What would you be doing? Clean Install or Upgrade?

Discussion in 'OS X Yosemite (10.10)' started by hirtaza, Jul 21, 2014.

  1. hirtaza macrumors member


    Apr 20, 2014
    I was just wondering when Yosemite FINAL version gets released? what would you guys be doing? clean install or upgrade from the Macstore?:apple:
  2. bradl macrumors 68040


    Jun 16, 2008
    1. Time machine backup.
    2. Clean install.
    3. Migration assistant using Time Machine backup as source.

  3. 576316 macrumors 601

    May 19, 2011
    I'll probably just be doing an upgrade. I don't really want to go to the effort of doing a clean install when it's not really necessary.
  4. hirtaza thread starter macrumors member


    Apr 20, 2014
    I wanted to do that too but I heard it gets pretty slow if you do an upgrade (happened to my brother's macbook when mavericks comes out)
  5. ironman159 macrumors regular


    Aug 30, 2008
    Costa Rica
    Been upgrading since my first MacBook that came with Leopard circa 2008. Nothing has slowed down. I must confess I've changed hard drives but my main image has never gone through a clean install. You'll do alright.
  6. klamzi macrumors member

    Jun 13, 2014
    Don't realy plan to use as main OS.
    But will do a clean Install on external drive.
  7. hyperpiper45 macrumors regular

    Dec 11, 2007
    Calgary, Canada
    I will just upgrade. Never had any problems and it's the easiest option.
  8. DiscardedPacket macrumors member

    Mar 8, 2013
    I've been running the same profile since 10.6. No issues.
  9. 576316 macrumors 601

    May 19, 2011
    I saw no evidence of things slowing down when I upgraded to Mavericks on my MacBook.
  10. Nermal Moderator


    Staff Member

    Dec 7, 2002
    New Zealand
    I always clean install. It's not really required but it's a good opportunity to clean out all the stuff that I don't need anymore :p
  11. AndyK macrumors 65816


    Jan 10, 2008
  12. Icaras macrumors 603


    Mar 18, 2008
    California, United States
    I used to always do a clean install, but since Mountain Lion, I always upgrade now and will continue to do so with Yosemite.
  13. 212rikanmofo macrumors 65816

    Jan 31, 2003
    Upgrade, cause I don't want to take all day to reinstall and setup everything.
  14. greenmeanie macrumors 65816


    Jan 22, 2005
    Clean Install for me I like a fresh system when installing a new OS.
  15. mmomega macrumors demi-god


    Dec 30, 2009
    DFW, TX
    I always clean install.

    Since fast USB 3 drives, it really does not take long at all. I keep all major data on my server and externally anyway so to me it's no issue.

    + this gives me my annual clean unnecessary crap off of my computer day.
  16. philipk macrumors 6502

    Jun 11, 2008
    That is what I normally do. It is amazing how much free space I gain.

    However, this time will be different. I did a clean install with Mavericks on my two laptops due to an issue of my own making. And I just purchased a new iMac.

    So this time it will (probably) be an upgrade.
  17. BrettApple macrumors 65816


    Apr 3, 2010
    Heart of the midwest
    I always clean install on my MacBook's, but we have an iMac that has been upgraded from Tiger! As in Tiger - Leopard - Snow Leopard - Lion - Mountain Lion - Mavericks - Yosemite. And it's still working just fine! I did swap it to an SSD to help with the speed once Mavericks hit, and upgraded to 4GB RAM from 2GB, which was up from the stock 1GB. :cool:

    Only reason I clean install is to clear up random stuff I've forgotten about on my SSD. In the past it was only a 120GB in the optical bay, with a 750GB to complement it. But since I've moved to a 256GB model, it won't be as much of a crunch. But seeing as buggy as the stock install of Mavericks has been on my rMBP, I'm clean installing anyway.
  18. iPhil macrumors 68040


    I started with Lion on my current mini (late 2011 - it was like month or 2 before 4000 iGPU minis came out) upgraded Mountain Lion > Mavericks> soon to be Yosemite .. All upgrades no clean install / no slowdowns etc ...
  19. bobbytomorow macrumors 6502


    Nov 10, 2007
    Left Coast
    Clean install for me, I always seem to run into issues with upgrades and its so easy now with fast SSD's and dual drive MacBook's. May as well start fresh eh
  20. sualpine macrumors 6502


    May 13, 2013
    This is not an academic debate. The benefits of clean installs are provable, pragmatic, and necessary.

    It has nothing to do with Apple, OS X, or Macs.

    Any software engineer will attest to this.

    See for example:


    The same exact issues happen with OS X, (and all software).
  21. blakek macrumors member

    Apr 26, 2013
    update, not really a point to fresh install

    too much trouble
  22. g-7 macrumors 6502


    Feb 14, 2006
    On my iMac internal SSD: upgrade. I don't have time to copy and reinstall everything. Also, I have never used Migration Assistant or CCC to copy old data, I don't trust those. When I do a clean install, I move all the essential stuff myself, so there is no unnecessary garbage left at all.

    On my external HDD: clean install. I need a plain OS for testing, or just saving the day when something bad happens and I cannot boot from the internal drive (no, that Recovery Partition isn't the answer).
  23. z06gal macrumors 6502a

    Aug 30, 2011
    Upgrade. I used to do fresh installs but I honestly don't notice any difference so now I just go with upgrades :cool:
  24. nefan65 macrumors 65816


    Apr 15, 2009
    I've done the last few upgrades [10.7 - 10.9] both ways; 10.7/10.8 Clean install. 10.9 upgrade. Couldn't tell the difference either way. I found no speed increases, or slow downs. I think the whole wipe and reinstall clean makes sense if you have had issues. But if things are working fine, I don't see the need.

    I tend to think its the placebo affect...
  25. grahamperrin macrumors 601


    Jun 8, 2007

    If Yosemite is preferable: backup, then simply upgrade.

    Benefits, if any, from a clean installation may be short-lived and/or negligible.


    Before Mac OS X, clean installation could be a drastic step within a troubleshooting routine.

    Mac OS: When and Why to Perform a Clean Installation

    A few years later, around the time of Snow Leopard, we find clean installation ('erase install') suggested by Apple only if there's an irreparable problem with the HFS Plus file system:

    Troubleshooting Mac OS X installation from CD or DVD – Apple Support

    – and from the archived (outdated) article to which that troubleshooting article refers:

    Nowadays, it's extremely rare for Apple to require or suggest a clean installation.

    Mavericks Server Admin: SSH key fingerprints – a server administrator might choose to perform a clean installation.

    OS X: How to erase and install – Apple Support

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