Upgrade VS Clean Install - My Findings

Discussion in 'macOS' started by IceflowStudios, Aug 29, 2009.

  1. IceflowStudios macrumors newbie

    Joined:
    Sep 11, 2007
    #1
    Hey, everyone. Like most, I was debating whether or not to just upgrade to SL, or do an Erase and Install. I decided to try both and note my findings and post my steps below.

    Running a Unibody Macbook Pro. 2.93 GHz, 4GB Ram

    Short answer: The clean install is running a LOT smoother than the straight upgrade.

    The first thing I did, was run a full Time Machine backup on Leopard, just in case the worst happens. In my backups, I exclude all VMs and System Files.

    Once the backup was complete, I went ahead and ran the SL upgrade. The installation process was very smooth. Took about 48 minutes to complete. When the system finally booted up again, I noticed that many aspects of the OS were running a lot slower than they should have, and I was experiencing many of the 'bugs' you guys have noted.

    -Animations such as dock magnification, spaces, and expose were very '-'laggy'.
    -Using the 4 finger gestures returned weird results when repeated. (Swiped up, desktop shown. Swiped up again, animation down, then back up again)
    -Icons were all over the place.
    -Asian characters floating around the OS.

    I decided to give a clean install a shot. either install Leopard, then run the SL update, or an Erase and Install from the SL disk. But DO NOT restore your backup until SL is fully installed.

    Now, once SL is back up and running, head into your Migration Assistant and start your restore. This took about and hour and a half to complete.

    Once that was complete, I gave the system a reboot and checked things out.

    -System was running VERY smooth. No animation lag. Expose and Spaces were running like normal, even with many windows open.
    -4 finger gestures were acting like they should, and did in Leopard. Very smooth.
    -No more random Asian characters.
    -Overall a much more flawless OS.

    For all I know, some of you may be happy with your straight SL upgrade, but I've read many threads where people have been noting 'bugs' which I experienced as well, before the clean install.

    If you have the time, and patience, I definitely recommend running a backup, then an Erase and Install of Leopard/SL.

    Hope this helps.
     
  2. lars666 macrumors 6502a

    Joined:
    Jul 13, 2008
    #2
    Why first installing Leopard again and then SL and not directly do an "Erase and Install" with SL? (which is possible with the SL disc) Will there be a performance difference?
     
  3. Abcmsaj macrumors member

    Abcmsaj

    Joined:
    Jun 9, 2009
    #3
    Thanks Howard. I was getting ths problem:

    -Using the 4 finger gestures returned weird results when repeated. (Swiped up, desktop shown. Swiped up again, animation down, then back up again)

    And I thought the GM version I have was full of bugs. Turns out a clean restore is all I need! I'll pop in the SL disc later after a backup, and Erase and Install :)
    :apple::D
     
  4. Corrode macrumors 6502a

    Corrode

    Joined:
    Dec 26, 2008
    Location:
    Calgary, AB
    #4
    +1

    According to reports, you shouldn't need an existing installation of Leopard before installing Snow Leopard. In fact, your method is not an Erase and Install, it is still an upgrade from Leopard, albeit a 'cleaner' one, but definitely not a Clean Install.
     
  5. ste1989 macrumors member

    Joined:
    Jun 11, 2009
    #5
    I upgraded and had the spaces acting weird.
    But I simply turned the computer off, and then when I came back to it hours later it runs fine, no lag, nothing
     
  6. ankit macrumors member

    Joined:
    Jan 6, 2004
    #6
    Just for the record, I did an upgrade from a 2 month old Leopard install, and everything works as expected. None of the issues you have mentioned.
     
  7. G.T. macrumors 6502a

    Joined:
    Jul 12, 2008
    #7
    Has anyone had a good experience with the upgrade choice as in it was no different to a clean install and everything works fine?
     
  8. t0mat0 macrumors 603

    t0mat0

    Joined:
    Aug 29, 2006
    Location:
    Home
    #8
    I'd second IceflowStudios' findings. I didn't time the systems, but I did an upgrade from Leopard to Snow Leopard, then after a while, did a clean install.

    Didn't bother with migration assistant.
    I'd agree with:

    -System was running VERY smooth. No animation lag. Expose and Spaces were running like normal, even with many windows open.
    -Overall a much more flawless OS.

    "If you have the time, and patience, I definitely recommend running a backup, then a clean install of Leopard/SL."
     
