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macos-guest-virtualbox.sh
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#!/bin/bash
# Push-button installer of macOS on VirtualBox
# (c) myspaghetti, licensed under GPL2.0 or higher
# url: https://github.com/myspaghetti/macos-guest-virtualbox
# version 0.92.2
# Dependencies: bash coreutils gzip unzip wget xxd dmg2img
# Supported versions:
# VirtualBox with Extension Pack >= 6.1.6
# GNU bash >= 4.3, GNU coreutils >= 8.22,
# GNU gzip >= 1.5, GNU wget >= 1.14,
# Info-ZIP unzip >= 6.0, xxd >= 1.7,
# dmg2img >= 1.6.5
function set_variables() {
# Customize the installation by setting these variables:
vm_name="macOS" # name of the VirtualBox virtual machine
macOS_release_name="Catalina" # install "HighSierra" "Mojave" or "Catalina"
storage_size=80000 # VM disk image size in MB, minimum 22000
cpu_count=2 # VM CPU cores, minimum 2
memory_size=4096 # VM RAM in MB, minimum 2048
gpu_vram=128 # VM video RAM in MB, minimum 34, maximum 128
resolution="1280x800" # VM display resolution
# The following commented commands, when run on a genuine Mac,
# may provide the values for NVRAM and other parameters required by iCloud,
# iMessage, and other connected Apple applications.
# Parameters taken from a genuine Mac may result in a "Call customer support"
# message if they do not match the genuine Mac exactly.
# Non-genuine yet genuine-like parameters usually work.
# system_profiler SPHardwareDataType
DmiSystemFamily="MacBook Pro" # Model Name
DmiSystemProduct="MacBookPro11,2" # Model Identifier
DmiSystemSerial="NO_DEVICE_SN" # Serial Number (system)
DmiSystemUuid="CAFECAFE-CAFE-CAFE-CAFE-DECAFFDECAFF" # Hardware UUID
DmiOEMVBoxVer="string:1" # Apple ROM Info
DmiOEMVBoxRev="string:.23456" # Apple ROM Info
DmiBIOSVersion="string:MBP7.89" # Boot ROM Version
# ioreg -l | grep -m 1 board-id
DmiBoardProduct="Mac-3CBD00234E554E41"
# nvram 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:MLB
DmiBoardSerial="NO_LOGIC_BOARD_SN"
MLB="${DmiBoardSerial}"
# nvram 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14:ROM
ROM='%aa*%bbg%cc%dd'
# ioreg -l -p IODeviceTree | grep \"system-id
SYSTEM_UUID="aabbccddeeff00112233445566778899"
# csrutil status
SYSTEM_INTEGRITY_PROTECTION='10' # '10' - enabled, '77' - disabled
# Additional configurations may be saved in external files and loaded with the
# following command prior to running the script:
# export macos_vm_vars_file=/path/to/variable_assignment_file
# "variable_assignment_file" is a plain text file that contains zero or more
# lines with a variable assignment for any variable specified above.
[[ -r "${macos_vm_vars_file}" ]] && source "${macos_vm_vars_file}"
}
# welcome message
function welcome() {
echo -ne "\n${highlight_color}Push-button installer of macOS on VirtualBox${default_color}
This script installs only open-source software and unmodified Apple binaries,
and requires about ${highlight_color}40GB${default_color} of available storage, of which 20GB are for temporary
installation files that may be deleted when the script is finished.
The script interacts with the virtual machine twice, ${highlight_color}please do not interact${default_color}
${highlight_color}with the virtual machine manually${default_color} before the script is finished.
Documentation about optional configuration, ${highlight_color}iCloud and iMessage connectivity${default_color},
resuming the script by stages, and other topics can be viewed with the
following command:
"
would_you_like_to_know_less
echo -ne "\n${highlight_color}Press enter to review the script configuration.${default_color}"
clear_input_buffer_then_read
function pad_to_33_chars() {
local padded="${1} "
echo -n "${padded:0:33}"
}
# custom settings prompt
echo -e "\nvm_name=\"${vm_name}\""
pad_to_33_chars "macOS_release_name=\"${macOS_release_name}\""
echo "# install \"HighSierra\" \"Mojave\" or \"Catalina\""
pad_to_33_chars "storage_size=${storage_size}"
echo "# VM disk image size in MB. minimum 22000"
pad_to_33_chars "cpu_count=${cpu_count}"
echo "# VM CPU cores, minimum 2"
pad_to_33_chars "memory_size=${memory_size}"
echo "# VM RAM in MB, minimum 2048"
pad_to_33_chars "gpu_vram=${gpu_vram}"
echo "# VM video RAM in MB, minimum 34, maximum 128"
pad_to_33_chars "resolution=\"${resolution}\""
echo "# VM display resolution"
echo -ne "\nThese values may be customized as described in the documentation.\n
${highlight_color}Press enter to continue, CTRL-C to exit.${default_color}"
clear_input_buffer_then_read
}
# check dependencies
function check_shell() {
if [[ "${SHELL}" =~ /bash ]]; then
if [[ -z "${BASH_VERSION}" ]]; then
echo "Can't determine BASH_VERSION. Exiting."
exit
elif [[ ! ( "${BASH_VERSION:0:1}" -ge 4 ) ]]; then
echo "Please run this script on Bash 4.3 or higher."
if [[ -n "$(sw_vers 2>/dev/null)" ]]; then
echo "macOS detected. Make sure the script is not running on"
echo "the default /bin/bash which is version 3."
fi
exit
elif [[ ! ( "${BASH_VERSION:0:1}" -ge 5
|| "${BASH_VERSION:0:3}" =~ 4\.[3-9]
|| "${BASH_VERSION:0:4}" =~ 4\.[12][0-9] ) ]]; then
echo "Please run this script on Bash 4.3 or higher."
exit
fi
elif [[ "${SHELL}" =~ /zsh ]]; then
if [[ -z "${ZSH_VERSION}" ]]; then
echo "Can't determine ZSH_VERSION."
if [[ -n "${BASH_VERSION}" ]]; then
echo "The script appears to be running on bash inside zsh."
echo "Please explicitly execute the script with zsh or edit the #! at the top of the"
echo "script so it points to the zsh executable."
fi
echo "Exiting."
exit
elif [[ ! ( "${ZSH_VERSION:0:1}" -ge 6
|| "${ZSH_VERSION:0:3}" =~ 5\.[5-9]
|| "${ZSH_VERSION:0:4}" =~ 5\.[1-4][0-9] ) ]]; then
echo "Please run this script on zsh version 5.5 or higher."
