Is the any important difference between upgrade and clean install?

Discussion in 'Mac OS X Lion (10.7)' started by diegobgr, Apr 25, 2012.

  1. diegobgr macrumors 6502

    Joined:
    Nov 22, 2009
    #1
    Hi.

    I usually read that clean install is better than upgrade but is there any difference in terms of performance or boot times?

    What have you experienced?

    I have to say that I am taking about from upgrading from a SL fresh install.
     
  2. charlieegan3 macrumors 68020

    charlieegan3

    Joined:
    Feb 16, 2012
    Location:
    U.K
    #2
    if you can get away with it go with a clean install, gives you a complete purge of that disk to iron out potential errors.
     
  3. diegobgr thread starter macrumors 6502

    Joined:
    Nov 22, 2009
    #3
    But the disk just has a Snow Leopard fresh copy, installed today.
     
  4. charlieegan3 macrumors 68020

    charlieegan3

    Joined:
    Feb 16, 2012
    Location:
    U.K
    #4
    Chances are then no difference.

    However, if there is no user files on the disk I would go with a clean install, same time, and just cleaner.
     
  5. diegobgr thread starter macrumors 6502

    Joined:
    Nov 22, 2009
    #5
    And best method?

    Thumb drive? Internet recovery?

    Thanks!
     
  6. Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #6
    I went with creating a bootable Lion install drive. The advantage is that you only need to download Lion installer once to create the bootable install drive.
     
  7. diegobgr thread starter macrumors 6502

    Joined:
    Nov 22, 2009
    #7
    And what about the fact that you need to install Flash and Java by yourself as there are no more included in the OS?

    Is it safe?
     
  8. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #8
    The clean install provides you with the best odds that nothing hanging around on the drive will potentially cause instability or performance issues. I go with a clean install when I can. I did that with Lion and I've not run into any problems.
     
  9. Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #9
    Just make sure you download Flash from the official Adobe website and you should be good to go. Go to Apple downloads wesbite and load Java from there.
     
  10. diegobgr thread starter macrumors 6502

    Joined:
    Nov 22, 2009
    #10
    Ok, I will do that.

    I only download apps from Mac App Store, except things like Adium and stuff like that. I mean that I don't use piracy software.

    I use to download media but not software.

    Thank you.

    It's the better to create the thumb drive with Lion installed or it doesn't matter?
     
  11. Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #11
    I created a bootable Lion install on a external portable HD. In my opinion, it can't hurt. Sometimes you might need to do a re-install. I took that same external HD, partitioned it with one partition containing the bootable Lion install HD and the other partition having a basic clean install of Lion. I put DiskWarrior on the clean Lion install partition and use it if I need to run DiskWarrior on any of my 3 Mac computers.
     
  12. robgendreau macrumors 68030

    Joined:
    Jul 13, 2008
    #12
    Apple engineers no longer provide an option for a "clean install." It's a thing of the past.

    You can accomplish the same thing by just completely erasing/formatting your hard drive and installing new system software, and then installing all your applications, user files, software, etc.

    There is really no need to do erase your drive when installing Lion unless you have some other need to do so. Just make sure you have a good backup. If the Lion installation goes crazy, THEN you could do the erase and reinstall Lion or restore your old software. In my experience the standard, Apple-recommended way of installing Lion works fine and is usually quicker.
     
  13. Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #13
    I have seen reported by some users that after they did a clean install (erase first then install) they saw a definate performance improvement over when they only had done a install over Snow Leopard. I always like to do a clean install as it gives me the chance to clean out anything that may be old and left over from the previous OS install.
     
  14. MisterMe macrumors G4

    MisterMe

    Joined:
    Jul 17, 2002
    Location:
    USA
    #14
    Clean Install was not intended to be a routine upgrade technique. It was intended to be a radical solution to vexing problems. The notion that a Clean Install is superior to a Simple Upgrade is borne of equal parts arrogance and ignorance. It is the kind of arrogance that falls for the false belief that handcrafted products are superior to those built by automation. It is the kind of ignorance that does not think things through. Few Mac users would argue that Windows is more reliable than MacOS X. In fact Windows receives immeasurably more upgrades and fixes than MacOS X. I also understand that Windows users routine wipe their OS to solve vexing problems. However, it is inconceivable that more than a noise-level percentage of Windows fans would recommend routinely wiping a Windows installation as an update strategy.

    I have been a Mac owner since 1989. I have used every Mac operating system between System 6.0.1 through MacOS X 10.7.3 except System 7 Pro. Every OS upgrade that I have ever done has been a simple upgrade. There have been the rare occasion that something went wrong forcing me to Archive & Upgrade or Clean Install. Archive & Upgrade is bad enough requiring hours of work to return to my previous productive state. Clean Install required days if not the better part of a week. If I were so dumb as to routinely perform clean installs, then I would have lost months of productivity restoring my computer to its pre-update state.
     
  15. Skip Paris macrumors newbie

    Joined:
    Feb 1, 2010
    Location:
    USA
    #15
    " The notion that a Clean Install is superior to a Simple Upgrade is borne of equal parts arrogance and ignorance. It is the kind of arrogance that falls for the false belief that handcrafted products are superior to those built by automation. It is the kind of ignorance that does not think things through."

    Nothing Arrogant or Ignorant about that statement MrMe.. LMFAO
     

Share This Page