4 Replies Latest reply: Jul 13, 2012 12:42 PM by Neville Hillyer
ptur12345 Level 1 (0 points)

well, i have lost my mac os x install disc, and i want to reset my imac, cus there is a problem with java, what do i do? :-/

iMac, Mac OS X (10.5.8), it a imac 10.5.8 from 2008 :-/
  • Kappy Level 10 (263,335 points)

    You can purchase replacements from AppleCare:


    Apple Store Customer Service at 1-800-676-2775 or visit online Help for more information.

    To contact product and tech support visit online support site.

    Or you can purchase Snow Leopard from Apple's Online Store and upgrade your iMac if it otherwise meets the requirements:

    Snow Leopard General requirements


    • Mac computer with an Intel processor
    • 1GB of memory
    • 5GB of available disk space
    • DVD drive for installation
    • Some features require a compatible Internet service provider; fees may apply.
    • Some features require Apple’s MobileMe service; fees and terms apply.
  • Neville Hillyer Level 4 (1,860 points)

    Please define "reset".


    Perhaps it can be fixed.


    What exactly is the problem?

  • a brody Level 9 (65,365 points)

    Java on 10.5.8 is very limited.  https://discussions.apple.com/docs/DOC-3261 explains why.

  • Neville Hillyer Level 4 (1,860 points)

    Backup first

    It is always best to have a full bootable backup before you upgrade. If you fail to do this you will be unable to return to this OS if you decide you don't like the new OS. Also there is a slight chance that an install could lose everything on the Mac. The backup must be to an external hard disk. Preferably use Carbon Copy Cloner to make a bootable backup of the whole disk.


    Erase before the install

    Once you have a bootable backup on an external disk it is best to erase the internal disk with the new installer DVD before you install.


    During the install

    Preferably do not import any data or preferences from earlier OSs during the install process as this can reintroduce bugs.


    OS numbers and names

    OS X 10.4.x - Tiger

    OS X 10.5.x - Leopard

    OS X 10.6.x - Snow Leopard

    OS X 10.7.x - Lion

    OS X 10.8.x - Mountain Lion


    More about Macs

    The Apple History site has specifications for every Mac ever produced: http://www.apple-history.com/


    Upgrade to Leopard

    Those wishing to upgrade to Leopard should be aware that install disks can be expensive unless you contact Apple. Details: http://lowendmac.com/deals/best-os-x-leopard-prices.html Standard Leopard installers impose several hardware limitations including speed and RAM size but all these restrictions can be overcome. Google for details. Leopard works well at 500 MHz with 1 GB of RAM and many happy users have less than this.


    Upgrade beyond Leopard

    OSs beyond OS X 10.5.8 require an Intel processor. If in doubt check this: Click the apple at the top left of your screen and select 'About this Mac'. This will give you your OS number. Then click 'More Info' to see which processor you have. If it says PowerPC you cannot upgrade to Snow Leopard and above. If you have an Intel Mac it is well worth upgrading to Snow Leopard now and then considering other options after that. You can buy Snow Leopard here: http://store.apple.com/us/product/MC573Z/A


    Upgrade beyond Snow Leopard

    Information about upgrading Snow Leopard to Lion or Mountain Lion: http://store.apple.com/us/product/MD256Z/A



    Check that your Mac complies with any requirements. If you are not in the US you should use the Change Country link at the bottom of Apple pages.