I'm trying to install Windows 7 from a USB onto a bootcamp partition. No working :(

So, I thought I might try and burn the bootable win 7 usb to a dvd or ISO (and then burn that ISO to disk).

How can I do this with my Macbook Pro? I al

Note: I'm using Lion, btw.



The easiest way will probably be UNetbootin which lets you specify an ISO to use and will create a bootable USB drive from it. I've not tried it on Lion but a quick Google says it should be compatible (a 90% of the time it works all the time situation).

  • Hi Nicholas - um .. I don't think you read my question right? I've already got a bootable USB drive with Windows 7 on it. I need to make an ISO -from- the USB ...
    – Pure.Krome
    Sep 26 '11 at 22:17
  • Ah yeah my bad I misread it! The easiest way I know of is to use dd, the command will be: dd if=/dev/<your usb drive> of=win7.iso. You can then use that to create a DVD from either Disk Utility or Toast. Sep 27 '11 at 8:21
  • cheers :) I typed df -h to see my mounts, and saw the USB. Then i typed dd -if=/dev/disk2s1 of=win7.iso while in terminal and in my Desktop folder .. and get the error message: dd: /dev/disk2s1: Resource Busy .. :(
    – Pure.Krome
    Sep 27 '11 at 12:04
  • You need to make sure it's unmounted first or OS X won't allow you to write to it, try {hdiutil eject <diskname>} Sep 27 '11 at 12:34
  • Won't -write- to it? i'm trying to write the iso to my mac desktop, not back to the usb ... ?? And when i eject to the usb, it's not mounted so i can't access it anymore? (i just ejected it from FINDER). .. ????
    – Pure.Krome
    Sep 27 '11 at 12:50

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