exit
fi
setopt extendedglob sh_word_split ksh_arrays posix_argzero nullglob
else
echo "Can't determine SHELL. Exiting."
exit
fi
}
function check_gnu_coreutils_prefix() {
if [[ -n "$(gcsplit --help 2>/dev/null)" ]]; then
function base64() {
gbase64 "$@"
}
function csplit() {
gcsplit "$@"
}
function expr() {
gexpr "$@"
}
function ls() {
gls "$@"
}
function od() {
god "$@"
}
function split() {
gsplit "$@"
}
function tac() {
gtac "$@"
}
fi
}
function check_dependencies() {
# check if running on macOS and non-GNU coreutils
if [[ -n "$(sw_vers 2>/dev/null)" ]]; then
# Add Homebrew GNU coreutils to PATH if path exists
homebrew_gnubin="/usr/local/opt/coreutils/libexec/gnubin"
if [[ -d "${homebrew_gnubin}" ]]; then
PATH="${homebrew_gnubin}:${PATH}"
fi
# if csplit isn't GNU variant, exit
if [[ -z "$(csplit --help 2>/dev/null)" ]]; then
echo -e "\nmacOS detected.\nPlease use a package manager such as ${highlight_color}homebrew${default_color}, ${highlight_color}pkgsrc${default_color}, ${highlight_color}nix${default_color}, or ${highlight_color}MacPorts${default_color}"
echo "Please make sure the following packages are installed and that"
echo "their path is in the PATH variable:"
echo -e "${highlight_color}bash coreutils dmg2img gzip unzip wget xxd${default_color}"
echo "Please make sure Bash and coreutils are the GNU variant."
exit
fi
fi
# check for xxd, gzip, unzip, coreutils, wget
if [[ -z "$(echo "xxd" | xxd -p 2>/dev/null)" ||
-z "$(gzip --help 2>/dev/null)" ||
-z "$(unzip -hh 2>/dev/null)" ||
-z "$(csplit --help 2>/dev/null)" ||
-z "$(wget --version 2>/dev/null)" ]]; then
echo "Please make sure the following packages are installed:"
echo "coreutils gzip unzip xxd wget"
echo "Please make sure the coreutils and gzip packages are the GNU variant."
exit
fi
# wget supports --show-progress from version 1.16
regex='1\.1[6-9]|1\.[2-9][0-9]' # for zsh compatibility
if [[ "$(wget --version 2>/dev/null | head -n 1)" =~ ${regex} ]]; then
wgetargs="--quiet --continue --show-progress" # pretty
else
wgetargs="--continue" # ugly
fi
# VirtualBox in ${PATH}
# Cygwin
if [[ -n "$(cygcheck -V 2>/dev/null)" ]]; then
if [[ -n "$(cmd.exe /d /s /c call VBoxManage.exe -v 2>/dev/null)" ]]; then
function VBoxManage() {
cmd.exe /d /s /c call VBoxManage.exe "$@"
}
else
cmd_path_VBoxManage='C:\Program Files\Oracle\VirtualBox\VBoxManage.exe'
echo "Can't find VBoxManage in PATH variable,"
echo "checking ${cmd_path_VBoxManage}"
if [[ -n "$(cmd.exe /d /s /c call "${cmd_path_VBoxManage}" -v 2>/dev/null)" ]]; then
function VBoxManage() {
cmd.exe /d /s /c call "${cmd_path_VBoxManage}" "$@"
}
echo "Found VBoxManage"
else
echo "Please make sure VirtualBox version 6.0 or higher is installed, and that"
echo "the path to the VBoxManage.exe executable is in the PATH variable, or assign"
echo "in the script the full path including the name of the executable to"
echo -e "the variable ${highlight_color}cmd_path_VBoxManage${default_color}"
exit
fi
fi
# Windows Subsystem for Linux (WSL)
elif [[ "$(cat /proc/sys/kernel/osrelease 2>/dev/null)" =~ [Mm]icrosoft ]]; then
if [[ -n "$(VBoxManage.exe -v 2>/dev/null)" ]]; then
function VBoxManage() {
VBoxManage.exe "$@"
}
else
wsl_path_VBoxManage='/mnt/c/Program Files/Oracle/VirtualBox/VBoxManage.exe'
echo "Can't find VBoxManage in PATH variable,"
echo "checking ${wsl_path_VBoxManage}"
if [[ -n "$("${wsl_path_VBoxManage}" -v 2>/dev/null)" ]]; then
PATH="${PATH}:${wsl_path_VBoxManage%/*}"
function VBoxManage() {
VBoxManage.exe "$@"
}
echo "Found VBoxManage"
else
echo "Please make sure VirtualBox is installed on Windows, and that the path to the"
echo "VBoxManage.exe executable is in the PATH variable, or assigned in the script"
echo -e "to the variable \"${highlight_color}wsl_path_VBoxManage${default_color}\" including the name of the executable."
exit
fi
fi
# everything else (not cygwin and not wsl)
elif [[ -z "$(VBoxManage -v 2>/dev/null)" ]]; then
echo "Please make sure VirtualBox version 6.0 or higher is installed,"
echo "and that the path to the VBoxManage executable is in the PATH variable."
exit
fi
# VirtualBox version
vbox_version="$(VBoxManage -v 2>/dev/null)"
vbox_version="${vbox_version//[$'\r\n']/}"
if [[ -z "${vbox_version}" || -z "${vbox_version:2:1}" ]]; then
echo "Can't determine VirtualBox version. Exiting."
exit
elif [[ ! ( "${vbox_version:0:1}" -gt 5
|| "${vbox_version:0:3}" =~ 5\.2 ) ]]; then
echo -e "\nPlease make sure VirtualBox version 5.2 or higher is installed."
echo "Exiting."
