JosiahPB said:
How is it switching from System 7 to X?
As previous posters have said, it's not a need many folks have. But based on my experiences with a WallStreet, which can boot both OS X and OS 8.1, I can tell you that you would not do it in one step. Older systems that lack the CarbonLib support aren't going to let you run the version of Startup Disk Control Panel that will allow you to select an OS X system to boot from. MacOS 8.6 will, MacOS 8.1 will not (or at least I was unwilling to devote the research and debugging efforts for getting CarbonLib to load on 8.1), and I think it is fair to assume no version of System 7 ever would.
Therefore, when your G3-accelerated PowerMac 9600 is booted into System 7, you would go to the Startup Disk Control Panel and select your MacOS 8.6 or MacOS 9.x volume and reboot into that; then once you are booted in 8.6 or 9.0 or 9.1, you again go the Startup Disk Control Panel and select your OS X volume (using the version of the Control Panel that recognizes OS X Systems), and reboot a second time.
To go the other direction would also not be a one-step operation. Old-world Macs don't let you select
which "classic" operating systems to use as startup systems, although they give the appearance of giving you that option the open firmware is too primitive or something of the sort and therefore only lets you switch back to "classic" style booting, at which point the computer reverts to the last non-X system selected. So to get back to 7 you'd have to reboot once to get back to 8/9*, then select 7 and reboot to get back to 7.
* And if you're running Panther or Tiger on your 9600, the Startup Disk PrefsPane in OS X may not do you any good at all, since Panther and beyond lack the instrux to reset oldworld hardware to boot a "classic" OS on the WallStreet you'd have to do a power-reset every time you wanted to leave OS X and boot 9 (/8). Don't know exactly how you'd do it on a 9600, might require yanking the PRAM battery and waiting for your machine to party like it's 1909.