added check for /sys/devices

1 files changed, 5 insertions, 0 deletions

diff --git a/hwdetect b/hwdetect
index 533cc0d..dc7587e 100755
--- a/hwdetect
+++ b/hwdetect
@@ -34,6 +34,11 @@ usage () {
 
 [ "$1" == "" ] && usage
 
+if ! [ -d /sys/devices ]; then
+	echo "/sys/devices is not present -- mount /sys first" >&2
+	exit 1
+fi
+
 : >/tmp/modules-plain
 : >/tmp/modules-stripped
 : >/tmp/modules-sorted