exit
elif [[ "${vbox_version:0:1}" = 5 ]]; then
echo -e "\n${highlight_color}VirtualBox version ${vbox_version} detected.${default_color} Please see the following"
echo -ne "URL for issues with the VISO filesystem on VirtualBox 5.2 to 5.2.40:\n\n"
echo " https://github.com/myspaghetti/macos-guest-virtualbox/issues/86"
echo -ne "\n${highlight_color}Press enter to continue, CTRL-C to exit.${default_color}"
clear_input_buffer_then_read
fi
# Oracle VM VirtualBox Extension Pack
extpacks="$(VBoxManage list extpacks 2>/dev/null)"
if [[ "$(expr match "${extpacks}" '.*Oracle VM VirtualBox Extension Pack')" -le "0" ||
"$(expr match "${extpacks}" '.*Usable:[[:blank:]]*false')" -gt "0" ]]; then
echo "Please make sure Oracle VM VirtualBox Extension Pack is installed, and that"
echo "all installed VirtualBox extensions are listed as usable when"
echo "running the command \"VBoxManage list extpacks\""
exit
fi
# dmg2img
if [[ -z "$(dmg2img -d 2>/dev/null)" ]]; then
if [[ -z "$(cygcheck -V 2>/dev/null)" ]]; then
echo "Please install the package dmg2img."
exit
elif [[ -z "$("${PWD}/dmg2img.exe" -d 2>/dev/null)" ]]; then
echo "Locally installing dmg2img"
wget "http://vu1tur.eu.org/tools/dmg2img-1.6.6-win32.zip" \
${wgetargs} \
--output-document="dmg2img-1.6.6-win32.zip"
if [[ ! -s dmg2img-1.6.6-win32.zip ]]; then
echo "Error downloading dmg2img. Please provide the package manually."
exit
fi
unzip -oj "dmg2img-1.6.6-win32.zip" "dmg2img.exe"
rm "dmg2img-1.6.6-win32.zip"
chmod +x "dmg2img.exe"
fi
fi
# set Apple software update catalog URL according to macOS version
HighSierra_sucatalog='https://swscan.apple.com/content/catalogs/others/index-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog'
Mojave_sucatalog='https://swscan.apple.com/content/catalogs/others/index-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog'
Catalina_sucatalog='https://swscan.apple.com/content/catalogs/others/index-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog'
if [[ "${macOS_release_name:0:1}" =~ [Cc] ]]; then
macOS_release_name="Catalina"
CFBundleShortVersionString="10.15"
sucatalog="${Catalina_sucatalog}"
if [[ ! ( "${vbox_version:0:1}" -gt 6 ||
"${vbox_version}" =~ ^6\.1\.[4-9] ||
"${vbox_version}" =~ ^6\.1\.[123][0-9] ||
"${vbox_version}" =~ ^6\.[2-9] ) ]]; then
echo -e "\nmacOS Catalina requires VirtualBox version 6.1.4 or higher."
echo "Exiting."
exit
fi
elif [[ "${macOS_release_name:0:1}" =~ [Hh] ]]; then
macOS_release_name="HighSierra"
CFBundleShortVersionString="10.13"
sucatalog="${HighSierra_sucatalog}"
else
macOS_release_name="Mojave"
CFBundleShortVersionString="10.14"
sucatalog="${Mojave_sucatalog}"
fi
print_dimly "${macOS_release_name} selected to be downloaded and installed"
}
# Done with dependencies
function prompt_delete_existing_vm() {
print_dimly "stage: prompt_delete_existing_vm"
if [[ -n "$(VBoxManage showvminfo "${vm_name}" 2>/dev/null)" ]]; then
echo -e "\nA virtual machine named \"${vm_name}\" already exists."
echo -ne "${warning_color}Delete existing virtual machine \"${vm_name}\"?${default_color}"
prompt_delete_y_n
if [[ "${delete}" == "y" ]]; then
echo "Deleting ${vm_name} virtual machine."
VBoxManage unregistervm "${vm_name}" --delete
else
echo -e "\n${highlight_color}Please assign a different VM name to variable \"vm_name\" by editing the script,${default_color}"
echo "or skip this check manually as described when running the following command:"
would_you_like_to_know_less
exit
fi
fi
}
# Attempt to create new virtual machine named "${vm_name}"
function create_vm() {
print_dimly "stage: create_vm"
if [[ -n "$( VBoxManage createvm --name "${vm_name}" --ostype "MacOS1013_64" --register 2>&1 >/dev/null )" ]]; then
echo -e "\nError: Could not create virtual machine \"${vm_name}\"."
echo -e "${highlight_color}Please delete exising \"${vm_name}\" VirtualBox configuration files ${warning_color}manually${default_color}.\n"
echo -e "Error message:\n"
VBoxManage createvm --name "${vm_name}" --ostype "MacOS1013_64" --register 2>/dev/tty
exit
fi
}
function check_default_virtual_machine() {
print_dimly "stage: check_default_virtual_machine"
echo -e "\nChecking that VirtualBox starts the virtual machine without errors."
if [[ -n $(VBoxManage startvm "${vm_name}" 2>&1 1>/dev/null) ]]; then
echo -e "Error while starting the virtual machine.\nExiting."
exit
fi
VBoxManage controlvm "${vm_name}" poweroff 2>/dev/null
echo -e "\nChecking that VirtualBox runs with hardware-supported virtualization."
vbox_log="$(VBoxManage showvminfo "${vm_name}" --log 0)"
# if [[ "${vbox_log}" =~ '.*Attempting fall back to NEM.*' ]]; then
regex='.*Attempting fall back to NEM.*' # for zsh compatibility
if [[ "${vbox_log}" =~ ${regex} ]]; then
echo -e "\nVirtualbox is running without hardware-supported virtualization features."
if [[ -n "$(cygcheck -V 2>/dev/null)" ||
"$(cat /proc/sys/kernel/osrelease 2>/dev/null)" =~ [Mm]icrosoft ]]; then
echo "Check that software such as Hyper-V, Windows Sandbox, WSL2, memory integrity"
echo "protection, and other Windows features that lock virtualization are turned off."
fi
echo "Exiting."
exit
fi
}
function prepare_macos_installation_files() {
print_dimly "stage: prepare_macos_installation_files"
# Find the correct download URL in the Apple catalog
echo -e "\nDownloading Apple macOS ${macOS_release_name} software update catalog"
wget "${sucatalog}" \
${wgetargs} \
--output-document="${macOS_release_name}_sucatalog"
# if file was not downloaded correctly
if [[ ! -s "${macOS_release_name}_sucatalog" ]]; then
wget --debug -O /dev/null -o "${macOS_release_name}_wget.log" "${sucatalog}"
echo -e "\nCouldn't download the Apple software update catalog."
if [[ "$(expr match "$(cat "${macOS_release_name}_wget.log")" '.*ERROR[[:print:]]*is not trusted')" -gt "0" ]]; then
echo -e "\nMake sure certificates from a certificate authority are installed."
