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Quick script to write a bootable UEFI Windows ISO to USB in macOS
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#!/bin/bash | |
# System: Darwin x86_64 19.6.0 (macOS 10.15.6 19G2021) | |
# Author: Othyn (https://github.com/othyn) | |
# Source: https://gist.github.com/othyn/29b82e39eb8cdd98adf1be77cbb62700 | |
# Dependencies: pv, wimlib | |
# Licence: MIT | |
DEFAULT="\x1b[0m" | |
RED="\x1b[31m" | |
GREEN="\x1b[32m" | |
YELLOW="\x1b[33m" | |
newLine () { | |
printf "\n" | |
} | |
printLine () { | |
printf ">>> ${1}\n" | |
} | |
defaultLine () { | |
printLine "${DEFAULT}${1}" | |
} | |
redLine () { | |
printLine "${RED}${1}${DEFAULT}" | |
} | |
greenLine () { | |
printLine "${GREEN}${1}${DEFAULT}" | |
} | |
yellowLine () { | |
printLine "${YELLOW}${1}${DEFAULT}" | |
} | |
# Dependency checks | |
if ! command -v pv >/dev/null 2>&1 ; then | |
redLine "Please install pv first, via 'brew install pv' is easiest, then try again." | |
exit 1 | |
fi | |
if ! command -v wimlib-imagex >/dev/null 2>&1 ; then | |
redLine "Please install wimlib first, via 'brew install wimlib' is easiest, then try again." | |
exit 1 | |
fi | |
# Check the path to the image to flash was provided | |
if [[ -z "${1}" ]] ; then | |
redLine "Please provide the path to the image to flash and try again!" | |
exit 1 | |
fi | |
# Set the image path to use | |
imagePath="${1}" | |
imageDirname="$(dirname "${imagePath}")" | |
imageBasename="$(basename "${imagePath}")" | |
if [[ ! -f "${1}" ]] ; then | |
redLine "Invalid filepath provided. Please try again!" | |
exit 1 | |
fi | |
displayDisks () { | |
# Clear the console | |
clear | |
defaultLine "These are the disks currently available on your system:" | |
newLine | |
# Spit out all available disks | |
diskutil list | |
} | |
# Set disk validity | |
validDisk=false | |
displayDisks | |
while [ "$validDisk" = false ]; do | |
# Ask which disk number they wish to flash | |
greenLine "Please enter the disk number of the disk you wish to flash: " | |
read usbDiskNumber | |
if [[ -e /dev/disk"${usbDiskNumber}" ]]; then | |
validDisk=true | |
else | |
redLine "Disk /dev/disk${usbDiskNumber} not found!" | |
fi | |
done | |
displayDisks | |
greenLine "Disk /dev/disk${usbDiskNumber} has been selected." | |
redLine "This disk will be permanently erased!" | |
yellowLine "Are you sure you want to continue? Y/n: " | |
read diskWipeConfirm | |
# Confirm that they want to wipe the selected disk | |
if [[ "$diskWipeConfirm" != Y ]]; then | |
greenLine "User didn't want to write, aborting!" | |
exit 0 | |
fi | |
usbVolumeName="WINSTALL" | |
newLine | |
greenLine "Partitioning the entire of disk${usbDiskNumber} to MBR Fat32 with name '${usbVolumeName}'..." | |
# Partition the disk as required | |
diskutil eraseDisk MS-DOS "${usbVolumeName}" MBR /dev/disk"${usbDiskNumber}" | |
sleep 1 | |
isoMountPath="${HOME}/mount/WINSTALL_SRC" | |
newLine | |
greenLine "Mounting ISO to temporary location '${isoMountPath}'..." | |
if [[ ! -d "${isoMountPath}" ]] ; then | |
mkdir -p "${isoMountPath}" | |
else | |
diskutil unmount "${isoMountPath}" | |
fi | |
hdiutil mount -mountPoint "${isoMountPath}" "${imagePath}" | |
newLine | |
greenLine "Copying all but install.wim from '${isoMountPath}/' to '/Volumes/${usbVolumeName}'..." | |
rsync -vha --progress --exclude=sources/install.wim "${isoMountPath}/" "/Volumes/${usbVolumeName}" | |
newLine | |
greenLine "Creating install.wim chunks an placing into '/Volumes/${usbVolumeName}/sources'..." | |
yellowLine "This may take some time and appear to not do anything, bare with it..." | |
mkdir -p "/Volumes/${usbVolumeName}/sources" | |
wimlib-imagex split "${isoMountPath}/sources/install.wim" "/Volumes/${usbVolumeName}/sources/install.swm" 4000 | |
newLine | |
greenLine "Cleaning up temporary mounts and directories..." | |
diskutil eject "${isoMountPath}" | |
rm -r "${isoMountPath}" | |
newLine | |
greenLine "Flash complete!" | |
exit 0 |
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