create_device init script

.gitignore

@@ -1,3 +1,4 @@
 olinux/debootstrap
 olinux/sunxi
+olinux/olinux.img
 *.swp

olinux/create_device.sh

@@ -0,0 +1,100 @@
+#!/bin/bash
+
+set -e
+
+show_usage() {
+cat <<EOF
+# NAME
+
+  $(basename $0) -- Script format device and copy rootfs on it
+
+# OPTIONS
+
+  -d		device name (img, /dev/sdc, /dev/mmc)	(mandatory)
+  -s		size of img in MB		 	(mandatory only for img device option)
+
+EOF
+exit 1
+}
+
+DEST=./olinux
+MNT=/mnt
+IMAGE=olinux.img
+
+while getopts "s:d:" opt; do
+  case $opt in
+    d)
+      DEVICE=$OPTARG
+      ;;
+    s)
+      SDSIZE=$OPTARG
+      ;;
+    \?)
+      show_usage
+      ;;
+  esac
+done
+
+if [ -z $DEVICE ] ; then
+  show_usage
+fi
+
+if [ "$DEVICE" == "img" ] && [ -z $SDSIZE ] ; then
+  show_usage
+fi
+
+if [ "${DEVICE}" == "img" ] ; then
+  echo "- Create image."
+  rm -f olinux/$IMAGE
+  # create image file
+  dd if=/dev/zero of=olinux/$IMAGE bs=1MB count=$SDSIZE status=noxfer >/dev/null 2>&1
+  
+  # find first avaliable free device
+  DEVICE=$(losetup -f)
+  TYPE="loop"
+  
+  # mount image as block device
+  losetup $DEVICE $DEST/$IMAGE >/dev/null 2>&1
+  
+  sync
+  
+fi
+
+# create one partition starting at 2048 which is default
+echo "- Partitioning"
+parted --script -a optimal $DEVICE unit GB mklabel msdos 
+parted --script -a optimal $DEVICE unit GB mkpart primary ext4 2048s 99%
+parted --script -a optimal $DEVICE unit GB align-check optimal 1
+
+if [ "${TYPE}" == "loop" ] ; then
+  DEVICEP1=${DEVICE}p1
+else
+  DEVICEP1=${DEVICE}1
+fi
+
+echo "- Formating"
+# create filesystem
+mkfs.ext4 $DEVICEP1 >/dev/null 2>&1
+
+# tune filesystem
+tune2fs -o journal_data_writeback $DEVICEP1 >/dev/null 2>&1
+
+echo "- Mount filesystem"
+# mount image to already prepared mount point
+mount -t ext4 $DEVICEP1 $MNT
+
+echo "- Copy bootstrap files"
+# copy debootstrap
+cp -ar olinux/debootstrap/* $MNT/
+sync
+
+echo "- Write sunxi-with-spl"
+dd if=olinux/sunxi/u-boot/u-boot-sunxi-with-spl.bin of=${DEVICE} bs=1024 seek=8 >/dev/null 2>&1
+
+echo "- Umount"
+if [ "${TYPE}" == "loop" ] ; then
+  umount $MNT
+  losetup -d $DEVICE
+else
+  umount $MNT
+fi