Upgrade from Tiger - is Clean Install Necessary or Recommended?

Hi Everyone,
I'm going to be updating 3 computers to Snow Leopard from Tiger - 2 MacBook Pros and an iMac.
After talking with several people, I got the impression that the Snow Leopard install would automatically perform a clean install. But after reading several posts on here, I assume this is not the case? Is a clean install recommended?
On one of the MacBook Pros, I will be upgrading the drive to a 500 GB before doing the Snow Leopard update - I am having the drive replacement done professionally, but will do the software update myself. Can I install that directly on the new drive or do other steps need to be taken?

Snow Leopard does not automatically perform what some people mean by a "clean install" meaning that it erases the drive and starts completely from scratch. The standard installation is closest to what older versions of Mac OS X did when using the "Archive and Install", where a completely fresh set of operating system files are installed but all the applications and user accounts (including their settings and documents) are preserved. For most uses, unless you've been having problems with one of the computers, the standard installation procedure should be fine. You'll want to confirm compatibility of all your applications and peripherals before you upgrade, and of course you'll want good backups of the systems. Most of us recommend making a full clone, using a utility such as Carbon Copy Cloner, so that you can easily go back to a working installation should anything go wrong.
You can if you wish do a truly "clean" installation by running Disk Utility from the Snow Leopard installation disk and erasing the drive. But, again unless the systems have been having problems, it's probably not necessary unless you want to clean out the "cruft" of old apps and settings anyway.
Regards.

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    Message was edited by: a brody

  • HELP! HOW DO I KEEP LOGIC WHEN UPGRADING FROM TIGER TO SNOW LEOPARD!

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    Message was edited by: macjack

  • Is it possible to upgrade from Tiger (10.4) to Leopard (10.5)? Thanks

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  • Upgrading from Tiger to SL or ML

    Hello all! 
    I have an old aluminium body MBP 17" Intel Core2Duo 2.4 GHZ with 2 GB of Ram.
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    Call me slow but I haven't upgraded my OS since I bought the machine. I'm still running Tiger (10.4.11) and since I'm going to upgrade my RAM to 4 GB and
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    Hi!
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    Now I'm in the process of copying important files, documents and music while also having to re-download a lot of my old software (since none of them work properly in Mountain Lion). Oh well, that's the price to pay for not upgrading sooner!
    Btw - maybe it's the wrong thread to ask in but I had a lot of stickies in Tiger (which I used everyday almost) - and I tried to copy the stickiesdatabase file over to ML but none of my Stickies show up?? I know ML wants us to use Notes instead of Stickies but since Stickies DO come with Mountain Lion, I wonder why I can't find the Stickiesdatabase file in Mountain Lion??
    P.S - Have no idea why my username on this forum changed. Oh well.

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