Hello,
So far, I managed to build my own non-certified Windows to Go boot drive using the instructions here: http://www.admin-magazine.com/Articles/Putting-Windows-8-on-a-USB-Drive
The problem is, it boots into my Mac via BIOS and not UEFI (I know this because there's a flashing cursor on the upper left corner at startup).
I also tried formatting in GPT-NTFS via diskpart in cmd.exe and followed the rest of the procedure in the aforementioned link, but when I hold down Option at boot, the drive doesn't show up as a boot option. When formatted as MBR-NTFS, it shows up at boot.
Any ideas?
Thank you.
Update: I managed to figure out the steps to get it working. I've included the procedure for anyone who's interested to do the same thing as I did.
Connect external drive to Windows VM. You must have a Windows VM in VMware/Parallels.
What you need:
install.wim file (obtain this from your Windows ISO)
Open elevated cmd.exe
Note: All commands aren't case sensitive, including pathway to files.
Type diskpart
Type list disk
Take note of the disk you want to select
Type select disk 1 (if your disk is Disk 1)
Type clean
Type convert gpt
Type create partition EFI size=100
Type format quick fs=fat32 label=EFI
Type assign letter=S
Type create partition primary
Type format fs=ntfs quick label=W2G (or any other name you wish for label)
Type assign letter=E
Type exit
Open up File Explorer. In your C drive, create a new folder named WIN2GO.
Put the install.wim file in this folder
Back in cmd.exe:
Type dism /apply-image /imagefile:C:\WIN2GO\install.wim /index:1 /applydir:E:\ (this process will take quite a while)
Type E:\Windows\System32\bcdboot E:\Windows /s S: /f UEFI
Restart your entire Mac. After the chime, hold down Option and when prompted to select your boot drive, select EFI Boot.
Proceed installation normally.
After installation, install Boot Camp drivers.
So far, I managed to build my own non-certified Windows to Go boot drive using the instructions here: http://www.admin-magazine.com/Articles/Putting-Windows-8-on-a-USB-Drive
The problem is, it boots into my Mac via BIOS and not UEFI (I know this because there's a flashing cursor on the upper left corner at startup).
I also tried formatting in GPT-NTFS via diskpart in cmd.exe and followed the rest of the procedure in the aforementioned link, but when I hold down Option at boot, the drive doesn't show up as a boot option. When formatted as MBR-NTFS, it shows up at boot.
Any ideas?
Thank you.
Update: I managed to figure out the steps to get it working. I've included the procedure for anyone who's interested to do the same thing as I did.
Connect external drive to Windows VM. You must have a Windows VM in VMware/Parallels.
What you need:
install.wim file (obtain this from your Windows ISO)
Open elevated cmd.exe
Note: All commands aren't case sensitive, including pathway to files.
Type diskpart
Type list disk
Take note of the disk you want to select
Type select disk 1 (if your disk is Disk 1)
Type clean
Type convert gpt
Type create partition EFI size=100
Type format quick fs=fat32 label=EFI
Type assign letter=S
Type create partition primary
Type format fs=ntfs quick label=W2G (or any other name you wish for label)
Type assign letter=E
Type exit
Open up File Explorer. In your C drive, create a new folder named WIN2GO.
Put the install.wim file in this folder
Back in cmd.exe:
Type dism /apply-image /imagefile:C:\WIN2GO\install.wim /index:1 /applydir:E:\ (this process will take quite a while)
Type E:\Windows\System32\bcdboot E:\Windows /s S: /f UEFI
Restart your entire Mac. After the chime, hold down Option and when prompted to select your boot drive, select EFI Boot.
Proceed installation normally.
After installation, install Boot Camp drivers.
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