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  1. #1

    JoshNathan's Avatar
    Member Since
    Dec 30, 2008
    iMac 27" i5 12gb RAM
    reinstalling lion without an internet connection or optical drive (Mac book air)
    Hello All,
    I have a problem with my Mac Book Air and i've tried everything. Basically it refuses to connect to my home network. i get a connection time out every time i try and connect (all other macs work). As a last ditch attempt i'm trying to reinstall lion (which it came with) however you need an internet connection or optical drive to do it, it seems.
    Is there anyway to factory reset and reinstall the op system without a connection or drive. Or is there a way to connect my imac to my macbook air to use its drive without an internet connection? this also raises the problem of where i get an install disk from as 2011 mac book airs did not come with one.
    Please help
    and thank you
    iMac 27" i5 12GB RAM
    MBP 13" in the near future
    iPad 32gb wifi
    iPhone 32gb

  2. #2

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Air 2, New AppleTV (4?)
    You can create a USB installer on a pen drive. If you don't have the required file on your MacBook you can get it from your iMac. Instructions on how to create the installer are here:

    Build your own Lion install USB thumb drive for cheap | TUAW - The Unofficial Apple Weblog
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

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