dakanji · February 24, 2025 17:21 · johnpitchko · Dec 27, 2023 · startergo · Jan 26, 2024
diff --git a/Install_USB_Maker.sh b/Install_USB_Maker.sh
 #!/usr/bin/env bash

 # Install_USB_Maker.sh
 # Copyright (c) 2020 - 2025 Dayo Akanji
 # - [email protected]
 # Portions Copyright (c) Jeff Geerling
 # - https://github.com/geerlingguy/macos-virtualbox-vm/blob/master/LICENSE
 #
 # MIT License

 # Derived from:
 #    * https://apple.stackexchange.com/a/389830
 #    * https://github.com/geerlingguy/macos-virtualbox-vm/blob/master/prepare-iso.sh
 #
 # 1. Download Lion to Monterey (Excluding Mavericks)
 #    * From    : https://support.apple.com/HT211683 (Lion to Sierra or Links to App Store)
 #    *         : https://github.com/corpnewt/gibMacOS (High Sierra to Monterey)
 # 2. Use Disk Utility to format a USB stick partition:
 #    * Name    : USB_Maker
 #    * Size    : Easiest to assume 16 GB but see details below:
 #    *         : 08 GB (Min) For Lion to Sierra (if via Install DMG)
 #    *         : 16 GB (Min) For Yosemite to Sierra (if via Installer App)
 #    *         : 16 GB (Min) For High Sierra to Monterey (Always Installer App)
 #    * Format  : Mac OS Extended Journaled (HFS+)
 # 3. Make the downloaded "Install" package available to this script:
 #    * For Lion to Sierra:
 #    *     Run the the downloaded "Install DMG" file to mount it
 #    * For High Sierra to Monterey
 #    *  or Yosemite to Sierra if using "Install App":
 #    *     Place the install app in the 'Applications' folder
 #    *     This can be done manually or by running the downloaded package
 #    *     Placing manually in the folder containing this script also works
 #    *     Installer Apps in the folder containing this script take precedence
 # 4. Make this script executable and run it in Terminal:
 #    * Unzip the package to show the script file in Finder
 #    * Type  "chmod +x" without quotes, add a space, then drag the script file from Finder unto Terminal and press "Enter"
 #    * Type  "sh" without quotes, add a space, then drag the script file from Finder unto Terminal again and press "Enter"
 # 5. Install Mac OS with the USB Installer once done
 #    * Name    : Install_{{MAC_OS_NAME}}

 ## CUSTOM COLOURS ##
 msg_status() {
    printf "\033[0;35m$1\033[0m\n"
 }
 msg_info() {
    printf "\033[0;33m$1\033[0m\n"
 }
 msg_error() {
    printf "\033[0;31m$1\033[0m\n"
 }

 enter_msg() {
    one=${1:-SkipNb}
    two=${2:-SkipAs}

    if [ "${two}" != 'WithAs' ] ; then
        if [ "${one}" != 'WithNb' ] ; then
            msg_info '    Type password and press "Enter" if prompted'
        else
            msg_info 'NB: Type password and press "Enter" if prompted'
        fi
    else
        if [ "${one}" != 'WithNb' ] ; then
            msg_info '    Type password as prompted and press "Enter"'
        else
            msg_info 'NB: Type password as prompted and press "Enter"'
        fi
    fi

    msg_info '    Your password is not displayed while typing'
 }

 chill_msg() {
    msg_info 'NB: Patience ... This takes a while to complete'
    enter_msg ;
 }

 # createISO by Jeff Geerling as modified by Dayo Akanji
 # This function creates the ISO image.
 # Inputs:  $1 = The name of the installer - located in Applications folder or local folder/PATH.
 function createISO() {
    local error
    local isoName
    local InstallAppVol
    local SparseImageFile
    local installerAppName
    local InstallAppBaseSystem

    if [ -e "${SCRIPT_DIR}/${1}" ] ; then
        installerAppName="${SCRIPT_DIR}/${1}"
    elif [ -e "/Applications/${1}" ] ; then
        installerAppName="/Applications/${1}"
    else
        echo && echo
        msg_info 'ERROR!!'
        msg_error 'Could Not Find Installer App'
        runExit 'Error' ;
    fi