echo "Certificates are often installed through the package manager with"
echo "a package named ${highlight_color}ca-certificates${default_color}"
fi
echo "Exiting."
exit
fi
echo "Trying to find macOS ${macOS_release_name} InstallAssistant download URL"
tac "${macOS_release_name}_sucatalog" | csplit - '/InstallAssistantAuto.smd/+1' '{*}' -f "${macOS_release_name}_sucatalog_" -s
for catalog in "${macOS_release_name}_sucatalog_"* "error"; do
if [[ "${catalog}" == error ]]; then
rm "${macOS_release_name}_sucatalog"*
echo "Couldn't find the requested download URL in the Apple catalog. Exiting."
exit
fi
urlbase="$(tail -n 1 "${catalog}" 2>/dev/null)"
urlbase="$(expr match "${urlbase}" '.*\(http://[^<]*/\)')"
wget "${urlbase}InstallAssistantAuto.smd" \
${wgetargs} \
--output-document="${catalog}_InstallAssistantAuto.smd"
found_version="$(head -n 6 "${catalog}_InstallAssistantAuto.smd" | tail -n 1)"
if [[ "${found_version}" == *${CFBundleShortVersionString}* ]]; then
echo -e "Found download URL: ${urlbase}\n"
rm "${macOS_release_name}_sucatalog"*
break
fi
done
echo "Downloading macOS installation files from swcdn.apple.com"
for filename in "BaseSystem.chunklist" \
"InstallInfo.plist" \
"AppleDiagnostics.dmg" \
"AppleDiagnostics.chunklist" \
"BaseSystem.dmg" \
"InstallESDDmg.pkg"; \
do wget "${urlbase}${filename}" \
${wgetargs} \
--output-document "${macOS_release_name}_${filename}"
done
echo -e "\nSplitting the several-GB InstallESDDmg.pkg into 1GB parts because"
echo "VirtualBox hasn't implemented UDF/HFS VISO support yet and macOS"
echo "doesn't support ISO 9660 Level 3 with files larger than 2GB."
split --verbose -a 2 -d -b 1000000000 "${macOS_release_name}_InstallESDDmg.pkg" "${macOS_release_name}_InstallESD.part"
if [[ ! -s "ApfsDriverLoader.efi" ]]; then
echo -e "\nDownloading open-source APFS EFI drivers used for VirtualBox 6.0 and 5.2"
[[ "${vbox_version:0:1}" -gt 6 || ( "${vbox_version:0:1}" = 6 && "${vbox_version:2:1}" -ge 1 ) ]] && echo "...even though VirtualBox version 6.1 or higher is detected."
wget 'https://github.com/acidanthera/AppleSupportPkg/releases/download/2.0.4/AppleSupport-v2.0.4-RELEASE.zip' \
${wgetargs} \
--output-document 'AppleSupport-v2.0.4-RELEASE.zip'
unzip -oj 'AppleSupport-v2.0.4-RELEASE.zip'
fi
}
function create_nvram_files() {
print_dimly "stage: create_nvram_files"
# Each NVRAM file may contain multiple entries.
# Each entry contains a namesize, datasize, name, guid, attributes, and data.
# Each entry is immediately followed by a crc32 of the entry.
# The script creates each file with only one entry for easier editing.
#
# The hex strings are stripped by xxd, so they can
# look like "0xAB 0xCD" or "hAB hCD" or "AB CD" or "ABCD" or a mix of formats
# and have extraneous characters like spaces or minus signs.
# Load the binary files into VirtualBox VM NVRAM with the builtin command dmpstore
# in the VM EFI Internal Shell, for example:
# dmpstore -all -l fs0:\system-id.bin
#
# DmpStore code is available at this URL:
# https://github.com/mdaniel/virtualbox-org-svn-vbox-trunk/blob/master/src/VBox/Devices/EFI/Firmware/ShellPkg/Library/UefiShellDebug1CommandsLib/DmpStore.c
function generate_nvram_bin_file() {
# input: name data guid (three positional arguments, all required)
# output: function outputs nothing to stdout
# but writes a binary file to working directory
local namestring="${1}" # string of chars
local filename="${namestring}"
# represent string as string-of-hex-bytes, add null byte after every byte,
# terminate string with two null bytes
local name="$( for (( i = 0 ; i < ${#namestring} ; i++ )); do printf -- "${namestring:${i}:1}" | xxd -p | tr -d '\n'; printf '00'; done; printf '0000' )"
# size of string in bytes, represented by eight hex digits, big-endian
local namesize="$(printf "%08x" $(( ${#name} / 2 )) )"
# flip four big-endian bytes byte-order to little-endian
local namesize="$(printf "${namesize}" | xxd -r -p | od -tx4 -N4 -An --endian=little)"
# strip string-of-hex-bytes representation of data of spaces, "x", "h", etc
local data="$(printf -- "${2}" | xxd -r -p | xxd -p)"
# size of data in bytes, represented by eight hex digits, big-endian
local datasize="$(printf "%08x" $(( ${#data} / 2 )) )"
# flip four big-endian bytes byte-order to little-endian
local datasize="$(printf "${datasize}" | xxd -r -p | od -tx4 -N4 -An --endian=little)"
# guid string-of-hex-bytes is five fields, 8+4+4+4+12 bytes long
# first three are little-endian, last two big-endian
# for example, 00112233-4455-6677-8899-AABBCCDDEEFF
# is stored as 33221100-5544-7766-8899-AABBCCDDEEFF
local g="$( printf -- "${3}" | xxd -r -p | xxd -p )" # strip spaces etc
local guid="${g:6:2} ${g:4:2} ${g:2:2} ${g:0:2} ${g:10:2} ${g:8:2} ${g:14:2} ${g:12:2} ${g:16:16}"
# attributes in four bytes little-endian
local attributes="07 00 00 00"
# the data structure
local entry="${namesize} ${datasize} ${name} ${guid} ${attributes} ${data}"
# calculate crc32 using gzip, flip crc32 bytes into big-endian
local crc32="$(printf "${entry}" | xxd -r -p | gzip -c | tail -c8 | od -tx4 -N4 -An --endian=big)"
# save binary data
printf -- "${entry} ${crc32}" | xxd -r -p - "${vm_name}_${filename}.bin"
}
# MLB
MLB_b16="$(printf -- "${MLB}" | xxd -p)"
generate_nvram_bin_file MLB "${MLB_b16}" "4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14"
