Boot Camp problem

Discussion in 'Windows, Linux & Others on the Mac' started by simon360, Dec 13, 2011.

  1. simon360 macrumors newbie

    Joined:
    Apr 12, 2007
    #1
    Hey guys,

    I need to install Windows 7 for my job (shudder). I've got an ISO and a USB drive, and I've got the Boot Camp assistant open, but the option to "Create a Windows 7 install disk" is greyed out.

    I had already created a Windows 7 install USB key, through the utility Microsoft provides, so I figured I could go ahead without it. But when I got to the point of partitioning, the utility wouldn't let me continue, because it couldn't detect a Windows 7 install disk.

    I'm on a late 2010 MacBook Air 128GB.

    All of the alternative methods I've seen seem to involve rEFIt, but more importantly they require using the Boot Camp assistant to partition the drive. But the BCA refuses to partition without a Windows 7 disk.

    What do I do here?
     
  2. David085 macrumors 6502a

    David085

    Joined:
    Nov 9, 2009
    #2
    Burn the ISO to a DVD and install from there, USB flash drive won't work as you already notice.
     
  3. simon360 thread starter macrumors newbie

    Joined:
    Apr 12, 2007
    #3
    But I don't have an optical drive :/
     
  4. David085 macrumors 6502a

    David085

    Joined:
    Nov 9, 2009
    #4
    see if you can borrow a friends computer to burn the iso or pick up a cheap external usb optical DVD drive or purchase the MBA Superdrive
     
  5. Pharmscott macrumors 6502a

    Pharmscott

    Joined:
    Dec 13, 2011
    Location:
    Sacramento, CA
    #5
    This is totally do-able via USB drive. I did it myself this week. You can't just copy the ISO onto the USB drive; it has to be mounted. Lion will do this for you. Just copy the Win7 ISO to your desktop and run Bootcamp again and it will find it. Then Bootcamp will walk you through the process. Note: the USB drive must be at least 8gb to hold both the Win7 ISO and drivers that download from Apple during the setup process.
     
  6. simon360 thread starter macrumors newbie

    Joined:
    Apr 12, 2007
    #6
    Hmm, ok. I went out and bought a 4GB drive today after reading http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf, which said only a 4GB drive was needed. I'll see if anyone in my building has an 8GB drive I can use.

    Is there any way I can just skip the dialog that stops me from proceeding without the disc? The drive should be perfectly bootable, I made it using the utility Microsoft provides to make a bootable USB drive.
     
  7. ethics101 macrumors regular

    Joined:
    Apr 16, 2011
  8. s2dio macrumors regular

    s2dio

    Joined:
    Oct 28, 2010
    Location:
    Riga, Latvia
    #8
    I've got the same problem as simon360 and can't figure out how to install Win 7 wia Lion's bootcamp. It all went pretty smooth on Snow Leopard.

    Pharmscott, have you actually installed Win 7 on a 2010 Macbook Air? Because as I understood from the threads I found, it all goes well on a 2011 version but not the 2010.
     
  9. Pharmscott macrumors 6502a

    Pharmscott

    Joined:
    Dec 13, 2011
    Location:
    Sacramento, CA
    #9
    It only takes 4gb for the Win7 ISO but one step in the process is for your Mac to download all the drivers you'll need to finish Win7 setup so that's why you need 8gb total.

    I don't know of a way to skip the dialog when it can't find the disc. Are you on Lion? Did you try copying the ISO to the desktop? This worked like a champ for me.

    No, I have a 2011 Air but I'd be surprised if this makes a difference... so long as you're running Lion.
     
  10. asianjabba macrumors newbie

    Joined:
    Mar 26, 2012
    #10
    has anybody successfuly installed windows 7 with just the ISO and a usb thumb drive? all the threads i've read is that macbook air 2010 on lion will not allow you to install windows 7 on a thumb drive. ONLY macbook air 2010. 2011 is perfectly fine.
     
  11. gentlefury macrumors 68030

    Joined:
    Jul 21, 2011
    Location:
    Los Angeles, CA
    #11
    As long as you have the latest OS update you should be good to go. I've done it many times.

    You don't need bootcamp to re-partition the drive. Its a pain to use because unless it completely recognizes the disk as proper it won't let you run partition. I have a stripped copy of Win7 that puts the install to about 2GB on disk....and bootcamp assistant won't recognize it as a windows disk, and refuses to re-partition.

    If you go into Disk Utility, you can create the partition there, without any need to authenticate anything. Just format the new partition as Fat32 and when you get into the installer delete that partition and reformat it to NTFS before installing windows and you will be all set.
     
  12. EthosX macrumors regular

    Joined:
    Jul 23, 2012
    #12
    guys i have problem i need to create usb bootable drive i just cant anybody knows why?
     
  13. n1tut macrumors regular

    n1tut

    Joined:
    Nov 20, 2010
    Location:
    Glen of Newmill, Keith, Scotland
    #13
    A 32gb USB stick now costs £10, so no point in buying a 4gb one.

    tut
     
  14. asting macrumors 6502

    Joined:
    Jun 10, 2012
    #14
    Do you have the 2010, because afaik the 2010 needs an optical drive, and later models allow for install via usb.
     
  15. gentlefury macrumors 68030

    Joined:
    Jul 21, 2011
    Location:
    Los Angeles, CA
    #15
    You don't need to use BCA...you can just use disk utility to repartition the drive and start the installer.
     
  16. EthosX macrumors regular

    Joined:
    Jul 23, 2012
    #16
    no macbook pro mid 2007 i got

    ----------

    no I have installed SSD 128gb unallocated and I want install clean windows 7 64
    via usb ..
     
  17. MEGAMARK macrumors newbie

    Joined:
    Mar 6, 2013
    #17
    Here is how to do it

    These steps only work after succesfully partitioning your hardrive. If you run into trouble partitioning your harddrive, start computer up while holding command+S. Then type in /sbin/fsck -fy and hit return. If it returns a message saying system OK then you are all set. If it says system modified then type the command again and hit enter until you recieve the system OK message.

    If you have a partitioned harddrive.

    1)INSTALL VMWARE on mac
    2)Copy iso file to virtual desktop
    3)Open vmware and download usb/dvd download tool for windows.
    3) Open usb/dvd download tool and select iso file on desktop
    4) Mount to usb drive
    5)If vmare doesnt recognize usb device, restart computer and open vmware before inserting usb drive.
    6)After succesfully mounting usb close vmware
    7)Download refit
    8)Install refit
    9)Shutdown computer
    10)Turn on computer and hold down option immediately
    11)Select refit
    12)Select windows icon
    13)Windows should begin to install
    This worked for me. I hope this helps.
     

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