    # Remove Spaces in 'INSTALL_NAME' and use as ISO name
    isoName=$( echo "${INSTALL_NAME}" | sed 's/ //g' )
    error=0
    SparseImageFile="${INSTALL_TEMP}/${isoName}.sparseimage"
    InstallAppVol='/Volumes/install_app'
    InstallAppBaseSystem="${installerAppName}/Contents/SharedSupport/BaseSystem"

    sudo -v
    msg_info "Using Installer App:- '${installerAppName}'"
    msg_status 'STEP 01 of 13: Create a Blank 16GB Single Partition Apple Partition Map ISO Image'
    # Create INSTALL_TEMP folder
    mkdir -p "${INSTALL_TEMP}"
    # Just in case - delete any previous sparseimage
    [ -e "${SparseImageFile}" ] && rm -f "${SparseImageFile}"
    # increased size to 16G - 8G is too small for Catalina
    hdiutil create -o "${INSTALL_TEMP}/${isoName}" -size 16g -layout SPUD -fs HFS+J -type SPARSE

    sudo -v && echo
    msg_status 'STEP 02 of 13: Mount Installer Image'
    if [ "${isoName}" == 'Monterey' ] || [ "${isoName}" == 'BigSur' ] ; then
        hdiutil attach "${SparseImageFile}" -noverify -nobrowse -mountpoint  "${InstallAppVol}"
    elif [ -e "${installerAppName}" ] ; then
        hdiutil attach "${installerAppName}/Contents/SharedSupport/InstallESD.dmg" -noverify -nobrowse -mountpoint  "${InstallAppVol}"
        error=$?
    else
        error=999
    fi

    if [ ${error} -ne 0 ] ; then
        echo && echo
        msg_info 'ERROR!!'
        msg_error "Failed to mount the InstallESD.dmg from the installer at ${installerAppName}"
        msg_error "Exiting on 'Error Code: ${error}'"
        runExit 'Error' ;
    fi

    sudo -v && echo
    msg_status 'STEP 03 of 13: Mount Sparse Bundle for Package Addition'
    if [ "${isoName}" == 'Monterey' ] || [ "${isoName}" == 'BigSur' ] ; then
        echo "N/A ... Skipped for ${INSTALL_NAME}"
    else
        hdiutil attach "${SparseImageFile}" -noverify -nobrowse -mountpoint '/Volumes/install_build'
    fi

    sudo -v && echo
    msg_status 'STEP 04 of 13: Restore Base System into '${isoName}' ISO Image'
    if [ "${isoName}" == 'Monterey' ] || [ "${isoName}" == 'BigSur' ] ; then
        echo "N/A ... Skipped for ${INSTALL_NAME}"
    elif [ "${isoName}" == 'Catalina' ] || [ "${isoName}" == 'Mojave' ] || [ "${isoName}" == 'HighSierra' ] ; then
        # Note by Jeff Geerling:
        # The asr command below returns an error.
        # I disabled SIP and the error still occurs.
        # This was reported in Issue #73 for Mojave.
        # Added '|| true' to prevent the script from exiting.
        # The steps that follow still seem to work for Catalina.
        sudo asr restore -source  "${InstallAppBaseSystem}.dmg" -target '/Volumes/install_build' -noprompt -noverify -erase  || true
    else
        sudo asr restore -source  "${InstallAppVol}/BaseSystem.dmg" -target '/Volumes/install_build' -noprompt -noverify -erase
    fi

