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Thread: Boot from DMG?

  1. #1

    Member Since
    Dec 24, 2006
    Boot from DMG?
    Local computer shop is closed today, and I'm very lazy

    Any way I can boot from a DMG on my friends Mac Mini, or will we have to wait until monday?

    The DMG is OS X Tiger, I want to do a clean install on it as he has messed it up

    I only have computer-specific discs, and he has lost his.

    (Although with a bit of luck, the retail discs i just purchased will be here soon).


    Can we boot from DMG?



  2. #2

    Chilbear's Avatar
    Member Since
    Jun 14, 2007
    2xiMac24 w Parallels 6 (1x White, 1x Aluminum), iPhone 3GS with iOS5
    I think you can connect to a "Target" during startup but not sure about starting from a Target.

    Google Apple and see. Never done that. How about a Disk Utility - you can startup from those as well.

  3. #3

    giulio's Avatar
    Member Since
    Mar 19, 2007
    NY USA
    iMac 5.1 | iMac 7.1 | iPod Touch | iPod Nano
    I don't think you can boot from a dmg. You need mac os x loaded in order to mount the dmg in the first place.

    You can netboot the entire OS from another machine. But I don't know how, Ive never done it.
    schweb This has to be one of the best threads ever in MF history...
    Cherokee This gets my vote for most innovative thread on Mac-Forums... ever.

  4. #4

    D3v1L80Y's Avatar
    Member Since
    Feb 02, 2004
    You cannot boot from an .DMG file. The OS has to load in order to mount an image, so there is no way to boot from that sort of file.
    Since you already ordered retail discs, you are in good shape, you will just have to wait until they arrive.
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  5. #5

    Member Since
    Dec 24, 2006
    Its okay

    1) I worked out, the easiest way to do it is to get an external hard drive and using OS X 'restore' the image to it, so the external hard drive acts like a bootable cd/dvd. Then just set the startup drive to the external one, and it works without a flaw.

    2) Like you said D3v1l80Y, I have ordered the retail discs anyway.

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