#!/bin/bash

# Unpack the uinitrd (for Slackware ARM it's probably the "kirkwood" one) you wish to modify:
#
# cd /tmp
# rm -rf initrd-hack && cd initrd-hack
# dd if=~/ac/kernels/kirkwood/uinitrd-kirkwood bs=64 skip=1 | gzip -dc | cpio -div
#
# Make your modifications; then it's time to pack it up back into a unitrd.
#

# Pack an unpacked initrd so we can hack it and test changes.
find . | cpio -o -H newc | gzip -1fv > /tmp/repack.gz
# Call the U-Boot program that turns standard "initrd" format into "uInitrd":
mkimage \
  -A arm \
  -O linux \
  -T ramdisk \
  -C gzip \
  -n 'TEMP hack RAM disk' \
  -d /tmp/repack.gz \
  /mnt/prisroot/tftpboot/slackwarearm-current/uinitrd-tmp

#EOF