    sudo -v && echo
    msg_status 'STEP 05 of 13: Remove Package Link and Replace with Actual Files'
    chill_msg ;
    if [ "${isoName}" == 'Monterey' ] || [ "${isoName}" == 'BigSur' ] ; then
        echo "N/A ... Skipped for ${INSTALL_NAME}"
    elif [ "${isoName}" == 'Catalina' ] || [ "${isoName}" == 'Mojave' ] || [ "${isoName}" == 'HighSierra' ] ; then
        ditto -V  "${InstallAppVol}/Packages" "${VOL_BASE_DIR}/System/Installation/"
    else
        rm -v "${VOL_BASE_DIR}/System/Installation/Packages"
        cp -rpv "${InstallAppVol}/Packages" "${VOL_BASE_DIR}/System/Installation/"
    fi

    sudo -v && echo
    msg_status "STEP 06 of 13: Copy '${INSTALL_TARGET}' Dependencies"
    enter_msg 'WithNb' ;
    sudo -v
    if [ "${isoName}" == 'Monterey' ] || [ "${isoName}" == 'BigSur' ] ; then
        CurrentMacOS=$(sw_vers -productVersion | cut -f 1 -d .)
        if [ "${CurrentMacOS}" -gt 10 ] ; then
            PostSierra='True'
        elif [ "${CurrentMacOS}" -eq 10 ] ; then
            CurrentMacOS=$(sw_vers -productVersion | cut -f 2 -d .)
            if [ "${CurrentMacOS}" -gt 12 ] ; then
                PostSierra='True'
            else
                PostSierra='False'
            fi
        else
            echo && echo
            msg_info 'ERROR!!'
            msg_error 'Invalid Mac OS Version'
            runExit 'Error' ;
        fi

        if [ "${PostSierra}" == 'True' ] ; then
            sudo "${installerAppName}/Contents/Resources/createinstallmedia" --volume "${InstallAppVol}" --nointeraction
        else
            sudo "${installerAppName}/Contents/Resources/createinstallmedia" --volume "${InstallAppVol}" --applicationpath "${installerAppName}"
        fi
    elif [ "${isoName}" == 'Catalina' ] || [ "${isoName}" == 'Mojave' ] || [ "${isoName}" == 'HighSierra' ] ; then
        ditto -V  "${InstallAppBaseSystem}.chunklist" "${VOL_BASE_SYS}.chunklist"
        ditto -V  "${InstallAppBaseSystem}.dmg" "${VOL_BASE_SYS}.dmg"
    else
        cp -rpv  "${InstallAppVol}/BaseSystem.chunklist" "${VOL_BASE_SYS}.chunklist"
        cp -rpv  "${InstallAppVol}/BaseSystem.dmg" "${VOL_BASE_SYS}.dmg"
    fi

    sudo -v && echo
    msg_status 'STEP 07 of 13: Unmount Installer Image'
    if [ "${isoName}" == 'Monterey' ] || [ "${isoName}" == 'BigSur' ] ; then
        hdiutil detach "/Volumes/Install macOS ${INSTALL_NAME}" -force # NOTE: force because "Resource busy"
    else
        hdiutil detach "${InstallAppVol}"
    fi

    sudo -v && echo
    msg_status 'STEP 08 of 13: Unmount Sparse Bundle'
    if [ "${isoName}" == 'Monterey' ] || [ "${isoName}" == 'BigSur' ] ; then
        echo "N/A ... Skipped for ${INSTALL_NAME}"
    else
        hdiutil detach "${VOL_BASE_DIR}/"
    fi

    sudo -v && echo
    msg_status "STEP 09 of 13: Resize '${isoName}' Sparse Bundle to Remove Free Space"
    hdiutil resize -size `hdiutil resize -limits "${SparseImageFile}" | tail -n 1 | awk '{ print $1 }'`b "${SparseImageFile}"
    echo "Resized '${isoName}' Sparse Bundle"

    sudo -v && echo
    msg_status "STEP 10 of 13: Convert '${isoName}' Sparse Bundle to ISO/CD Master"
    chill_msg ;
    hdiutil convert "${SparseImageFile}" -format UDTO -o "${INSTALL_TEMP}/${isoName}"
    sudo rm -vf "${SparseImageFile}"

