===================================================================
RCS file: /cvs/openbsd/fw_update/fw_install.sh,v
retrieving revision 1.32
retrieving revision 1.33
diff -u -r1.32 -r1.33
--- openbsd/fw_update/fw_install.sh	2021/11/19 03:00:54	1.32
+++ openbsd/fw_update/fw_install.sh	2021/11/19 03:13:11	1.33
@@ -63,9 +63,9 @@
 	do_as _file "$@"
 }
 
-VNAME=$(sysctl -n kern.osrelease)
-VERSION="${VNAME%.*}${VNAME#*.}"
-FWDIR="$VNAME"
+VNAME=${VNAME:-$(sysctl -n kern.osrelease)}
+VERSION=${VERSION:"${VNAME%.*}${VNAME#*.}"}
+FWDIR=${FWDIR:-$VNAME}
 MODE=${MODE:-install}
 
 # TODO: We need the firmware for the system we just installed