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| Author | Which 7.6.1 Image for PM8600? (Read 26397 times) | ||||||||||
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7Heaven
8 MB  Posts: 9 System 7 Newcomer! 
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Reply #15 on: March 18, 2023, 14:21
Success! I was able to get a dual boot 7.6.1 and 9.1 installed on my PM8600/250. Thanks for all your help, and I certainly learned a lot about the 8600 in the process. Just for the record, here's a run down of what I did: 1. This thread from Mac Garden was very helpful: https://macintoshgarden.org/forum/os-91-and-761-possible-the-same-machine 2. I used the PM8600CD_761.ZIP from Mac Garden and Mac OS 9.1 (Universal Install) CD Image from MacOS9Lives. There are several 7.6.1 images available, but given the unique nature of the 8600, this one seemed like the best place to start. 3. With 9.1 installed from my first attempt, I booted from the 7.6.1 CD. I initialized, then partitioned the disk. I placed 7.6.1 in the first partition. I did not update the HD drivers. 4, Rebooted, made sure 7.6.1 was working. 5. Booted from the 9.1 CD by pressing Command-Option-Shift-Delete at startup. 6. Installed 9.1, did not update HD drivers nor perform a clean install. I tested and in both 7.6.1 and 9.1 I can go to the Startup Disk control panel and select either OS as the startup. Thanks so much to everyone for your comments and suggestions. Still a few minor problems to sort out with this machine, but it's great to have it up and running. |
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Bolkonskij
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Administrator 1024 MB  Posts: 2023
Reply #16 on: March 18, 2023, 17:58
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That's awesome news 7Heaven and thanks for sharing a tutorial on how to set it up. Hopefully it'll be helpful to others in the same situation. Well, finally nothing is holding you back to join the discussions on here posting *from* your actual System 7 Mac :-)
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cballero
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1024 MB Posts: 1179 System 7, today and forever
Reply #17 on: March 18, 2023, 19:57
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The best of both worlds right there!  Now you have the speed and old-school apps of the System-7 era and the latest-and-greatest Classic Mac software (well at least the type that doesn't need a G3 or better processor) all on the same Mac!
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