    sudo -v && echo
    msg_status 'STEP 11 of 13: Convert ISO/CD Master to Regular Image'
    sudo rm -rf "${HOME}/Desktop/${INSTALL_TARGET}.iso" || true
    sudo mv -vf "${INSTALL_TEMP}/${isoName}.cdr" "${INSTALL_TEMP}/${INSTALL_TARGET}.iso"

    sudo -v && echo
    msg_status "STEP 12 of 13: Rename '${INSTALL_ID}'..."
    sudo diskutil rename "${INSTALL_ID}" "${INSTALL_TARGET}"

    sudo -v && echo
    msg_status 'STEP 13 of 13: Finishing'
    chill_msg ;
    sudo mv -vf "${INSTALL_TEMP}/${INSTALL_TARGET}.iso" "${HOME}/Desktop/${INSTALL_TARGET}.iso"
    sudo rm -rf "${INSTALL_TEMP}" || true
    echo 'Cleared Temp Files'

    echo && echo
    msg_info 'Complete'
    echo && echo

    msg_status 'NB: Use a tool such as BalenaEtcher to create bootable USB'
    msg_status "	From: '${HOME}/Desktop/${INSTALL_TARGET}.iso'"
    runExit ;
 }

 # installerExists by Jeff Geerling
 # Returns 0 if the installer was found locally or in '/Applications'.  1 if not.
 function installerExists() {
    local installerAppName
    local result

    result=1
    installerAppName="${1}"
    if [ -e "${SCRIPT_DIR}/${installerAppName}" ] ; then
        result=0
    elif [ -e "/Applications/${installerAppName}" ] ; then
        result=0
    fi
    return ${result}
 }

 function ErrClearAll() {
    if [ -d "${INSTALL_TEMP}" ] ; then
        sudo rm -rf "${INSTALL_TEMP}"
    fi
    if [ -d "${INSTALL_STICK}" ] ; then
        sudo rm -rf "${INSTALL_STICK}"
    fi
 }

 ## EXIT HANDLER ##
 runExit() {
    flag=${1:-Norm}
    if [ "${flag}" != 'Norm' ] ; then
        ErrClearAll ;
        echo && echo
        msg_info "Exit on Error"
        msg_info "Create Installer Aborted"
        echo && echo
        exit 1
    else
        echo && echo
        msg_info 'All Done!'
        echo && echo
        msg_info '################################'
        msg_info ' ##  Create Mac OS Install USB ##'
        msg_info '  ################################'
        echo && echo
        exit 0
    fi
 }

 ## ERROR HANDLER ##
 runErr() {
    ErrClearAll ;
    echo && echo
    msg_info "Runtime Error"
    msg_error "Create Installer Failed"
    echo && echo
    exit 1
 }
 trap runErr ERR


 ##
 ## Start Procedural Code
 ##
 INSTALL_TARGET='NotSet'
 INSTALL_BASIC='Install OS X'
 INSTALL_TYPE='NotSet'
 INSTALL_NAME='NotSet'
 INSTALL_TEMP='/tmp/VersionOSX'
 INSTALL_BASE='OS X Base System'
 INSTALL_APP='Mac OS Install'
 INSTALL_XYZ='NotSet'
 INSTALL_ESD='/Volumes/TMP_ESD'
 INSTALL_ID='USB_Maker'
 INSTALL_X='InstallMacOSX'
 TYPE_OSX="macOS"
 TMP_STR='NotSet'
 USE_APP='NotSet'
 VOL_BASE_SYS='NotSet'
 VOL_BASE_DIR='NotSet'

 if [ ! -d "/Volumes/${INSTALL_ID}" ] ; then
    err_msg="Connect a correctly sized USB stick labelled as '${INSTALL_ID}' and rerun this script"
    echo && echo
    msg_info 'ERROR!!'
    msg_error "${err_msg}"
    echo && echo
    exit 1
 fi

