Can I Partition My Mac Drive After Installing Windows Through Bootcamp?

Discussion in 'Windows, Linux & Others on the Mac' started by cubby03, Nov 10, 2009.

  1. cubby03 macrumors member

    Nov 21, 2008
    Hoping someone can help as I cannot find a straight answer on this, perhaps I am doing something wrong? I wanted to install Windows XP on my iMac. I previously had partitioned my Mac drives. I backed everything on these drives to my external and blew the partitions away creating my one Mac drive again.

    I then ran Bootcamp, created a partition and installed XP. Everything was fine. I then partitioned my main drive and got the warning message about Bootcamp maybe not working afterwards. So I finished partitioning my Mac drive as I wanted and now I don't have the option of booting into XP through Bootcamp. When I try it just shows the Mac drive as my only boot option. I see the XP Bootcamp drive in the System Preferences startup disk area, but I assume I did something to the partition once I partitioned my Mac drives.

    I don't mind installing it again, is there a way to partition for Bootcamp and then partitioning my Mac drive afterwards? Thanks if anyone can be of assistance. :)
  2. gugucom macrumors 68020


    May 21, 2009
    Munich, Germany
    You need to edit the boot.ini file in the Windows root directory. It will show a partition count (3) for booting. If you have added one partition you need to increase the partition count for Windows to (4). This is because you have one invisible EFI partition that isn't indicated in disk utility. Be aware that the max number you can use for Windows to still boot is 4.

    If XP runs on an NTFS file system you need to install an NTFS driver. Paragon provides a test version that will let you make the edit.

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