I am not really sure why you would want to install Windows 8.1 without BootCamp.
The USB stick needs to be a little bigger than the
.iso file you are going to be burning. It doesn't matter if there is any data on it, this will totally erase the whole thing.
Steps To Achieve Victory
- Download the ISO you want to use
Open Terminal (in /Applications/Utilities)
2.1 Navigate to the path where the .iso file is located
ls to list all the folders
cd /path/to/iso to dive in to folder or
cd .. to go back the path
.img using hdiutil:
hdiutil convert -format UDRW -o /path/to/target.img /path/to/source.iso
- Rename if OS X gave it a
mv /path/to/target.img.dmg path/to/target.img
diskutil list to get a list of currently connected devices
- Insert USB drive you want to use
diskutil list again to see what your USB stick gets assigned
eg - /dev/disk3
diskutil unmountDisk /dev/diskN (where
N is the number assigned to your USB stick, in previous example it would be
sudo dd if=/path/to/target.img of=/dev/diskN bs=1m (if you get an error, replace
diskutil eject /dev/diskN and remove your USB stick
- The USB stick will now be ready to use
IMPORTANT For the step #9 you can use the destination to
/dev/rdiskN to reduce the copy time.
NOTE: Sometimes, not always, Step #4 will be necessary. Not all the time. I am not sure why it will add the
.dmg ending and other times leave it alone.
NOTE 2: Might I suggest you learn the name of the
.iso you downloaded, or just rename it
win8.1.iso or something, and put it on your Desktop folder. That way, when you are typing commands like #3 and #4 etc, etc, you can type it like this:
hdiutil convert -format UDRW -o ~/Desktop/win8.1.img ~/Desktop/win8.1.iso
mv ~/Desktop/win8.1.img.dmg ~/Desktop/win8.1.img
and step #9 would look like this:
sudo dd if=~/Desktop/win8.1.img of=/dev/diskN bs=1m
IMPORTANT - You can track the progress by pressing CTRL + T It will show the process info and records in and out, since we use the
bs=1m each record is 1Mb in size so you can easily track the progress.
I don't mean to be insulting with Note and Note2, I am just making sure that you know what all these commands mean. It's the simplest method. Unless someone else comes up with something better.