diff --git a/ct/umbrel-v5.sh b/ct/umbrel-v5.sh
index 9a2b7b0e..135b4218 100644
--- a/ct/umbrel-v5.sh
+++ b/ct/umbrel-v5.sh
@@ -375,6 +375,17 @@ cat <<EOF >>$LXC_CONFIG
 lxc.cgroup2.devices.allow: a
 lxc.cap.drop:
 EOF
+if [ "$CT_TYPE" == "0" ]; then
+cat <<EOF >>$LXC_CONFIG
+lxc.cgroup2.devices.allow: c 188:* rwm
+lxc.cgroup2.devices.allow: c 189:* rwm
+lxc.mount.entry: /dev/serial/by-id  dev/serial/by-id  none bind,optional,create=dir
+lxc.mount.entry: /dev/ttyUSB0       dev/ttyUSB0       none bind,optional,create=file
+lxc.mount.entry: /dev/ttyUSB1       dev/ttyUSB1       none bind,optional,create=file
+lxc.mount.entry: /dev/ttyACM0       dev/ttyACM0       none bind,optional,create=file
+lxc.mount.entry: /dev/ttyACM1       dev/ttyACM1       none bind,optional,create=file
+EOF
+fi
 msg_info "Starting LXC Container"
 pct start $CTID
 msg_ok "Started LXC Container"