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  1. #1
    iMac not allowing normal boot

    Member Since
    Apr 16, 2007
    Posts
    4
    Unhappy iMac not allowing normal boot
    I have tried to install mac os x tiger onto an iMac but the install says it is not compatible and now I cannot reboot into mac 9.1 as the installer for tiger runs from my hd. Can someone please help me reset this? (I have lost the cd for Mac 9.1 and for some reason the admin rights have locked it down to not read from the cd automatically)

    Thanks

  2. #2
    iMac not allowing normal boot
    christm's Avatar
    Member Since
    Dec 18, 2005
    Location
    Devon, England
    Posts
    2,288
    Specs:
    ibook g4, imac 2ghz c2d, mbp 2.4ghz c2d - 10.5.1
    what imac machine is it ?

    and specs.

  3. #3
    iMac not allowing normal boot

    Member Since
    Apr 16, 2007
    Posts
    4
    it is a power mac 2 pro, spec wise

    i think

    G3
    dvd rom
    256 ram
    i arnt sure on the rest sorry i cant be more specific

  4. #4
    iMac not allowing normal boot
    narf1899's Avatar
    Member Since
    Feb 05, 2007
    Posts
    465
    Specs:
    iMac 20" C2D 2.4 ghz 2gb iMac 20" C2D 2GB 256MB Graphics Macbook C2D 2GB Powermac G4 Dual 450
    is it like....a tower or an all in one
    iMac Aluminum 20" 2.4 ghz 2gb RAM 300gb HD
    iMac 20" Core2duo 2gb 250gb
    Macbook White Core2duo 2gb 80gb
    Powermac G4 dual 450

  5. #5
    iMac not allowing normal boot

    Member Since
    Apr 16, 2007
    Posts
    4
    all in one old school colour mac

  6. #6
    iMac not allowing normal boot
    DaYCEnt's Avatar
    Member Since
    Feb 18, 2007
    Location
    Knoxville, TN - USA
    Posts
    107
    Specs:
    iMac 20, Intel Dual Core 2.3GHz, 1Gb RAM, 256Mb Video; G4 tower 444Mhz w/ 1G RAM, 2x G3 towers
    i thought OSX required a G4 or better??

  7. #7
    iMac not allowing normal boot
    christm's Avatar
    Member Since
    Dec 18, 2005
    Location
    Devon, England
    Posts
    2,288
    Specs:
    ibook g4, imac 2ghz c2d, mbp 2.4ghz c2d - 10.5.1
    i think tiger has to have a G4. not sure tho.

  8. #8
    iMac not allowing normal boot
    Alexis's Avatar
    Member Since
    Apr 20, 2006
    Posts
    2,255
    Specs:
    Al iMac 20" 2.4Ghz Intel Core 2 Duo
    Tiger runs fine on a G3.

    You need to install OS 9, update to 9.2.2, update the firmware which is available on the Apple site and then install Tiger.

    Bear in mind 256Mb is a paltry amount though! Things get better with 364Mb.

    Also remember that you need the retail version of Tiger - a disc that came with a MacBook for example will not work.

  9. #9
    iMac not allowing normal boot

    Member Since
    Apr 16, 2007
    Posts
    4
    Ok this is exactly what i did and the error i get on a mac g3 running mac 9

    I tried to boot mac osx from the dvd (however this failed as the admin rights wouldn't allow this), then i copied the dvd to my desktop and then restarted into this boot however with the incompatibility of OSX it does nothing. Now I want to be able to boot back into mac 9.1 however I am unable to find command to help me do this through open firmware 3. Anyone that can help i am more than appreciative, as i am a novice when it comes to mac os and i am trying to upgrade because i would like to get used to the system before i eventually switch over from windows on the complete release of vista.

    Again anyone that can help thanks

  10. #10
    iMac not allowing normal boot

    Member Since
    Apr 17, 2007
    Posts
    225
    Sorry guys, somehow I posted in the wrong thread...

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