etc/Mac/create_os_x_vm_install_dmg/Installdmg2boot.sh

   1 #!/bin/bash
   2 #
   3 # This executable converts a Mavericks .app (which allows to upgrade a machine
   4 # from Mac OS 10.6.7+ to Mavericks) into a Mavericks .dmg (which allows to
   5 # install Mavericks from scratch on a machine).
   6 #
   7 # It has been tested with "Install OS X 10.9 Developer Preview.app" (build
   8 # 13A476u).
   9 #
  10 # http://www.insanelymac.com/forum/topic/290949-how-to-install-os-x-10x-snow-leopard-to-el-capitan-in-vmware-workstation-1011-workstation-proplayer-12-player-67-esxi-56/page-2#entry1956505
  11
  12 set -x
  13 set -e
  14
  15
  16 # The first argument is the path to the .app bundle (the input of the
  17 # executable).
  18 inputApp="$1"
  19 # The second argument is the path to the .dmg file (the output of the
  20 # executable), which must end with ".dmg".
  21 outputDmg="$2"
  22 [ "${outputDmg: -4}" = .dmg ]
  23
  24
  25 #
  26 # The problem: /System/Installation/Packages inside /BaseSystem.dmg inside
  27 # "$inputApp"/Contents/SharedSupport/InstallESD.dmg is a dangling symlink,
  28 # which prevents installing Mavericks from scratch.
  29 # The solution: Replace the symlink with the /Packages directory inside
  30 # "$inputApp"/Contents/SharedSupport/InstallESD.dmg.
  31 #
  32
  33
  34 tmpDir=`mktemp -d -t 'Create Mavericks Installer'`
  35 installMnt="$tmpDir"/install
  36 installPkg="$installMnt"/Packages
  37 outputMnt="$tmpDir"/output
  38 outputPkg="$outputMnt"/System/Installation/Packages
  39
  40
  41 cleanup() {
  42    if [ -d "$outputMnt" ]; then
  43       hdiutil detach "$outputMnt"
  44    fi
  45
  46
  47    if [ -d "$installMnt" ]; then
  48       hdiutil detach "$installMnt"
  49    fi
  50
  51
  52    rmdir -- "$tmpDir"
  53 }
  54
  55
  56 # Cleanup on failure.
  57 trap cleanup ERR
  58
  59
  60 # Mount InstallESD.dmg so we can access /BaseSystem.dmg and /Packages inside.
  61 hdiutil attach "$inputApp"/Contents/SharedSupport/InstallESD.dmg \
  62    -mountpoint "$installMnt" -nobrowse
  63
  64
  65 # Create "$outputDmg", a read/write copy of the read-only BaseSystem.dmg.
  66 hdiutil convert "$installMnt"/BaseSystem.dmg -format UDRW -o "$outputDmg"
  67
  68
  69 # Enlarge "$outputDmg" to accommodate for our modifications. The UDRW image
  70 # format is not sparse, so we must precisely compute the new size.
  71 curSectors=`hdiutil resize "$outputDmg" -limits | tail -1 | awk '{ print $2 }'`
  72 extraSectors=`BLOCKSIZE=512 du -s -- "$installPkg" | awk '{ print $1 }'`
  73 hdiutil resize "$outputDmg" -sectors $((curSectors + extraSectors))
  74
  75
  76 # Mount "$outputDmg".
  77 hdiutil attach "$outputDmg" -mountpoint "$outputMnt" -nobrowse
  78
  79
  80 # Modify "$outputDmg".
  81 rm -- "$outputPkg"
  82 cp -r -- "$installPkg" "$outputPkg"
  83
  84
  85 # Cleanup on success.
  86 trap ERR; cleanup
  87
  88
  89 ls -alh -- "$outputDmg"