Initial commit for ledge installer

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/ledge_installer.sh b/ledge_installer.sh
new file mode 100755
index 0000000..84f584d
--- /dev/null
+++ b/ledge_installer.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+
+wic=$1
+dev=$2
+board=$3
+
+if [ $# -ne 3 ]; then
+	echo 'Provide wic image and the destination device'
+	exit 1
+fi
+
+loopdev=''
+# mounts wic and returns loop device
+mount_wic () {
+	local dev=$(sudo losetup --show -f -P "$wic")
+	echo "$dev"
+}
+
+board_to_block () {
+	local board=$1
+	case $board in 
+		am572x)
+			echo "2 3"
+			;;
+		*)
+			;;
+	esac
+}
+
+write_files () {
+	set -x
+	loopdev=$(mount_wic)
+	[ -z "$loopdev" ] && "Echo failed to mount WIC image" && exit 1
+
+	local esp="$loopdev"p1
+	local rootfs="$loopdev"p2
+	local esp_part=$(board_to_block "$board" | awk -F ' ' '{ print $1 }')
+	local rootfs_part=$(board_to_block "$board" | awk -F ' ' '{ print $2 }')
+
+	esp_part="$dev""$esp_part"
+	rootfs_part="$dev""$rootfs_part"
+
+	sudo dd if="$esp" of="$esp_part" bs=8M conv=fdatasync status=progress
+	[ $? -ne 0 ] && echo "Failed to write ESP partition" && exit 1
+	sudo dd if="$rootfs" of="$rootfs_part" bs=8M conv=fdatasync status=progress
+	[ $? -ne 0 ] && echo "Failed to write rootfs partition" && exit 1
+}
+
+cleanup () {
+	sudo losetup -d "$loopdev"
+}
+
+trap cleanup SIGHUP SIGINT SIGTERM
+
+write_files
+cleanup