I have several Power Macintosh G4/Cube-era recovery disks with slightly different versions of OS 9.0.x on them, and while they'll all seem to have no problem *booting* an older machine the installer won't run. However, there's a trivial trick to allow you to manually restore a working OS installation with them.
(Since I think it's general knowledge at this point I assume it's okay to spill it: CD's of that era have a slightly hidden disk image file on the CD that contains a complete working install of OS 9 and some of the accessory programs. Partition and format your hard disk, then find that file and double-click on it to mount it. Then simply select everything in it and drag it to your hard disk. Open and close the "System" file, and bang, you should be able to boot from it.
The one proviso is that a system installed this way *just might* have some customizations specific to the target machine. For instance, the version on the Sawtooth G4 restore disk worked fine in both Sheepshaver and on my B&W but the Cube version had broken sound drivers.)
(Since I think it's general knowledge at this point I assume it's okay to spill it: CD's of that era have a slightly hidden disk image file on the CD that contains a complete working install of OS 9 and some of the accessory programs. Partition and format your hard disk, then find that file and double-click on it to mount it. Then simply select everything in it and drag it to your hard disk. Open and close the "System" file, and bang, you should be able to boot from it.
The one proviso is that a system installed this way *just might* have some customizations specific to the target machine. For instance, the version on the Sawtooth G4 restore disk worked fine in both Sheepshaver and on my B&W but the Cube version had broken sound drivers.)