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PowerPC Mac Liberation Army

Startup Disk CP

Forum IndexPCI Power Macs & PowerBooks

In my upgrading of second-generation (mostly 604) Macs with G3 processors to run OS 9.1 and higher, this CP has most often, but not invariably, made of itself a consummate PITB. It is particularly galling, especially when attempting to switch between internal HDDs (even with the same OS) to be met with a freeze immediately after the new selection and before restart can be initiated with anything but the three-fingered salute. Not having been saved, the selection is therefore not valid at reboot. This can be got around, eg by booting from an Install CD, and then effecting whatever was the original impulse, but ...

With OS9Helper I have recently pushed a 7300/G3 and a 9600/G3 (né an 8600), and formerly a 9500/G3, to 9.2.2. The native Startup Disk CP v9.2.2 was again a consummate pain, but now with bells and whistles, too. On the principle of Nil permittere bastardari carborundum, I snitched v9.0 of the CP from an Install CD (with TomeViewer) and replaced that native to 9.2.2. It worked. No fallee over.

It may have some bearing to note that when a Utility CD, such as DiskWarrior, has multiple boot Systems (eg 7.6.1, 8.1, 9.1, 9.2.2), an Old World Mac with OS9Helper will not boot from the 9.2.2 Folder, just as would have been the case before OS9Helper's intervention. Seemingly, some part of OS9Helper's magic is not available, which is not altogether startling from a 'locked' CD. However, selection of 9.1 as the boot folder is easy enough, and successful in booting such a Mac.

The essence of this is that OS 9.1 is accessible to many Old World Macs, and 9.2.2 is also if OS9Helper mediates. Is the distinction solely ROM-in-RAM related? What arcane properties of Startup Disk CP may also be involved?

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(60x) 13DT + 3PB + PTPro; (G3) 7DT/MT; (G4) 3T + PB. System 8.1 to OS 10.5.8