 # Resolve TMP_SOURCE until the file is no longer a symlink
 TMP_SOURCE=${BASH_SOURCE[0]}
 while [ -L "${TMP_SOURCE}" ] ; do
    DIR=$( cd -P "$( dirname "${TMP_SOURCE}" )" >/dev/null 2>&1 && pwd )
    TMP_SOURCE=$(readlink "${TMP_SOURCE}")
    # if ${TMP_SOURCE} is relative symlink, resolve relative to symlink file location
    [[ ${TMP_SOURCE} != /* ]] && TMP_SOURCE=${DIR}/${TMP_SOURCE}
 done
 SCRIPT_DIR=$( cd -P "$( dirname "${TMP_SOURCE}" )" >/dev/null 2>&1 && pwd )

 echo && echo
 enter_msg 'WithNb' 'WithAs' ;

 sudo clear
 echo && echo
 msg_info '  ################################'
 msg_info ' ##  Create Mac OS Install USB ##'
 msg_info '################################'

 echo && echo
 msg_info '## STAGE 1 of 4: Select Install Target ##'
 msg_info '------------------------------------------'
 msg_status 'STEP 01 of 03: Set Target Item'
 PS3='Enter Corresponding Number for Mac OS Version or Exit:- '
 options=('Sequoia' 'Sonoma' 'Ventura' 'Monterey' 'Big Sur' 'Catalina' 'Mojave' 'High Sierra' 'Sierra' 'El Capitan' 'Yosemite' 'Mavericks' 'Mountain Lion' 'Lion' 'Exit')
 select opt in "${options[@]}"
 do
    case $opt in
    'Monterey' | 'Big Sur' | 'Catalina' | 'Mojave' | 'High Sierra')
        INSTALL_NAME="${opt}"
        USE_APP='True'
    break
    ;;
    'Sierra')
        INSTALL_X='InstallOS'
        INSTALL_NAME="${opt}"
        USE_APP='Maybe'
        INSTALL_BASIC='Install macOS'
        INSTALL_APP="Install Mac OS ${INSTALL_NAME}.app"
    break
    ;;
    'El Capitan' | 'Yosemite')
        INSTALL_NAME="${opt}"
        USE_APP='Maybe'
        INSTALL_APP="Install Mac OS X ${INSTALL_NAME}.app"
    break
    ;;
    'Mountain Lion')
        INSTALL_NAME="${opt}"
        USE_APP='False'
        INSTALL_BASE='Mac OS X Base System'
        INSTALL_BASIC='Install Mac OS X'
        INSTALL_APP="Install OS X ${INSTALL_NAME}.app"
    break
    ;;
    'Lion')
        INSTALL_NAME="${opt}"
        USE_APP='False'
        INSTALL_BASE='Mac OS X Base System'
        INSTALL_BASIC='Install Mac OS X'
        INSTALL_APP="Install Mac OS X ${INSTALL_NAME}.app"
    break
    ;;
    'Mavericks')
        TMP_STR='Exit'
        INSTALL_NAME="${opt}"
    break
    ;;
    'Sequoia' | 'Sonoma' | 'Ventura')
        TMP_STR='Exit'
        INSTALL_NAME="${opt}"
    break
    ;;
    'Exit')
        TMP_STR='Exit'
    break
    ;;
    *)
        echo && echo
        msg_info 'ERROR!!'
        msg_error "Invalid Selection:- '${REPLY}'"
        echo && echo
    exit 1
    ;;
    esac
 done

 sudo -v && echo
 msg_status 'STEP 02 of 03: Get Target Item'
 echo "'${INSTALL_NAME}' Selected"
 if [ "${TMP_STR}" == 'Exit' ] ; then
    if [ "${INSTALL_NAME}" != 'NotSet' ] ; then
        echo && echo
        msg_error "${INSTALL_NAME} *IS NOT* Supported"
        echo
        if [ "${INSTALL_NAME}" != 'Mavericks' ] ; then
            echo "You might be able to get ${INSTALL_NAME} via the OCLP"
            echo 'See https://github.com/dortania/OpenCore-Legacy-Patcher'
        else
            echo 'You might be able to get Mavericks by running this command:'
            echo 'curl https://mavericks.wowfunhappy.workers.dev/ | sh'
            echo 'See https://forums.macrumors.com/threads/2444350'
        fi
    fi
    runExit 'Exit' ;
 fi

