#!/bin/bash
set -eu
set +o posix

type -p iesd >/dev/null 2>&1 || sudo gem install iesd

osx11_path='/Applications/Install OS X El Capitan.app'
osx12_path='/Applications/Install macOS Sierra.app'

# blank="/Volumes/VirtualMachines/blank.dmg"
osx09_disk="/Volumes/VirtualMachines/osx-10.9-maverick.dmg"
osx10_disk="/Volumes/VirtualMachines/osx-10.10-yosemite.dmg"
osx11_disk="/Volumes/VirtualMachines/osx-10.11-el-capitan.dmg"
osx12_disk="/Volumes/VirtualMachines/osx-10.12-sierra.dmg"

# cp "${blank}" "${osx11_disk}"
rm -rf "${osx11_disk}"
iesd -i "${osx11_path}" -o "${osx11_disk}" -t BaseSystem


# hdiutil convert /tmp/ElCapitan.sparseimage -format UDTO -o /tmp/ElCapitan