refactory recipes, move system dependencies code to board specific layer

recipes-diya/diya-overlay/files/confd

@@ -3,8 +3,10 @@
 PATH=/sbin:/bin:/usr/sbin:/usr/bin
 DESC="Auto deployment configuration from media"
 
+. /etc/profile
+
 if [ -z "$DISK" ]; then
-    DISK="mmcblk1"
+    DISK="mmcblk0"
 fi
 
 case "$1" in

recipes-diya/diya-overlay/files/expandfs.sh

@@ -1,7 +1,8 @@
 #! /bin/sh
+. /etc/profile
 
 if [ -z "$DISK" ]; then
-    DISK="mmcblk1"
+    DISK="mmcblk0"
 fi
 
 if [ "$(/usr/bin/id -u)" -ne 0 ]; then

recipes-diya/initramfs/files/diya-update

@@ -2,15 +2,18 @@
 
 . /etc/profile
 
+if [ -z "$DISK" ]; then
+    DISK="mmcblk0"
+fi
+
 DEFAULT_ROOTFS_NAME="rootfs-$MACHINE.tar.bz2"
 DEFAULT_KERNEL_NAME="Image-$MACHINE.bin"
 DEFAULT_INITRAMFS_NAME="recovery-$MACHINE.cpio.gz"
 UPDATE_SRC_PATH="/home/diya/.update"
-ROOTFS_DEV="/dev/mmcblk1p2"
+ROOTFS_DEV="/dev/${DISK}p2"
 SUPPORTED_COMMAND="rootfs kernel initramfs all"
 TMP_MOUNT="/tmp/rootfs"
 
-
 rootfs()
 {
     filename=$1
@@ -54,9 +57,9 @@ rootfs()
     echo "Patch /etc/fstab"
     cat << EOF >> $TMP_MOUNT/etc/fstab
 
-/dev/mmcblk1p1  /boot   vfat    defaults        0       0
-/dev/mmcblk1p3  /var/etc        ext4    defaults        0       0
-/dev/mmcblk1p4  /home   ext4    defaults        0       0
+/dev/${DISK}p1  /boot   vfat    defaults        0       0
+/dev/${DISK}p3  /var/etc        ext4    defaults        0       0
+/dev/${DISK}p4  /home   ext4    defaults        0       0
 
 EOF
     sync