File system migration problems

Discussion in 'Mac Basics and Help' started by dobdobby, Jun 1, 2011.

  1. dobdobby macrumors newbie

    Jun 1, 2011
    Hi all,

    My MbP HD recently corrupted and I hadn't backed up for a while (now I know the value of 30s setting up time machine!) but I managed to copy everything to an external USB drive in single-user mode, format the HD and reinstall OS X.

    The data appears to have transferred fine and is perfectly usable, and I now want to migrate my old system onto my new system to keep all my apps etc. Unfortunately being a bit of a computer luddite I hadn't considered file systems when backing up. The backup disc is a .dmg but in FAT32 format, which I assume is the reason Migration Assistant doesn't recognise it as an importable entity.

    Is there a way to convert this FAT32 .dmg to HFS+ ?? At the moment I'm copying the image to an HFS+ drive to see what mounting it there will do.
  2. wrldwzrd89 macrumors G5


    Jun 6, 2003
    Solon, OH
    There's a command-line utility that can convert images to and from various formats, and perform various changes on DMG files. It's called hdiutil. Read about its features and syntax for its use here.

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