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Creating a partitian for Windows (via Disk Utility)

C

ColourCrisis

macrumors newbie
Original poster
Dec 26, 2011
5
0
Hi,

I installed windows 7 to a USB. But I keep getting "missing operating system" on boot...

I think this is a partitian fault, because on Lion the Boot Camp assistant didn't ask me to partitian the drive.

So I want to do it manually.

Can someone tell me how I can manually partician 20GB for a Windows 7 OS?
and what format?? Free space? or MS-DOS (FAT) ?

Thanks!!
 
Windows can't be easily booted from an external device, if "USB" alludes to a USB flash memory thumb drive or external HDD connected via USB.
There may be a workaround, use the www search engine of your choice to maybe found a guide or two.
For partitioning your internal HDD for Windows use, you need to use Boot Camp Assistant, not Disk Utility.
 
Intell said:
Did you install Windows 7 onto a USB disk?
Click to expand...

Yup, using microsoft's usb backup tool.

simsaladimbamba said:
Windows can't be easily booted from an external device, if "USB" alludes to a USB flash memory thumb drive or external HDD connected via USB.
There may be a workaround, use the www search engine of your choice to maybe found a guide or two.
For partitioning your internal HDD for Windows use, you need to use Boot Camp Assistant, not Disk Utility.
Click to expand...

I did it all from a youtube tutorial, but I just got a "missing operating system". I think the reason why is because the guy in the video was using Leopard, and i'm on a Lion... Bootcamp has since changed.

Bootcamp assistant didn't prompt me to partition... so that's why i'm asking how to do it via Disk Utility...
 
Thanks. Installing with/from a USB drive vs. installing to a USB drive. One works (sometimes) the other much more rarely.

Unfortunately not all Macs will boot the W7 installer this way. Which specific model is your Mac?

B
 
balamw said:
Thanks. Installing with/from a USB drive vs. installing to a USB drive. One works (sometimes) the other much more rarely.

Unfortunately not all Macs will boot the W7 installer this way. Which specific model is your Mac?

B
Click to expand...

2011 Macbook pro 15"

I think you might be right about this... the person on the video was using a MBA.
 
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