# ROM
# Convert the mixed-ASCII-and-base16 ROM value
# into an ASCII string that represents a base16 number.
ROM_b16="$(for (( i=0; i<${#ROM}; )); do
if [[ "${ROM:${i}:1}" == "%" ]]; then
let j=i+1
echo -n "${ROM:${j}:2}"
let i=i+3
else
x="$(echo -n "${ROM:${i}:1}" | od -t x1 -An | tr -d ' ')"
echo -n "${x}"
let i=i+1
fi
done)"
generate_nvram_bin_file ROM "${ROM_b16}" "4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14"
# system-id
generate_nvram_bin_file system-id "${SYSTEM_UUID}" "7C436110-AB2A-4BBB-A880-FE41995C9F82"
# SIP / csr-active-config
generate_nvram_bin_file csr-active-config "${SYSTEM_INTEGRITY_PROTECTION}" "7C436110-AB2A-4BBB-A880-FE41995C9F82"
}
function create_macos_installation_files_viso() {
print_dimly "stage: create_macos_installation_files_viso"
echo "Creating EFI startup script"
echo 'echo -off' > "${vm_name}_startup.nsh"
if [[ ( "${vbox_version:0:1}" -lt 6 ) || ( "${vbox_version:0:1}" = 6 && "${vbox_version:2:1}" = 0 ) ]]; then
echo 'load fs0:\EFI\OC\Drivers\AppleImageLoader.efi
load fs0:\EFI\OC\Drivers\AppleUiSupport.efi
load fs0:\EFI\OC\Drivers\ApfsDriverLoader.efi
map -r' >> "${vm_name}_startup.nsh"
fi
# EFI Internal Shell 2.1 (VBox 6.0) doesn't support for-loops that start with 0
echo 'if exist "fs0:\EFI\NVRAM\MLB.bin" then
dmpstore -all -l fs0:\EFI\NVRAM\MLB.bin
dmpstore -all -l fs0:\EFI\NVRAM\ROM.bin
dmpstore -all -l fs0:\EFI\NVRAM\csr-active-config.bin
dmpstore -all -l fs0:\EFI\NVRAM\system-id.bin
endif
for %a run (1 5)
if exist "fs%a:\EFI\NVRAM\MLB.bin" then
dmpstore -all -l fs%a:\EFI\NVRAM\MLB.bin
dmpstore -all -l fs%a:\EFI\NVRAM\ROM.bin
dmpstore -all -l fs%a:\EFI\NVRAM\csr-active-config.bin
dmpstore -all -l fs%a:\EFI\NVRAM\system-id.bin
endif
endfor
for %a run (1 5)
if exist "fs%a:\macOS Install Data\Locked Files\Boot Files\boot.efi" then
"fs%a:\macOS Install Data\Locked Files\Boot Files\boot.efi"
endif
endfor
for %a run (1 5)
if exist "fs%a:\System\Library\CoreServices\boot.efi" then
"fs%a:\System\Library\CoreServices\boot.efi"
endif
endfor' >> "${vm_name}_startup.nsh"
echo -e "\nCreating VirtualBox 6 virtual ISO containing the"
echo -e "installation files from swcdn.apple.com\n"
pseudouuid="$(od -tx -N16 /dev/urandom | xxd -r | xxd -p)"
pseudouuid="${pseudouuid:0:8}-${pseudouuid:8:4}-${pseudouuid:12:4}-${pseudouuid:16:4}-${pseudouuid:20:12}"
echo "--iprt-iso-maker-file-marker-bourne-sh ${pseudouuid}
--volume-id=${macOS_release_name:0:5}-files" > "${macOS_release_name}_Installation_files.viso"
# Apple macOS installation files
for filename in "BaseSystem.chunklist" \
"InstallInfo.plist" \
"AppleDiagnostics.dmg" \
"AppleDiagnostics.chunklist" \
"BaseSystem.dmg" ; do
if [[ -s "${macOS_release_name}_${filename}" ]]; then
echo "/${filename}=\"${macOS_release_name}_${filename}\"" >> "${macOS_release_name}_Installation_files.viso"
fi
done
if [[ -s "${macOS_release_name}_InstallESD.part00" ]]; then
for part in "${macOS_release_name}_InstallESD.part"*; do
echo "/InstallESD${part##*InstallESD}=\"${part}\"" >> "${macOS_release_name}_Installation_files.viso"
done
fi
# NVRAM binary files
for filename in "MLB.bin" "ROM.bin" "csr-active-config.bin" "system-id.bin"; do
if [[ -s "${vm_name}_${filename}" ]]; then
echo "/ESP/EFI/NVRAM/${filename}=\"${vm_name}_${filename}\"" >> "${macOS_release_name}_Installation_files.viso"
fi
done
# EFI drivers for VirtualBox 6.0 and 5.2
for filename in "ApfsDriverLoader.efi" "AppleImageLoader.efi" "AppleUiSupport.efi"; do
if [[ -s "${filename}" ]]; then
echo "/ESP/EFI/OC/Drivers/${filename}=\"${filename}\"" >> "${macOS_release_name}_Installation_files.viso"
fi
done
# EFI startup script
echo "/ESP/startup.nsh=\"${vm_name}_startup.nsh\"" >> "${macOS_release_name}_Installation_files.viso"
}
# Create the macOS base system virtual disk image
function create_basesystem_vdi() {
print_dimly "stage: create_basesystem_vdi"
if [[ -s "${macOS_release_name}_BaseSystem.vdi" ]]; then
echo "${macOS_release_name}_BaseSystem.vdi bootstrap virtual disk image exists."
elif [[ ! -s "${macOS_release_name}_BaseSystem.dmg" ]]; then
echo -e "\nCould not find ${macOS_release_name}_BaseSystem.dmg; exiting."
exit
else
local failed=''
echo "Converting BaseSystem.dmg to BaseSystem.img"
if [[ -n "$("${PWD}/dmg2img.exe" -d 2>/dev/null)" ]]; then
"${PWD}/dmg2img.exe" "${macOS_release_name}_BaseSystem.dmg" "${macOS_release_name}_BaseSystem.img" || local failed='failed'
else
dmg2img "${macOS_release_name}_BaseSystem.dmg" "${macOS_release_name}_BaseSystem.img" || local failed='failed'
fi
VBoxManage convertfromraw --format VDI "${macOS_release_name}_BaseSystem.img" "${macOS_release_name}_BaseSystem.vdi" || local failed='failed'
if [[ -n "${failed}" ]]; then
echo "Failed to create \"${macOS_release_name}_BaseSystem.vdi\"."
