clean install / upgrade question

Discussion in 'OS X El Capitan (10.11)' started by conamor, Dec 10, 2015.

  1. conamor macrumors 6502


    Jun 27, 2013
    Good day!

    I finally decided to wipe my iMac and reinstall el Capitan after always upgrading from lion.

    My steps:
    1- Backup!
    2- boot while holding command and R and delete the partition
    3- for some odd reason I couldn't do the reinstall from there, it was connecting to the app store but was saying that it was not available.
    4- reboot holding command, alt and R.
    5- it downloaded something, reinstalled the first OS I had when I bought the iMac (Mountain Lion, I believe)
    6- download El Capitan from the app store and it reinstalled.

    From what I can see is that I am again, doing an upgrade? Is there any way to do a clean install for El Capitan, or maybe you can tell me that this upgrade is doing nothing bad? (like M$...)

    Thanks for all your input! :)
  2. KALLT macrumors 601

    Sep 23, 2008
    It is fairly 'clean'. But if you want, you can try it again with a bootable thumb drive. You can find instructions here: Then you press option while booting and boot into the thumb drive. There you format the drive and install.
  3. conamor thread starter macrumors 6502


    Jun 27, 2013
    I also noticed that I never was able to choose the type of format, quick, 1 pass 0's, etc... Is it possible with the USB drive?
  4. KALLT macrumors 601

    Sep 23, 2008
    It certainly is possible, you might have just missed it.

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