Prepare initramfs for Hikvision

make_initrd.sh

#!/bin/bash
dd if=/dev/zero of=tmp.ext2 bs=1M count=16
mkfs.ext2 ./tmp.ext2
mkdir -p tmp_mp
sudo mount ./tmp.ext2 ./tmp_mp
sudo cp -rf fs/* ./tmp_mp
sudo umount ./tmp_mp
rm -r ./tmp_mp
gzip ./tmp.ext2
mkimage -A arm -O Linux -T ramdisk -C gzip -n ramdisk_1.0.28_ubuntu -d ./tmp.ext2.gz test_initrd.gz
rm ./tmp.ext2.gz