 sudo -v && echo
 msg_status 'STEP 03 of 03: Vet Target Item'
 read -r -p "Overwrite 'USB_Maker' with '${INSTALL_NAME}' Installer? [y/N] ... " response
 case "$response" in
    [yY][eE][sS]|[yY])
        echo "Confirmed"
    ;;
    *)
        runExit ;
    ;;
 esac

 sudo -v && echo
 msg_info 'Completed Stage 1'

 echo && echo
 msg_info '## STAGE 2 of 4: Validate Prerequisites ##'
 msg_info '-----------------------------------------'
 msg_status 'STEP 01 of 02: Validate Installer Name...'
 INSTALL_TARGET=$( echo "Install_${INSTALL_NAME}" | sed 's/ //g' )
 INSTALL_STICK="/Volumes/${INSTALL_TARGET}"
 if [ ! -d "${INSTALL_STICK}" ] ; then
    gotError='False'
    echo 'Validated'
 else
    err_msg="Unmount conflicting '${INSTALL_TARGET}' volume and rerun this script"
    gotError='True'
 fi

 TMP_STR='NotSet'
 if [ "${gotError}" == 'False' ] ; then
    sudo -v && echo
    msg_status 'STEP 02 of 02: Validate Misc Other...'
    # Check if using installer app for Yosemite to Sierra
    if [ "${USE_APP}" == 'Maybe' ] ; then
        USE_APP='False'
        if [ "${INSTALL_NAME}" == 'Sierra' ] ; then
            TMP_STR='macOS'
        elif [ "${INSTALL_NAME}" == 'El Capitan' ] || [ "${INSTALL_NAME}" == 'Yosemite' ] ; then
            TMP_STR='OS X'
        fi
        if [ "${TMP_STR}" != 'NotSet' ] ; then
            if installerExists "Install ${TMP_STR} ${INSTALL_NAME}.app" ; then
                USE_APP='True'
            fi
        fi
    fi
    TMP_STR='NotSet'
    if [ "${USE_APP}" == 'False' ] ; then
        # Ensure DMG is mounted
        if [ ! -d "/Volumes/${INSTALL_BASIC}" ] ; then
            err_msg="Mount the ${INSTALL_NAME} '${INSTALL_X}.dmg' file and rerun this script"
            gotError='True'
        fi
    else
        # Note by Jeff Geerling:
        # Eject installer disks in case opened after download from App Store
        # grep "partition_scheme" because "partition" finds too many lines
        for disk in $(hdiutil info | grep /dev/disk | grep partition_scheme | cut -f 1) ; do
            hdiutil detach -force "${disk}" || true
        done
    fi
 fi

 # Error/Exit Handling
 if [ "${gotError}" == 'False' ] ; then
    echo 'Validated'
 else
    echo && echo
    msg_info 'ERROR!!'
    msg_error "${err_msg}"
    runExit 'Error' ;
 fi

 sudo -v && echo
 msg_info 'Completed Stage 2'

