winslowmac
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Q: OS9 on a new HDD

Hi all......I just replaced my HDD in my G4 MDD with a larger drive and installed Leopard 10.5.8.......I still want to run OS 9 because of ALL the software I have for it (CLASSIC GAMES,LOL). Can I install OS 9 on a different HDD and boot from it? I have the original disk. All the info I have read tells me to install OS 9 first on a partition then OS 10 on the main HD. any help will be greatly appreciated. Gary

mdd fw400 dual 1.25, Mac OS X (10.5), 2 superdrives-2 gb mem-2 ata100 drives-geforce 7800-pci scsi-pci

Posted on Nov 8, 2014 9:58 AM

by a brody,Solvedanswer
a brody a brody
Level 9 (66,876 points)
Classic Mac OS
A:

Yes.

 

Just make sure the other hard drive has Mac OS 9 drivers installed first before attempting to install Mac OS 9.

Posted on Nov 9, 2014 5:45 PM

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winslowmac

Q: OS9 on a new HDD

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  • by a brody,Solvedanswer

    a brody a brody Nov 9, 2014 5:45 PM in response to winslowmac
    Level 9 (66,876 points)
    Classic Mac OS
    Nov 9, 2014 5:45 PM in response to winslowmac

    Yes.

     

    Just make sure the other hard drive has Mac OS 9 drivers installed first before attempting to install Mac OS 9.

  • by a brody,

    a brody a brody Nov 9, 2014 5:46 PM in response to winslowmac
    Level 9 (66,876 points)
    Classic Mac OS
    Nov 9, 2014 5:46 PM in response to winslowmac

    Yes, just make sure the other hard drive has Mac OS 9 drivers installed first before attempting to install Mac OS 9.

  • by winslowmac,

    winslowmac winslowmac Nov 10, 2014 10:18 AM in response to a brody
    Level 1 (0 points)
    Nov 10, 2014 10:18 AM in response to a brody

    Thanks for for your response a brody. My second HDD is set up for TIME MACHINE, or do I even need TM.......Can I Partition it for the OS9? It is 300 GB. How much can I Partition it for and what format for OS9?

     

    Thank You again for all help....Gary

  • by Don Archibald,Helpful

    Don Archibald Don Archibald Nov 13, 2014 11:51 AM in response to winslowmac
    Level 10 (101,435 points)
    Nov 13, 2014 11:51 AM in response to winslowmac

    If you want to use the 300GB drive for a bootable OS 9, you will need to partition it.

     

    OS 9 will not boot from a volume larger than 200GB. So, you will need to create a partition no larger than 200GB on that drive for this purpose; 190GB is a safe target for max size, to allow for formatting irregularities. You probably won't need a partition even that big, depending on how many programs you have and what additional space they might need.

     

    A boot volume for OS 9 should be formatted HFS+ (also called Mac OS Extended).