if [[ "$(cat /proc/sys/kernel/osrelease 2>/dev/null)" =~ [Mm]icrosoft ]]; then
echo -e "\nSome versions of WSL require the script to run on a Windows filesystem path,"
echo -e "for example ${highlight_color}/mnt/c/Users/Public/Documents${default_color}"
echo -e "Switch to a path on the Windows filesystem if VBoxManage.exe fails to"
echo -e "create or open a file.\n"
fi
echo "Exiting."
exit
else
rm "${macOS_release_name}_BaseSystem.img" 2>/dev/null
fi
fi
}
# Create the target virtual disk image
function create_target_vdi() {
print_dimly "stage: create_target_vdi"
if [[ -w "${vm_name}.vdi" ]]; then
echo "${vm_name}.vdi target system virtual disk image exists."
elif [[ "${macOS_release_name}" = "Catalina" && "${storage_size}" -lt 25000 ]]; then
echo "Attempting to install macOS Catalina on a disk smaller than 25000MB will fail."
echo "Please assign a larger virtual disk image size. Exiting."
exit
elif [[ "${storage_size}" -lt 22000 ]]; then
echo "Attempting to install macOS on a disk smaller than 22000MB will fail."
echo "Please assign a larger virtual disk image size. Exiting."
exit
else
echo "Creating ${vm_name} target system virtual disk image."
VBoxManage createmedium --size="${storage_size}" \
--filename "${vm_name}.vdi" \
--variant standard 2>/dev/tty
fi
}
# Create the installation media virtual disk image
function create_install_vdi() {
print_dimly "stage: create_install_vdi"
if [[ -w "Install ${macOS_release_name}.vdi" ]]; then
echo "\"Install ${macOS_release_name}.vdi\" virtual disk image exists."
echo -ne "${warning_color}Delete \"Install ${macOS_release_name}.vdi\"?${default_color}"
prompt_delete_y_n
if [[ "${delete}" == "y" ]]; then
if [[ "$( VBoxManage list runningvms )" =~ \""${vm_name}"\" ]]
then
echo "\"Install ${macOS_release_name}.vdi\" may be deleted"
echo "only when the virtual machine is powered off."
echo "Exiting."
exit
else
VBoxManage storagectl "${vm_name}" --remove --name SATA >/dev/null 2>&1
VBoxManage closemedium "Install ${macOS_release_name}.vdi" >/dev/null 2>&1
rm "Install ${macOS_release_name}.vdi"
fi
fi
fi
if [[ ! -e "Install ${macOS_release_name}.vdi" ]]; then
echo "Creating ${macOS_release_name} installation media virtual disk image."
VBoxManage createmedium --size=12000 \
--filename "Install ${macOS_release_name}.vdi" \
--variant standard 2>/dev/tty
fi
}
function configure_vm() {
print_dimly "stage: configure_vm"
VBoxManage modifyvm "${vm_name}" --cpus "${cpu_count}" --memory "${memory_size}" \
--vram "${gpu_vram}" --pae on --boot1 none --boot2 none --boot3 none \
--boot4 none --firmware efi --rtcuseutc on --usbxhci on --chipset ich9 \
--mouse usbtablet --keyboard usb --audiocontroller hda --audiocodec stac9221
VBoxManage setextradata "${vm_name}" \
"VBoxInternal2/EfiGraphicsResolution" "${resolution}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiSystemFamily" "${DmiSystemFamily}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiSystemProduct" "${DmiSystemProduct}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiSystemSerial" "${DmiSystemSerial}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiSystemUuid" "${DmiSystemUuid}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiOEMVBoxVer" "${DmiOEMVBoxVer}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiOEMVBoxRev" "${DmiOEMVBoxRev}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiBIOSVersion" "${DmiBIOSVersion}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiBoardProduct" "${DmiBoardProduct}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiBoardSerial" "${DmiBoardSerial}"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiSystemVendor" "Apple Inc."
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/efi/0/Config/DmiSystemVersion" "1.0"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/smc/0/Config/DeviceKey" \
"ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"
VBoxManage setextradata "${vm_name}" \
"VBoxInternal/Devices/smc/0/Config/GetKeyFromRealSMC" 0
}
function populate_virtual_disks() {
print_dimly "stage: populate_virtual_disks"
# Attach virtual disk images of the base system, installation, and target
# to the virtual machine
VBoxManage storagectl "${vm_name}" --remove --name SATA >/dev/null 2>&1
if [[ -n $(
2>&1 VBoxManage storagectl "${vm_name}" --add sata --name SATA --hostiocache on >/dev/null
) ]]; then
echo "Could not configure virtual machine storage controller. Exiting."; exit
fi
if [[ -n $(
2>&1 VBoxManage storageattach "${vm_name}" --storagectl SATA --port 0 \
--type hdd --nonrotational on --medium "${vm_name}.vdi" >/dev/null
) ]]; then
echo "Could not attach \"${vm_name}.vdi\". Exiting."; exit
fi
if [[ -n $(
2>&1 VBoxManage storageattach "${vm_name}" --storagectl SATA --port 1 --hotpluggable on \
--type hdd --nonrotational on --medium "Install ${macOS_release_name}.vdi" >/dev/null
) ]]; then
echo "Could not attach \"Install ${macOS_release_name}.vdi\". Exiting."; exit
fi
if [[ -n $(
2>&1 VBoxManage storageattach "${vm_name}" --storagectl SATA --port 2 --hotpluggable on \
--type hdd --nonrotational on --medium "${macOS_release_name}_BaseSystem.vdi" >/dev/null
) ]]; then
echo "Could not attach \"${macOS_release_name}_BaseSystem.vdi\". Exiting."; exit
fi
if [[ -n $(
2>&1 VBoxManage storageattach "${vm_name}" --storagectl SATA --port 3 \
--type dvddrive --medium "${macOS_release_name}_Installation_files.viso" >/dev/null
) ]]; then
echo "Could not attach \"${macOS_release_name}_Installation_files.viso\". Exiting."; exit
fi
echo "Starting virtual machine \"${vm_name}\".
This should take a couple of minutes. If booting fails, see the documentation
for information about applying different CPU profiles."
