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  1. #1


    Member Since
    Sep 08, 2009
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    3
    can i upgrade & how?
    i'm currently running on version 10.4.7 tiger but want to upgrade to leopard, is this easily done and will it totally format the drive which i'm hoping 4 ????

  2. #2

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
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    21,984
    Specs:
    Imac 27" Retina 5K, 512GB Flash Storage, 3.3Ghz, 16GB memory, OS X.11.5.
    G'day and welcome to the forums al.

    First up you need to be running a machine with at least an 867MHz processor ~ you have not supplied machine details. Purchase a full retail install version of Leopard and do an archive and install. If you opt for a clean install the drive will be wiped.

    All your old files etc will be stored in a folder named Old OS or similar under Archive and Install. Be aware some application s that work in Tiger may perhaps not in Leopard, such as Cache Cleaner.

    Also Leopard will require adequate memory, say 1.5/2GB.

  3. #3


    Member Since
    Sep 08, 2009
    Posts
    3
    hi harry, thanx 4 the reply.
    went on the system info page, looks like i've only got 1.25gb of memory so does that mean i'll have to stick with tiger?

  4. #4

    toMACsh's Avatar
    Member Since
    Jul 30, 2009
    Location
    Wisconsin
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    6,145
    Specs:
    Mac Mini (Late 2014) 2.6GHz Intel Core i5 Memory: 8GB 1600MHz DDR3
    Nah! It will probably run. See this info from apple:

    Mac OS X 10.5 - Technical Specifications

    It says 512MB of memory (RAM)
    9GB disk space

    But 1.5-2GB would obviously not hurt.

  5. #5


    Member Since
    Sep 08, 2009
    Posts
    3
    Ok i'll give it a go. thanx 4 the help !

  6. #6

    Collin Bl's Avatar
    Member Since
    Apr 07, 2009
    Location
    Napier NZ
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    3,297
    Specs:
    27 iMac i5, MBP 13 & iMac 20, 2TB dual TC, AppleTV, iPh4S
    I would probably go further than Harry and remove 3rd party apps from Tiger, do the Leopard Install and then download those same apps again for Leopard. For most Apps may not be essential but it is hard to know ahead of time which of the 3rd party ones will give you bit of a run round.

  7. #7


    Member Since
    Apr 09, 2009
    Location
    Ithaca NY
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    2,073
    Specs:
    13 inch alMacBook 2GHz C2D 4G DDR3, 1.25GHz G4 eMac
    I have leopard running on a 1.25GHz eMac with 512MB of memory. You'll be fine with 1.25GB. 1-2GB of RAM for leopard is over kill. I mean, it's nice, but definitely not necessary. Safari 4 opens on that eMac in 1 bounce. I couldn't believe it when I saw it. If you want to be running a ton of apps simultaneously, then I'd consider upping your RAM, but with 1.25GB you should be able to do a lot more than my fiancee does on the eMac and she can run probably 3 or 4 apps simultaneously (nothing too intense, of course).

  8. #8

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    21,984
    Specs:
    Imac 27" Retina 5K, 512GB Flash Storage, 3.3Ghz, 16GB memory, OS X.11.5.
    OP I was referring to the processor speed for the install to work, not the memory. 1.25GB will run Leopard but like everything else, more is better. As we do not know the model details, can't advise on how much memory you can actually install.

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