misc/target/initrd.in

   1 #!/bin/bash
   2 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   3 # T2 SDE: misc/target/initrd.in
   4 # Copyright (C) 2004 - 2023 The T2 SDE Project
   5 #
   6 # This Copyright note is generated by scripts/Create-CopyPatch,
   7 # more information can be found in the files COPYING and README.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License version 2.
  11 # --- T2-COPYRIGHT-NOTE-END ---
  12
  13 # extend_initrd initrd-filename from-dir
  14 # adds additional content to an existing initrd (cpio image)
  15 extend_initrd() {
  16         local initrd=$1
  17         local from=$2
  18
  19         echo "Extending initrd archive ..."
  20         echo "Initrd: ${initrd/$build_root/\$root}"
  21         echo "  from: ${from/$build_root/\$root}"
  22
  23         (
  24           # extract archive
  25           rm -rf $initrd.dir;  mkdir $initrd.dir
  26           cd $initrd.dir
  27
  28           zstd -d -c $initrd | cpio -i
  29
  30           # copy extensions
  31           cd $from
  32           cp -a . $initrd.dir
  33
  34           # create archive
  35           cd $initrd.dir
  36           find . | cpio -o -H newc | zstd -19 -T0 > $initrd
  37         )
  38
  39         # cleanup
  40         rm -rf $initrd.dir
  41 }