( VBoxManage startvm "${vm_name}" >/dev/null 2>&1 )
echo -e "\nWhile the script is running, please do not interact with the virtual machine."
[[ -z "${kscd}" ]] && declare_scancode_dict
prompt_lang_utils
prompt_terminal_ready
print_dimly "Please wait"
# Assigning "physical" disks from largest to smallest to "${disks[]}" array
# Partitining largest disk as APFS
# Partition second-largest disk as JHFS+
kbstring='disks="$(diskutil list | grep -o "\*[0-9][^ ]* GB *disk[0-9]$" | grep -o "[0-9].*" | sort -gr | grep -o disk[0-9] )" && '\
'disks=(${disks[@]}) && '\
'if [ -z "${disks}" ]; then echo "Could not find disks"; fi && '\
'[ -n "${disks[0]}" ] && '\
'diskutil partitionDisk "/dev/${disks[0]}" 1 GPT APFS "'"${vm_name}"'" R && '\
'diskutil partitionDisk "/dev/${disks[1]}" 1 GPT JHFS+ "Install" R && '
send_keys
# Create secondary base system on the Install disk
# and copy macOS install app files to the app directory
kbstring='asr restore --source "/Volumes/'"${macOS_release_name:0:5}-files"'/BaseSystem.dmg" --target /Volumes/Install --erase --noprompt && '\
'app_path="$(ls -d "/Volumes/"*"Base System 1/Install"*.app)" && '\
'install_path="${app_path}/Contents/SharedSupport/" && '\
'mkdir -p "${install_path}" && cd "/Volumes/'"${macOS_release_name:0:5}-files/"'" && '\
'cp *.chunklist *.plist *.dmg "${install_path}" && '\
'echo "" && echo "Copying the several-GB InstallESD.dmg to the installer app directory" && echo "Please wait" && '\
'if [ -s "${install_path}/InstallESD.dmg" ]; then '\
'rm -f "${install_path}/InstallESD.dmg" ; fi && '\
'for part in InstallESD.part*; do echo "Concatenating ${part}"; cat "${part}" >> "${install_path}/InstallESD.dmg"; done && '\
'sed -i.bak -e "s/InstallESDDmg\.pkg/InstallESD.dmg/" -e "s/pkg\.InstallESDDmg/dmg.InstallESD/" "${install_path}InstallInfo.plist" && '\
'sed -i.bak2 -e "/InstallESD\.dmg/{n;N;N;N;d;}" "${install_path}InstallInfo.plist" && '
send_keys
# shut down the virtual machine
kbstring='shutdown -h now'
send_keys
send_enter
echo "Partitioning the target virtual disk and the installer virtual disk.
Loading base system onto the installer virtual disk. Moving installation
files to installer virtual disk, updating InstallInfo.plist, and rebooting the
virtual machine.
The virtual machine may report that disk space is critically low; this is fine.
When the installer virtual disk is finished being populated, the script will
shut down the virtual machine. After shutdown, the initial base system will be
detached from the VM and released from VirtualBox."
print_dimly "If the partitioning fails, exit the script by pressing CTRL-C
Otherwise, please wait."
# Detach the original 2GB BaseSystem.vdi
while [[ "$( VBoxManage list runningvms )" =~ \""${vm_name}"\" ]]; do sleep 2 >/dev/null 2>&1; done
# Release basesystem vdi from VirtualBox configuration
VBoxManage storageattach "${vm_name}" --storagectl SATA --port 2 --medium none >/dev/null 2>&1
VBoxManage closemedium "${macOS_release_name}_BaseSystem.vdi" >/dev/null 2>&1
echo " ${macOS_release_name}_BaseSystem.vdi successfully detached from"
echo "the virtual machine and released from VirtualBox Manager."
sleep 3
}
function populate_macos_target() {
print_dimly "stage: populate_macos_target"
if [[ "$( VBoxManage list runningvms )" =~ \""${vm_name}"\" ]]; then
echo -e "${highlight_color}Please ${warning_color}manually${highlight_color} shut down the virtual machine and press enter to continue.${default_color}"
clear_input_buffer_then_read
fi
VBoxManage storagectl "${vm_name}" --remove --name SATA >/dev/null 2>&1
if [[ -n $(
2>&1 VBoxManage storagectl "${vm_name}" --add sata --name SATA --hostiocache on >/dev/null
) ]]; then
echo "Could not configure virtual machine storage controller. Exiting."; exit
fi
if [[ -n $(
2>&1 VBoxManage storageattach "${vm_name}" --storagectl SATA --port 0 \
--type hdd --nonrotational on --medium "${vm_name}.vdi" >/dev/null
) ]]; then
echo "Could not attach \"${vm_name}.vdi\". Exiting."; exit
fi
if [[ -n $(
2>&1 VBoxManage storageattach "${vm_name}" --storagectl SATA --port 1 --hotpluggable on \
--type hdd --nonrotational on --medium "Install ${macOS_release_name}.vdi" >/dev/null
) ]]; then
echo "Could not attach \"Install ${macOS_release_name}.vdi\". Exiting."; exit
fi
if [[ -n $(
2>&1 VBoxManage storageattach "${vm_name}" --storagectl SATA --port 2 \
--type dvddrive --medium "${macOS_release_name}_Installation_files.viso" >/dev/null
) ]]; then
echo "Could not attach \"${macOS_release_name}_Installation_files.viso\". Exiting."; exit
fi
echo "The VM will boot from the populated installer base system virtual disk."
( VBoxManage startvm "${vm_name}" >/dev/null 2>&1 )
[[ -z "${kscd}" ]] && declare_scancode_dict
prompt_lang_utils
prompt_terminal_ready
add_another_terminal
echo -e "\nThe second open Terminal in the virtual machine copies EFI and NVRAM files"
echo -e "to the target EFI system partition when the installer finishes preparing."
