Enable Bootcamp to install from usb for OSX 10.9**WORKS**

So basically, I have trying to install windows on my mbp using a usb drive. However bootcamp wont allow me to do so since I have a optical drive on the laptop. I have been searching for a long time and eventually came across this solution and I would like to share this so u guys dont have to google all over the place again .
The solutions given before by changing info.plist is correct except that now Bootcamp crashes everytime you change it in OSX 10.9.
Full solution:
1. Add your Boot Rom Version(from system info) under DARequiredROMVersions.
2. Add Model Identifier(from system info) under PreUSBBootSupportedModels
3. Delete "Pre" from "PreUSBBootSupportedModels", so you have "USBBootSupportedModels"
The first 3 steps are same as before and if its not clear you can easily google solutions with screenshots.
The next step is only for OSX 10.9, as it employs some kind of code signature to prevent you from changing info.plist and cause bootcamp to crash.
4. Open your terminal, use the following command
sudo codesign -fs - /Applications/Utilities/Boot\ Camp\ Assistant.app
Sudo means using administrator privilege and u need to enter your mac password. And the command resigns the bootcamp application so that it runs with the new info.plist file and not crash.
5. Continue on with your installation....
Cheers.
P.S. back up info.plist before u change anything.

do you have multiple partitions on your USB stick? And what partition table does it use?
I have two windows installers. One is on a 4GB single partition fat32 formatted stick, and one is on a 5GB partitions of a 500GB USB HDD. On the USB HDD I have windows as second partition. First is OSX installer. I noticed that I can boot in BIOS mode with the 4GB USB stick, but not with the 500GB USB HDD.
So try a windows formatted USB stick with a single partition. See if that works.
Be carefull with google.. In the last few days I have been researching some bootcamp related things and there is waaaay more wrong information of people that tell others what they 'heard' than that there is right information of those who know how stuff works.
I am of the 2nd category btw. I only tell you what I know for sure. If an '06 macbook with ODD can boot of of USB into BIOS mode, then so should you.
Edit: The reason the Windows EFI installers says it found an MBR partition only is because by default the disk is in GPT mode with a 'protected' mbr so that non-gpt aware programs wont look and scream "free space! ".
In order for Bootcamp to install in legacy BIOS mode it converts this 'protective' MBR into a "hybrid" MBR. If you download the open source app "Gdisk", install it, and type "sudo gdisk /dev/disk0" in terminal you will see there is either a protective or hybrid MBR on the disk.
Formatting a disk to fat32 with any OSX tool (BC Utility or disk utility) will convert the protective MBR to Hybrid MBR.
Gdisk allows you to reset this to a protective MBR as described here: http://superuser.com/questions/508026/windows-detects-gpt-disk-as-mbr-in-efi-boo t
Hybrid MBR: Full Bootcamp compatibility. OSX knows whats up and decides everything. Windows installs in legacy BIOS mode on an MBR type disk.
Protective MBR: Bootcamp utility and OSX are not used since they would convert the disk to a hybrid MBR. This mode is compatible with booting in EFI mode. EFI compatible Windows versions (7 partially, 8 completely) will live alongside OS X, for the most without problems. And will install on a GPT type disk.
Hope to have helped you with this. Took me three full days of non-stop reading to figure this out.
Message was edited by: Jognt
Edit 2: Make damned sure you have a backup of your system. Messing around with partition types and tables shouldnt hurt when you know what you're doing. But since I know this for three days, and you apparently havent found this yet, I think it's safe to say both of us aren't yet 100% sure of what we're doing .
Message was edited by: Jognt

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