unconfigured.sh: set serial to a number to prevent warning

caught me off-guard while debugging other things - the message:
` [: : integer expression expected`
made me look a bit too long at the wrong place.

Fixes: a31259b1597447a0b431cd5c81a6db2bc80f1ddf
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>

diff --git a/unconfigured.sh b/unconfigured.sh
index a361a20c6f297aceceb5fadd6d2782a504823f70..6b3a8bf2f63568dc2aa5b935cb176bdc3740a6b8 100755 (executable)
--- a/unconfigured.sh
+++ b/unconfigured.sh
@@ -7,6 +7,7 @@ trap "err_reboot" ERR
 parse_cmdline() {
     proxdebug=0
     proxtui=0
+    serial=0
     # shellcheck disable=SC2013 # per word splitting is wanted here
     for par in $(cat /proc/cmdline); do
         case $par in