Partitioning a bootable Flash drive

Posted by mmc on Super User See other posts from Super User or by mmc
Published on 2009-08-13T14:48:40Z Indexed on 2010/06/07 1:53 UTC
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Is it possible to have a 2 partition Flash drive that looks like the following:

  • A partition that is bootable to OS X (this will require a GUID partition table)
  • A second partition formatted either FAT32 or NTFS that is readable on both OS X and various flavors of Windows

I have set up a disk using Disk Utility on the Mac, and it boots fine with a second FAT32 partition... but Windows does not see it. Any flavor of Windows wants to format the entire drive.

Has anyone done this, and if so, can you explain the steps you followed?

EDIT: Making it bootable is no problem. I have that. I'm wondering how to make the second partition on a Flash drive visible to Windows. It's possible that the "second partition" is the problem, and I need Windows to be first, and HFS to be second. I'll try that tonight.

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