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I am trying to update from Mountain Lion to Mavericks using a DMG installer that I obtained over BitTorrent. I don't want to download it via the official App Store as I don't have good enough Internet connectivity to download the 5 GB file.

How do I install from this DMG file? I tried double clicking the DMG file, double clicking OS X Install, then clicking install; I am shown the software license agreement, and I accepted it, but nothing happens after accepting the software license agreement.

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hi napcae, i have already done that, upto agreeing apple's software agreement is ok, but nothing happens when i click install button after that – lg_shant Nov 26 '13 at 14:08
You'll want to show details about the file you run and perhaps document the steps you are taking to narrow down how your issue is different than how to make an installer as opposed how to use the installer you acquired from an alternate source than Apple. You might just have an old / corrupt / modified installer. – bmike Nov 26 '13 at 14:56
i have acquired file from torrent where it has been mentioned that it is from App Store and untouched. My steps: 1) double click dmg file 2) double click osx install 3) click install – lg_shant Nov 26 '13 at 15:03
@lg_shant I would assume that the torrented file is not correct – Mark Nov 26 '13 at 16:13
Your question title says "offline" -- are you disconnected from the internet when you're running the upgrade tool? If not, it may be doing a slow check to ensure the contents of the installer are valid and that it's the latest version of the OS -- try disconnecting from the internet in this case. If you ARE disconnected from the internet the hangup may be caused by the installer trying to contact Apple -- try connecting to the internet in this case and running the installer again. – Ian C. Nov 26 '13 at 17:21

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