[vbox-dev] Linux Additions init script bug (Linux 4.0)

[Marcos Felipe Rasia de Mello]

And we are bitten again.

https://www.virtualbox.org/pipermail/vbox-dev/2013-August/011718.html

Suggestion (plus grep cleanup):

--- vboxadd.sh.orig     2014-05-06 07:02:16.000000000 -0300
+++ vboxadd.sh  2015-03-03 08:27:39.199344842 -0300
@@ -286,8 +286,8 @@
 start()
 {
     begin "Starting the VirtualBox Guest Additions ";
-    uname -r | grep -q -E '^2\.6|^3' 2>/dev/null &&
-        ps -A -o comm | grep -q '/*udevd$' 2>/dev/null ||
+    expr `uname -r` '>=' '2.6' >/dev/null &&
+        ps -A -o comm | grep -q '/*udevd$' ||
         no_udev=1
     running_vboxguest || {
         rm -f $dev || {
@@ -311,7 +311,7 @@

     running_vboxsf || {
         $MODPROBE vboxsf > /dev/null 2>&1 || {
-            if dmesg | grep "vboxConnect failed" > /dev/null 2>&1; then
+            if dmesg | grep -q "vboxConnect failed"; then
                 fail_msg
                 echo "Unable to start shared folders support.  Make
sure that your VirtualBox build"
                 echo "supports this feature."