Fail if udevadm could not be run

Fixes: #668

diff --git a/dracut-init.sh b/dracut-init.sh
index aff04c89084b98c97c33d226a2b73abf1ca074a9..64a2294aae311df6660df10385c932c3d1eb3dc1 100644 (file)
--- a/dracut-init.sh
+++ b/dracut-init.sh
@@ -461,6 +461,10 @@ inst_rules_wildcard() {
 
 prepare_udev_rules() {
     [ -z "$UDEVVERSION" ] && export UDEVVERSION=$(udevadm --version)
+    if [ -z "$UDEVVERSION" ]; then
+        derror "Failed to detect udev version!"
+        return 1
+    fi
 
     for f in "$@"; do
         f="${initdir}/etc/udev/rules.d/$f"
@@ -1024,4 +1028,4 @@ is_qemu_virtualized() {
         [[  "$vendor" == "Bochs" ]] && return 0
     done
     return 1
-}
\ No newline at end of file
+}