumes/${dbvolume} ]]; then
+    podman volume create matrixdotorg_synapse-pgsql
 fi
-podman volume create matrixdotorg_synapse-data && \
-podman volume create matrixdotorg_synapse-pgsql && \
 podman run -it --name ${container_name}-generate --mount type=volume,src=matrixdotorg_synapse-data,dst=/data -e SYNAPSE_SERVER_NAME=garbaye.fr -e SYNAPSE_REPORT_STATS=no ${synapse_image}:${synapse_version} generate && \
 podman rm ${container_name}-generate && \
 podman  unshare sed -i -e 's|^#public_baseurl: https://example.com/$|public_baseurl: ${GARBAYE_MATRIX_URL}|g' `podman volume inspect --format '{{ .Mountpoint }}' matrixdotorg_synapse-data`/homeserver.yaml && \
diff --git a/podman-matrix/90_prune.sh b/podman-matrix/90_prune.sh
index 6b2cf75..93231ad 100755
--- a/podman-matrix/90_prune.sh
+++ b/podman-matrix/90_prune.sh
@@ -18,8 +18,8 @@ ensure_systemd_unit_not_exists ${service_name}
 
 # remove volume
 #podman unshare rm -rf ~/${confvolume}/
-podman volume rm matrixdotorg_synapse-data
-podman volume rm matrixdotorg_synapse-pgsql
+#podman volume rm matrixdotorg_synapse-data
+#podman volume rm matrixdotorg_synapse-pgsql
 
 # remove images
 #for image in ${upstream_images} ; do