Two versions of Mac OS X on one machine?

jwswacojwswaco
Posted:
in macOS edited January 2014
Can I install two versions of Mac OS X (10.3 and 10.4) on one machine? I plan to use a separate hard drive for each version. The reason I need to do this is that I have proprietary software that will only run on 10.3 and other software that will run on 10.4. Any suggestions? Thanks -james

Comments

  • Reply 1 of 8
    kickahakickaha Posts: 8,760member
    Yes. Do it exactly like you said - two hard drives (or two partitions on one drive works too.)



    At boot, hold down the option key, and it will bring up a boot volume picker, where you can select the version you want to boot from. I have a machine in the other room with 10.2.x, 10.3.x, 10.4.x, and 9.2.2 on it.
  • Reply 2 of 8
    jwswacojwswaco Posts: 4member
    Thank you, this will help greatly! -james
  • Reply 3 of 8
    sthiedesthiede Posts: 307member
    can one install OS X on an external drive?
  • Reply 4 of 8
    chuckerchucker Posts: 5,089member
    Quote:
    Originally Posted by sthiede View Post


    can one install OS X on an external drive?



    Absolutely. Note, however, that many (but not all) PowerPC-based Macs cannot boot off USB, only FireWire. All Intel Macs can boot off both USB and FireWire.
  • Reply 5 of 8
    sthiedesthiede Posts: 307member
    Quote:
    Originally Posted by Chucker View Post


    Absolutely. Note, however, that many (but not all) PowerPC-based Macs cannot boot off USB, only FireWire. All Intel Macs can boot off both USB and FireWire.



    thanks chucker! does that include being able to use an external hd for bootcamp?
  • Reply 6 of 8
    chuckerchucker Posts: 5,089member
    Quote:
    Originally Posted by sthiede View Post


    thanks chucker! does that include being able to use an external hd for bootcamp?



    No, I haven't succeeded in booting Windows off an external HD yet.
  • Reply 7 of 8
    aquamacaquamac Posts: 585member
    Quote:
    Originally Posted by sthiede View Post


    thanks chucker! does that include being able to use an external hd for bootcamp?



    Sorry, booting with bootcamp off of an external HD is not supported yet.
  • Reply 8 of 8
    sthiedesthiede Posts: 307member
    Quote:
    Originally Posted by AquaMac View Post


    Sorry, booting with bootcamp off of an external HD is not supported yet.



    hmm that is a definite must in Leopard.
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