 if [ "${USE_APP}" == 'True' ] ; then
    echo && echo
    msg_info '## STAGE 3 of 4: Find Installer ##'
    msg_info '----------------------------------'
    msg_status 'STEP 01 of 01: Checking for Installer App...'
    if [[ "${INSTALL_NAME}" == 'Monterey' || "${INSTALL_NAME}" == 'Big Sur' || "${INSTALL_NAME}" == 'Catalina' || "${INSTALL_NAME}" == 'Mojave' ]] ; then
        if installerExists "Install macOS ${INSTALL_NAME}.app" ; then
            INSTALL_TYPE='macOS'
            TYPE_OSX='macOS'
        fi
    elif [[ "${INSTALL_NAME}" == 'High Sierra' || "${INSTALL_NAME}" == 'Sierra' ]] ; then
        # DA-TAG: The Sierras are odd with 'macOS' app name but 'OS X' elsewhere
        if installerExists "Install macOS ${INSTALL_NAME}.app" ; then
            INSTALL_TYPE='macOS'
            TYPE_OSX='OS X'
        fi
    elif [[ "${INSTALL_NAME}" == 'El Capitan' || "${INSTALL_NAME}" == 'Yosemite' ]] ; then
        if installerExists "Install OS X ${INSTALL_NAME}.app" ; then
            INSTALL_TYPE='OS X'
            TYPE_OSX='OS X'
        fi
    fi
    if [ "${TYPE_OSX}" == 'NotSet' ] ; then
        echo && echo
        msg_info 'ERROR!!'
        msg_error "Could not find valid installer app file"
        runExit 'Error' ;
    fi
    echo "Found Installer App for ${INSTALL_NAME}"
    VOL_BASE_DIR="/Volumes/${TYPE_OSX} Base System"
    VOL_BASE_SYS="${VOL_BASE_DIR}/BaseSystem"
    TMP_STR='NotSet'

    sudo -v && echo
    msg_info 'Completed Stage 3'

    echo && echo
    msg_info '## STAGE 4 of 4: Create ISO Image ##'
    msg_info '------------------------------------'
    createISO "Install ${INSTALL_TYPE} ${INSTALL_NAME}.app"
 else
    echo && echo
    msg_info '## STAGE 3 of 4: Deconstruct Installer ##'
    msg_info '-----------------------------------------'
    msg_status 'STEP 01 of 02: Creating Temp Store...'
    chill_msg ;
    sudo rm -rfv "${INSTALL_TEMP}"
    pkgutil --expand "/Volumes/${INSTALL_BASIC}/${INSTALL_X}.pkg" "${INSTALL_TEMP}"
    echo 'Created Temp Store'

    sudo -v && echo
    msg_status 'STEP 02 of 02: Ejecting Install DMG...'
    sudo diskutil eject "${INSTALL_BASIC}"

    sudo -v && echo
    msg_info 'Completed Stage 3'

    echo && echo
    msg_info '## STAGE 4 of 4: Repackage Installer ##'
    msg_info '---------------------------------------'
    msg_status 'STEP 01 of 08: Attaching InstallESD...'
    hdiutil attach "${INSTALL_TEMP}/${INSTALL_X}.pkg/InstallESD.dmg"  -noverify -nobrowse -mountpoint "${INSTALL_ESD}"

    sudo -v && echo
    msg_status 'STEP 02 of 08: Preparing Target Disk...'
    chill_msg ;
    sudo asr restore -source "${INSTALL_ESD}/BaseSystem.dmg" -target "/Volumes/${INSTALL_ID}" -noprompt -noverify -erase || true
    diskutil rename "${INSTALL_BASE}" "${INSTALL_TARGET}"

    sudo -v && echo
    msg_status 'STEP 03 of 08: Reconstituting Installation Packages...'
    chill_msg ;
    get_dir="${INSTALL_ESD}/Packages"
    put_dir="${INSTALL_STICK}/System/Installation"
    total_files=$(find "$get_dir" -type f | wc -l)
    if [[ $total_files -eq 0 ]]; then
        echo && echo
        msg_info 'ERROR!!'
        msg_error "Could not find installation packages"
        runExit 'Error' ;
    fi
    counter=0
    rm -v "${INSTALL_STICK}/System/Installation/Packages"
    find "$get_dir" -type f | while read -r file; do
        sudo -v
        counter=$((counter + 1))
        rel_path="${file#$get_dir/}"
        dest_path="$put_dir/$rel_path"
        mkdir -p "$(dirname "$dest_path")"
        cp -pv "$file" "$dest_path"
    done

    sudo -v && echo
    msg_status 'STEP 04 of 08: Reconstituting BaseSystem...'
    chill_msg ;
    cp -rpv "${INSTALL_ESD}/BaseSystem.dmg" "${INSTALL_STICK}/"
    cp -rpv "${INSTALL_ESD}/BaseSystem.chunklist" "${INSTALL_STICK}/"

