diff --git a/run b/run
index fc58d16..84ab35f 100755
--- a/run
+++ b/run
@@ -97,7 +97,7 @@ options:
     -c, --clean                    remove kernel and initramfs volumes after VM
                                    shutdown
     --shared                       using scsi disks as shared disk (The qcow2
-                                   format is also replaced with raw.) Work if -f is enabled.
+                                   format is also replaced with raw.)
     -G, --gdb [HOST]:PORT          Enable QEMU GDB stub via HOST:PORT
     -k, --kopt PARAM               pass a kernel option
     -K, --keep                     don't shutdown VM immediately
@@ -706,7 +706,9 @@ HOST=$(virsh hostname)
 printf "\b\b\b: $HOST"
 for volspec in "${VOLUMES[@]}"; do
     IFS=':' read -ra volume <<< "$volspec"
+    adddev::lock
     vm::vol::upload "${volume[@]}"
+    adddev::unlock
 done
 [ -n "$FORCE" ] && vm::remove "$VMNAME"