  9. racer1441 macrumors 68000

    Joined:
    Jul 3, 2009
    #9
    I did an upgrade to my white macbook. It was going to be my test SL machine for a week or so.

    Went sooooo great, the other two are going to be upgraded today.

    Another huge win for Apple!
     
  10. GoCubsGo macrumors Nehalem

    GoCubsGo

    Joined:
    Feb 19, 2005
    #10
    This is great news but now I am worried that the UTD DVDs aren't going to allow for a clean install. If that is the case I'm off to buy the $29 retail box.
     
  11. auhlixer macrumors regular

    Joined:
    Apr 15, 2006
    Location:
    Philadelphia, PA
    #11
    I couldn't find the erase and install option in SL

    Even though i have done it every time I have gone to the next level. Did they move it?
     
  12. g725s macrumors member

    Joined:
    Aug 28, 2009
    #12
    "Clean Install" is a Window PC term.

    "Erase and Install", a Mac term, is what I believe your referring to.
     
  13. Pegasus665 macrumors member

    Pegasus665

    Joined:
    Jul 6, 2009
    Location:
    Bristol, UK
    #13
    Upgraded it as only had the machine for a month so not much installed/personalised to clog up the system. No problems at all.
     
  14. Lurchdubious macrumors 65816

    Lurchdubious

    Joined:
    Oct 15, 2008
    Location:
    Texas
    #14
    I've had my Unibody MB for 9 months now. Last night I just did the SL upgrade, no erasing, and it's working just fine and noticeably faster.
     
  15. pb1300 macrumors 6502a

    Joined:
    Feb 29, 2008
    Location:
    Aigio, Greece
    #15
    How exactly do you do an "Erase and Install?" Do you first have to do that with Leopard, then upgrade with Snow Leopard, or do you just have to boot from the Snow Leopard CD and hit Erase and Install?
     
  16. zen macrumors 68000

    zen

    Joined:
    Jun 26, 2003
    #16
    Upgraded my iMac rather than clean install. Things running perfectly with hugely noticeable speed improvement.

    The clean install concept is out of date. This isn't the 20th century! :D
     
  17. edtorious macrumors 65816

    edtorious

    Joined:
    Aug 14, 2007
    Location:
    San Diego, California
    #17
    how do you clean install snow leopard instead of upgrading:confused:
     
  18. pb1300 macrumors 6502a

    Joined:
    Feb 29, 2008
    Location:
    Aigio, Greece
    #18
    I am not going to do it on my MB which is about 4 months old, but I do want to do it on my imac which is about 2+ years old.
     
  19. N10248 macrumors 6502a

    N10248

    Joined:
    Jun 11, 2004
    Location:
    Essex, U.K.
    #19
    If I do an Erase and Install will I still be able to install the iLife 09 Apps from my iMac's 10.5 Leopard restore discs or will it argue that its an unsupported system or something similar?

    otherwise i'm limited to upgrading only
     
  20. jlpoore89 macrumors 6502

    Joined:
    Feb 16, 2009
    Location:
    Beaumont, Texas
    #20
    I did an upgrade yesterday on a 6 month old uMBP. The only problem that I have found is that the new "Battery Condition" feature doesn't show up in the menu bar drop down. I had a friend who did an upgrade on a 2007 MBP and it shows up on his drop down menu.
     
  21. blahbrah macrumors 6502

    Joined:
    Nov 9, 2006
    #21
    I'm on a C2D Blackbook and I upgraded. No problems here. Although I've yet to see autocorrect in action.
     
  22. VSMacOne macrumors 601

    VSMacOne

    Joined:
    Oct 18, 2008
    #22
    I upgraded yesterday and the only issue i'm having is with sleep. My MB will not stay asleep now. Never had issues with Leopard.
    So now, i'm considering a CLEAN install, but I've got my worries about Entourage files. Will they be automatically restored by the Migration Assistant?
     
  23. amoergosum macrumors 6502

    Joined:
    Oct 20, 2008
    #23

    I have the same question.
     
  24. kas23 macrumors 603

    kas23

    Joined:
    Oct 28, 2007
    #24
    Is there no longer an Archive and Install option?
     
  25. shady825 macrumors 68000

    shady825

    Joined:
    Oct 8, 2008
    Location:
    Area 51
    #25
    I used super duper to clone my drive before doing a fresh install.
    Everything seems to be working great.
    Time Machine decides to leave certain files out but a clone is obviously the best way to assure your files will remain in tact.
    Hope you get your sleep problem figured out man!
     

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