Snow Leopard; can I boot from disk image (DMG)?

Discussion in 'macOS' started by glossywhite, Aug 28, 2009.

  1. glossywhite macrumors 65816

    glossywhite

    Joined:
    Feb 28, 2008
    #1
    Hi. I just got Snow Leopard installed. Can I boot from DMGs? ... I hear you can, but can't find confirmation.

    Thanks :D
     
  2. glossywhite thread starter macrumors 65816

    glossywhite

    Joined:
    Feb 28, 2008
    #3
    How sure are you, and can you substantiate this?.
     
  3. Tallest Skil macrumors P6

    Tallest Skil

    Joined:
    Aug 13, 2006
    Location:
    1 Geostationary Tower Plaza
    #4
    How would it even be possible?
     
  4. glossywhite thread starter macrumors 65816

    glossywhite

    Joined:
    Feb 28, 2008
    #5
    Define "it"
     
  5. calderone macrumors 68040

    calderone

    Joined:
    Aug 28, 2009
    Location:
    Seattle
  6. tekio macrumors regular

    Joined:
    May 31, 2009
    #7
    You need to restore the dmg to a hd partition, usb key etc if you want to boot from it.
     
  7. Bassir macrumors member

    Joined:
    Aug 27, 2008
  8. calderone macrumors 68040

    calderone

    Joined:
    Aug 28, 2009
    Location:
    Seattle
    #9
    Alright genius, how would he use a Snow Leopard only feature to install his pirated copy of Snow Leopard if he doesn't already have Snow Leopard?

    Way to go genius, you caught him.
     
  9. glossywhite thread starter macrumors 65816

    glossywhite

    Joined:
    Feb 28, 2008
    #10
    Yes, granted - been doing that for three years, but my specific question is can I boot from an IMAGE.
     
  10. drlunanerd macrumors 65816

    drlunanerd

    Joined:
    Feb 14, 2004
    Location:
    UK
    #11
    You've evidently never used NetBoot.
     
  11. calderone macrumors 68040

    calderone

    Joined:
    Aug 28, 2009
    Location:
    Seattle
    #12
    From what I have read, you need to have partitions with a disk image stored on it. From the Appleinsider link I gave, it states you can only have one per partition this may have changed. I will give it a shot with an external drive with disk images on it.
     
  12. rockstarjoe macrumors 6502a

    rockstarjoe

    Joined:
    Jun 2, 2006
    Location:
    washington dc
    #13
    I'd also like to know if this is possible... this was a new feature I was looking forward to.
     
  13. novesire macrumors newbie

    Joined:
    Sep 5, 2009
    #14
    Me too. I guess they forgot to implement this feature...
     
  14. larkost macrumors 6502a

    Joined:
    Oct 13, 2007
    #15
    Being able to boot from a dmg is not a snow-leopard thing. Rather is is very similar to setting a manual netboot. You have to get a kenel in place, and then set the boot image to a file:// url. There are lots of little tricks to it, and so far I have only done it by scripts.

    Now there are huge caveats to it: the image is not mounted read/write, so it is really only useful for booting installer images.

    Eventually I will get around to figuring it all out and documenting it, but for the moment it is really not useful for most people.
     

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