    sudo -v && echo
    msg_status 'STEP 05 of 08: Detaching InstallESD...'
    hdiutil detach "${INSTALL_ESD}" || true

    sudo -v && echo
    msg_status 'STEP 06 of 08: Updating VolumeIcon...'
    INSTALL_XYZ="${INSTALL_APP}"
    InstallIcon="${INSTALL_STICK}/${INSTALL_XYZ}/Contents/Resources/InstallAssistant.icns"
    if [ ! -f "${InstallIcon}" ] ; then
        INSTALL_XYZ="${INSTALL_STICK}/Install OS X ${INSTALL_NAME}.app"
        InstallIcon="${INSTALL_XYZ}/Contents/Resources/InstallAssistant.icns"
        if [ ! -f "${InstallIcon}" ] ; then
            INSTALL_XYZ="${INSTALL_STICK}/Install Mac OS X ${INSTALL_NAME}.app"
            InstallIcon="${INSTALL_XYZ}/Contents/Resources/InstallAssistant.icns"
            if [ ! -f "${InstallIcon}" ] ; then
                INSTALL_XYZ="${INSTALL_STICK}/Install Mac OS ${INSTALL_NAME}.app"
                InstallIcon="${INSTALL_XYZ}/Contents/Resources/InstallAssistant.icns"
                if [ ! -f "${InstallIcon}" ] ; then
                    INSTALL_XYZ="${INSTALL_STICK}/Install macOS ${INSTALL_NAME}.app"
                    InstallIcon="${INSTALL_XYZ}/Contents/Resources/InstallAssistant.icns"
                fi
            fi
        fi
    fi
    if [ ! -f "${InstallIcon}" ] ; then
        INSTALL_XYZ="${INSTALL_APP}"
        InstallIcon="${INSTALL_STICK}/${INSTALL_XYZ}/Contents/Resources/ProductPageIcon.icns"
        if [ ! -f "${InstallIcon}" ] ; then
            INSTALL_XYZ="${INSTALL_STICK}/Install OS X ${INSTALL_NAME}.app"
            InstallIcon="${INSTALL_XYZ}/Contents/Resources/ProductPageIcon.icns"
            if [ ! -f "${InstallIcon}" ] ; then
                INSTALL_XYZ="${INSTALL_STICK}/Install Mac OS X ${INSTALL_NAME}.app"
                InstallIcon="${INSTALL_XYZ}/Contents/Resources/ProductPageIcon.icns"
                if [ ! -f "${InstallIcon}" ] ; then
                    INSTALL_XYZ="${INSTALL_STICK}/Install Mac OS ${INSTALL_NAME}.app"
                    InstallIcon="${INSTALL_XYZ}/Contents/Resources/ProductPageIcon.icns"
                    if [ ! -f "${InstallIcon}" ] ; then
                        INSTALL_XYZ="${INSTALL_STICK}/Install macOS ${INSTALL_NAME}.app"
                        InstallIcon="${INSTALL_XYZ}/Contents/Resources/ProductPageIcon.icns"
                    fi
                fi
            fi
        fi
    fi
    if [ -f "${InstallIcon}" ] ; then
        cp -v "${InstallIcon}" "${INSTALL_STICK}/.VolumeIcon.icns"
    else
        echo 'Skipped VolumeIcon Update ... Not Found'
    fi

    sudo -v && echo
    msg_status 'STEP 07 of 08: Labelling Installer...'
    sudo bless --folder "${INSTALL_STICK}/System/Library/CoreServices" --label "${INSTALL_TARGET}"
    echo "Labelled as '${INSTALL_TARGET}'"

    sudo -v && echo
    msg_status 'STEP 08 of 08: Cleaning Up...'
    cd "${HOME}" || true
    sudo rm -rf "${INSTALL_TEMP}" || true
    echo 'Cleared Temp Store'

    echo
    msg_info 'Completed Stage 4'
    runExit ;
 fi