stage-2: don't write to /dev/kmsg if missing

Changed files
+1 -1
nixos
modules
system
+1 -1
nixos/modules/system/boot/stage-2-init.sh
···
fi
-
if [ "${IN_NIXOS_SYSTEMD_STAGE1:-}" = true ]; then
+
if [ "${IN_NIXOS_SYSTEMD_STAGE1:-}" = true ] || [ ! -c /dev/kmsg ] ; then
echo "booting system configuration ${systemConfig}"
else
echo "booting system configuration $systemConfig" > /dev/kmsg