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  1. #1
    FAT formatting does not work on Firewire only.
    Dysfunction's Avatar
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    FAT formatting does not work on Firewire only.
    Well, this is interesting. I took a FW800 drive today (hitachi g-tech) that works great. Repartitioned it using HFS+ and FAT (MS-DOS FAT) using Disk Utility.

    Awesome right?

    Well, despite the fact that a linux box, a windows box, and a Snow Leopard box will mount the FAT drive just fine... the Lion box that formatted it? Yea.. not so much.

    It mounts as a USB drive, connect it to FW and it just fails with.

    11/11/11 2:15:45.046 PM diskarbitrationd: unable to probe /dev/disk2s3 (status code 0xFFFFFFFC).

    11/11/11 2:15:45.000 PM kernel: disk2s3: I/O error.

    So, anyone else with Lion.. give this a try.


    Interestingly enough, I get the following window in disk utility.

    Screen Shot 2011-11-11 at 2.27.59 PM.png
    mike
    This machine kills fascists
    Got # ? phear the command line!

  2. #2
    FAT formatting does not work on Firewire only.
    vansmith's Avatar
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    Have you tried mounting it manually (although I assume this is how DU does it anyway)? This seems like an odd issue.
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  3. #3
    FAT formatting does not work on Firewire only.
    Dysfunction's Avatar
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    Yep. Same result.

    Off to perform the Mac version of reboot... zapping the PRAM
    mike
    This machine kills fascists
    Got # ? phear the command line!

  4. #4
    FAT formatting does not work on Firewire only.
    Dysfunction's Avatar
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    and that didn't work.

    I'm chalking it up to another Lion bug. w00t.
    mike
    This machine kills fascists
    Got # ? phear the command line!

  5. #5
    FAT formatting does not work on Firewire only.
    vansmith's Avatar
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    Quick question - do both partitions have the same name? This old hint seems to suggest that OS X doesn't like two partitions with the same name.

    I'm in the dark here - if I find something, I'll post back.
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  6. #6
    FAT formatting does not work on Firewire only.
    Dysfunction's Avatar
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    same name? nope.

    If it was the name issue, I'd imagine it'd be a problem as a USB device too.
    mike
    This machine kills fascists
    Got # ? phear the command line!

  7. #7
    FAT formatting does not work on Firewire only.
    Dysfunction's Avatar
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    reformatted the slice exFAT, and now it works.

    /dev/disk1s2 on /Volumes/export (hfs, local, nodev, nosuid, journaled, noowners)
    /dev/disk1s3 on /Volumes/exFatTest (exfat, local, nodev, nosuid, noowners) <-----
    mike
    This machine kills fascists
    Got # ? phear the command line!

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