misc/target/initrd.in

   1 #!/bin/bash
   2 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   3 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
   4 #
   5 # T2 SDE: misc/target/initrd.in
   6 # Copyright (C) 2004 - 2018 The T2 SDE Project
   7 #
   8 # More information can be found in the files COPYING and README.
   9 #
  10 # This program is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; version 2 of the License. A copy of the
  13 # GNU General Public License can be found in the file COPYING.
  14 # --- T2-COPYRIGHT-NOTE-END ---
  15
  16 # extend_initrd initrd-filename from-dir
  17 # adds additional content to an existing initrd (cpio image)
  18 extend_initrd()
  19 {
  20         local initrd=$1
  21         local from=$2
  22
  23         echo "Extending initrd archive ..."
  24         echo "Initrd: ${initrd/$build_root/\$root}"
  25         echo "  from: ${from/$build_root/\$root}"
  26
  27         (
  28           # extract archive
  29           rm -rf $initrd.dir ;  mkdir $initrd.dir
  30           cd $initrd.dir
  31
  32           zstd -d -c $initrd | cpio -i
  33
  34           # copy extensions
  35           cd $from
  36           cp -a . $initrd.dir
  37
  38           # create archive
  39           cd $initrd.dir
  40           find . | cpio -o -H newc | zstd -19 -T0 > $initrd
  41         )
  42
  43         # cleanup
  44         rm -rf $initrd.dir
  45 }