Update buildroot & docker (#25)

* Update docker & buildroot

* Fix

* fix versions

buildroot/package/eudev/S10udev

@@ -16,10 +16,6 @@
 #	/dev/zero, /dev/null -- that's needed to boot and run this script.
 #
 
-# Check for missing binaries
-UDEV_BIN=/sbin/udevd
-test -x $UDEV_BIN || exit 5
-
 # Check for config file and read it
 UDEV_CONFIG=/etc/udev/udev.conf
 test -r $UDEV_CONFIG || exit 6
@@ -28,8 +24,8 @@ test -r $UDEV_CONFIG || exit 6
 case "$1" in
     start)
         printf "Populating %s using udev: " "${udev_root:-/dev}"
-        printf '\000\000\000\000' > /proc/sys/kernel/hotplug
-        $UDEV_BIN -d || { echo "FAIL"; exit 1; }
+        [ -e /proc/sys/kernel/hotplug ] && printf '\000\000\000\000' > /proc/sys/kernel/hotplug
+        /sbin/udevd -d || { echo "FAIL"; exit 1; }
         udevadm trigger --type=subsystems --action=add
         udevadm trigger --type=devices --action=add
         udevadm settle --timeout=30 || echo "udevadm settle failed"