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You are here: MacNN Forums > Enthusiast Zone > Classic Macs and Mac OS > OS 9.1 and iMac Rev. A

OS 9.1 and iMac Rev. A
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Jan 7, 2001, 01:23 AM
I have an iMac (Rev. A) with 128MB RAM and Maxtor 40 GB HD. I just installed OS 9.1 and when I first installed it I put it on a 4 GB partition just to try it out and make sure it worked. As you know you can have up to an 8 GB startup drive on a Rev. A. But when I transferred all files over to my 8 GB partition my iMac refused to start. So booted off the OS 9.1 disk and updated the hard disk drives and ran a Disk First Aid and restarted, still no luck, so I transferred it all back to my 4 GB partition and all of the sudden it starts up.... Looks like Apple doesn’t like us Rev. A iMac users!!
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Join Date: Sep 1999
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Jan 7, 2001, 10:55 AM
You ran the new System Disk to point to new location? Erased the old volume? Did you try installing to alternate volume? Maybe the system has to reside in first 8GB of a volume and if you look (in Drive Setup) the 8GB is far enough down.

It's not that you can have an 8GB startup drive, but the system folder has to be in first 8GB on the drive. Also, outer tracks (first volume created "Untilited") tend to be slightly faster - good place for VM or the system. Backing up and reformatting - on an early iMac w/o firewire - isn't for everyday - I heard that later version of drive setup would allow deleting or creating sub-partitions.
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Join Date: Oct 1999
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Jan 7, 2001, 11:27 AM

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