bmatcuk · May 30, 2019 04:38 · TechUnRestricted · Feb 11, 2024 · leafypout · Aug 29, 2025
diff --git a/create-usb.sh b/create-usb.sh
 # First, we need to find our device. BEFORE inserting your USB drive, run the
 # following:
 diskutil list

 # This will output a bunch of info about all of the disk drives connected to
 # your Mac. Each entry will have a header in the form "/dev/diskX", where X is
 # some number starting at 0. Now, insert your USB drive and run the command
 # again. You should see a new entry. Make note of the name (ie, /dev/diskX).
 diskutil list

 # Now we need to format the drive for MS-DOS and include a Master Boot Record.
 # In the command below, replace "diskX" with the identifier of your USB drive.
 # WARNING: this will delete everything on the USB!!
 diskutil eraseDisk MS-DOS WIN10 MBR diskX

 # In the command above, MS-DOS is the format of the partition that will be
 # created on the USB. WIN10 is the name of that partition (it'll appear in
 # Finder as the name of your USB). MBR tells diskutil to create a Master Boot
 # Record, which is necessary for the USB to be bootable.
 #
 # Now, "open" the Windows ISO:
 open Win10xxxx.iso

 # Your Mac will "mount" the ISO as if it was a drive. A Finder window will open
 # to show the contents of the ISO. Close the Finder window; you don't need it.
 # Back in the terminal, let's find the mounted ISO:
 diskutil list

 # You should see a new entry. This time, we're looking for what's in the NAME
 # column. You should see something funny like CCCOMA_X64FRE_EN-US_DV9. The name
 # will differ depending on which ISO you downloaded. Make note of the diskX
 # identifier as well. Now, let's cd to the ISO:
 cd /Volumes/CCCOMA_X64FRE_EN-US_DV9

 # And copy all the files over to our USB:
 sudo cp -r . /Volumes/WIN10/

 # This will take a while; there's a lot of data (4+ GB). Grab a drink; relax.
 #
 # Once it's done, you can eject both the USB and the ISO. First, cd to another
 # directory otherwise OSX will not allow you to unmount the ISO (since being in
 # the directory means the ISO is "in use"):
 cd ~

 # Eject the USB using the diskX identifier from the second step above:
 diskutil eject diskX

 # Eject the ISO using the diskX identifier from the fifth step above:
 diskutil eject diskX

 # Now insert the USB into your computer, (re)boot, and select the USB from the
 # boot device menu (you may need to press some key to show the boot device menu
 # - on my machine it's F12).
 #
 #Depending on how new your computer is, you may see the USB twice: once with
 # UEFI in front of the name, and the other without. If you see the UEFI option,
 # select that.
	# First, we need to find our device. BEFORE inserting your USB drive, run the
	# following:
	diskutil list

	# This will output a bunch of info about all of the disk drives connected to
	# your Mac. Each entry will have a header in the form "/dev/diskX", where X is
	# some number starting at 0. Now, insert your USB drive and run the command
	# again. You should see a new entry. Make note of the name (ie, /dev/diskX).
	diskutil list

	# Now we need to format the drive for MS-DOS and include a Master Boot Record.
	# In the command below, replace "diskX" with the identifier of your USB drive.
	# WARNING: this will delete everything on the USB!!
	diskutil eraseDisk MS-DOS WIN10 MBR diskX

	# In the command above, MS-DOS is the format of the partition that will be
	# created on the USB. WIN10 is the name of that partition (it'll appear in
	# Finder as the name of your USB). MBR tells diskutil to create a Master Boot
	# Record, which is necessary for the USB to be bootable.
	#
	# Now, "open" the Windows ISO:
	open Win10xxxx.iso

	# Your Mac will "mount" the ISO as if it was a drive. A Finder window will open
	# to show the contents of the ISO. Close the Finder window; you don't need it.
	# Back in the terminal, let's find the mounted ISO:
	diskutil list

	# You should see a new entry. This time, we're looking for what's in the NAME
	# column. You should see something funny like CCCOMA_X64FRE_EN-US_DV9. The name
	# will differ depending on which ISO you downloaded. Make note of the diskX
	# identifier as well. Now, let's cd to the ISO:
	cd /Volumes/CCCOMA_X64FRE_EN-US_DV9

	# And copy all the files over to our USB:
	sudo cp -r . /Volumes/WIN10/

	# This will take a while; there's a lot of data (4+ GB). Grab a drink; relax.
	#
	# Once it's done, you can eject both the USB and the ISO. First, cd to another
	# directory otherwise OSX will not allow you to unmount the ISO (since being in
	# the directory means the ISO is "in use"):
	cd ~

	# Eject the USB using the diskX identifier from the second step above:
	diskutil eject diskX

	# Eject the ISO using the diskX identifier from the fifth step above:
	diskutil eject diskX

	# Now insert the USB into your computer, (re)boot, and select the USB from the
	# boot device menu (you may need to press some key to show the boot device menu
	# - on my machine it's F12).
	#
	#Depending on how new your computer is, you may see the USB twice: once with
	# UEFI in front of the name, and the other without. If you see the UEFI option,
	# select that.
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