echo -e "\nAfter the installer finishes preparing and the EFI and NVRAM files are copied,"
echo -ne "macOS will install and run when booting the target disk.\n\n"
# run script concurrently, catch SIGUSR1 when installer finishes preparing
kbstring='disks="$(diskutil list | grep -o "[0-9][^ ]* GB *disk[0-9]$" | sort -gr | grep -o disk[0-9])" && '\
'disks=(${disks[@]}) && '\
'printf '"'"'trap "exit 0" SIGUSR1; while true; do sleep 10; done;'"'"' | sh && '\
'mkdir -p "/Volumes/'"${vm_name}"'/tmp/mount_efi" && '\
'mount_msdos /dev/${disks[0]}s1 "/Volumes/'"${vm_name}"'/tmp/mount_efi" && '\
'cp -r "/Volumes/'"${macOS_release_name:0:5}-files"'/ESP/"* "/Volumes/'"${vm_name}"'/tmp/mount_efi/" && '\
'installer_pid=$(ps | grep startosinstall | grep -v grep | cut -d '"'"' '"'"' -f 3) && '\
'kill -SIGUSR1 ${installer_pid}'
send_keys
send_enter
sleep 1
cycle_through_terminal_windows
# Find background process PID, then
# start the installer, send SIGUSR1 to concurrent bash script,
# the other script copies files to EFI system partition,
# then sends SIGUSR1 to the installer which restarts the virtual machine
kbstring='background_pid="$(ps | grep '"'"' sh$'"'"' | cut -d '"'"' '"'"' -f 3)" && '\
'app_path="$(ls -d /Install*.app)" && '\
'cd "/${app_path}/Contents/Resources/" && '\
'./startosinstall --agreetolicense --pidtosignal ${background_pid} --rebootdelay 500 --volume "/Volumes/'"${vm_name}"'"'
send_keys
send_enter
if [[ ! ( "${vbox_version:0:1}" -gt 6
|| ( "${vbox_version:0:1}" = 6 && "${vbox_version:2:1}" -ge 1 ) ) ]]; then
echo -e "${highlight_color}When the installer finishes preparing and reboots the VM, press enter${default_color} so the script
powers off the virtual machine and detaches the device \"Install ${macOS_release_name}.vdi\" to avoid
booting into the initial installer environment again."
clear_input_buffer_then_read
VBoxManage controlvm "${vm_name}" poweroff >/dev/null 2>&1
for (( i=10; i>5; i-- )); do echo -e " \r${i}"; sleep 0.5; done
VBoxManage storagectl "${vm_name}" --remove --name SATA >/dev/null 2>&1
VBoxManage storagectl "${vm_name}" --add sata --name SATA --hostiocache on >/dev/null 2>&1
VBoxManage storageattach "${vm_name}" --storagectl SATA --port 0 \
--type hdd --nonrotational on --medium "${vm_name}.vdi"
echo ""
for (( i=5; i>0; i-- )); do echo -e " \r${i}"; sleep 0.5; done
fi
echo -e "For further information, such as applying EFI and NVRAM variables to enable
iMessage connectivity, see the documentation with the following command:\n\n"
would_you_like_to_know_less
echo -e "\n${highlight_color}That's it! Enjoy your virtual machine.${default_color}\n"
}
function delete_temporary_files() {
print_dimly "stage: delete_temporary_files"
if [[ ! "$(VBoxManage showvminfo "${vm_name}")" =~ State:[\ \t]*powered\ off ]]
then
echo -e "Temporary files may be deleted when the virtual machine is powered off
and without a suspended state by running the following command at the script's
working directory:
${highlight_color}${0} delete_temporary_files${default_color}"
else
# detach temporary VDIs and attach the macOS target disk
VBoxManage storagectl "${vm_name}" --remove --name SATA >/dev/null 2>&1
VBoxManage storagectl "${vm_name}" --add sata --name SATA --hostiocache on >/dev/null 2>&1
if [[ -s "${vm_name}.vdi" ]]; then
VBoxManage storageattach "${vm_name}" --storagectl SATA --port 0 \
--type hdd --nonrotational on --medium "${vm_name}.vdi"
fi
VBoxManage closemedium "Install ${macOS_release_name}.vdi" >/dev/null 2>&1
VBoxManage closemedium "${macOS_release_name}_BaseSystem.vdi" >/dev/null 2>&1
echo -e "The following temporary files are safe to delete:\n"
temporary_files=("${macOS_release_name}_Apple"*
"${macOS_release_name}_BaseSystem"*
"${macOS_release_name}_Install"*
"Install ${macOS_release_name}.vdi"
"${vm_name}_"*".bin"
"${vm_name}_"*".txt"
"${vm_name}_startup.nsh"
"ApfsDriverLoader.efi"
"Apple"*".efi"
"AppleSupport-v2.0.4-RELEASE.zip"
"dmg2img.exe")
ls -d "${temporary_files[@]}" 2>/dev/null
echo -e "\n${warning_color}Delete temporary files listed above?${default_color}"
prompt_delete_y_n
if [[ "${delete}" == "y" ]]; then
rm -f "${temporary_files[@]}" 2>/dev/null
fi
fi
}
function documentation() {
low_contrast_stages=""
for stage in ${stages}; do
low_contrast_stages="${low_contrast_stages}"' '"${low_contrast_color}${stage}${default_color}"$'\n'
done
echo -ne "\n ${highlight_color}NAME${default_color}
Push-button installer of macOS on VirtualBox
${highlight_color}DESCRIPTION${default_color}
The script downloads macOS High Sierra, Mojave, and Catalina from Apple servers
and installs them on VirtualBox 5.2, 6.0, and 6.1. The script doesn't install
any closed-source additions or bootloaders. A default install requires the user
press enter when prompted, less than ten times, to complete the installation.
${highlight_color}USAGE${default_color}
${low_contrast_color}${0} [STAGE]... ${default_color}
The installation is divided into stages. Stage titles may be given as command-
line arguments for the script. When the script is run with no command-line
arguments, each of the stages is performed in succession in the order listed:
${low_contrast_stages}
Other than the stages above, the command-line arguments \"${low_contrast_color}documentation${default_color}\" and
\"${low_contrast_color}troubleshoot${default_color}\" are available. \"${low_contrast_color}troubleshoot${default_color}\" outputs system information,
VirtualBox logs, and checksums for some installation files. \"${low_contrast_color}documentation${default_color}\"
outputs the script's documentation. If \"${low_contrast_color}documentation${default_color}\" is the first argument,
no other arguments are parsed.
The stage \"${low_contrast_color}check_shell${default_color}\" is always performed when the script loads.
The stages \"${low_contrast_color}check_gnu_coreutils_prefix${default_color}\", \"${low_contrast_color}set_variables${default_color}\", and
\"${low_contrast_color}check_dependencies${default_color}\" are always performed when any stage title other than
\"${low_contrast_color}documentation${default_color}\" is specified as the first argument, and the rest of the
specified stages are performed only after the checks pass.