initial commit: add a script which creates zeroed files

msm-cros-efs-loader.sh

+#!/bin/sh
+
+# For now this just creates empty files which is fine for non-LTE devices.
+# TODO: Implement parsing the actual EFS from /dev/mmcblk*boot0
+# See: https://chromium.googlesource.com/chromiumos/overlays/board-overlays/+/refs/heads/main/baseboard-trogdor/chromeos-base/chromeos-bsp-baseboard-trogdor/files/verify_fsg.sh
+
+directory="/var/lib/rmtfs"
+
+if [ ! -d "$directory" ]; then
+	mkdir -p "$directory"
+fi
+
+for i in fs1 fs2 fsg fsc; do
+	file="$directory/modem_$i"
+	if [ ! -f "$file" ]; then
+		dd if=/dev/zero bs=1M count=2 of="$file"
+	fi
+done