Do you have any idea how you can emulate Mac OS 9 with the Old World ROM on SheepShaver?

Because sometimes when you run it with the old world rom, you could recieve a bomb error.

Buy a Mac. SheepShaver is really too buggy to use and as far as I know, abandoned.

But, of course, I could really set the RAM to 256 or 512 MB.

Umm… No… It's still being worked on and, it is the most capable PPC emulator… I have Mac OS 8.6, 7.5.5, and 8.0 installed… I can even run Betas like 8.2 on it…

Interesting. Last time I used SheepShaver, it hadn't been updated in several years.

http://www.emaculation.com/

Here is the site where you can get the latest builds, along with guides on how to set it up…

Sorry, but why are you using an Old World Rom instead of a New World one?

Old World ROMs can run System 7.

Fairly sure that OS 9 and Old World ROMs are incompatible. I think the only way would be to change the ROM file through the GUI.

That said, I'm not sure how well SheepShaver works as two different instances in two different folders, or in tandem with Basilisk? But you could give that a try if you really don't want to keep switching ROMs.

There's also some software called OS9 Helper that allows you to install OS 9.2 on some older Macs, which mightn't be what you're looking for but maybe there would be some way around it with a bit of work. Good luck!

replace Open Transport extensions with the ones from 8.x.
never install quicktime 3.x or 5/6.
Remove the Apple Audio Extension.
Remove all Extensions for unemulated hardware.
Keep away from all 68k apps that plays sound.

But he's wanting to emulate OS 9. So he should use Basilisk II and an Old World Rom for System 7 and SheepShaver and a New World Rom for OS 9.

Not really, I used to run OS9 on my oldworld based G3.

As for Sheepshaver, it won't run anything newer then 9.0.4, so that's useless.