initramfs: Make mkdir not fail

This patch make "mkdir foo" not fail if foo already exists.

(From OE-Core rev: 2bf5026933b733701d4d339e01a4f5e4468f368e)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/initrdscripts/files/init-live.sh

@@ -21,15 +21,15 @@ ISOLINUX=""
 UNIONFS="no"
 
 early_setup() {
-    mkdir /proc
-    mkdir /sys
+    mkdir -p /proc
+    mkdir -p /sys
     mount -t proc proc /proc
     mount -t sysfs sysfs /sys
 
     # support modular kernel
     modprobe isofs 2> /dev/null
 
-    mkdir /run
+    mkdir -p /run
     udevd --daemon
     udevadm trigger --action=add
 }