I tried both the 8.1 and 8.5 images downloaded through Macintosh Garden and the CDs burned from them. SheepShaver can read them fine (I should not do such tests on an empty stomach
), but they appear to be not bootable in SheepShaver. SheepShaver boots fine from my original 8.5 install CD.
I thought of the possibility that the System Folders are not blessed, but they are blessed (= showing their System Folder icon in MacOS). To be sure, I converted the 8.5 image to a read/write format, mounted it in a MacOS environment in SheepShaver, blessed the System Folder again (= Open the folder in MacOS so the MacOS Finder can "see" the System and Finder files and close the folder again). Locked the image and tried to boot form it. Still does not work. There must be something else that is wrong about these images.
BTW: The System Folder not being blessed after burning a MacOS boot CD in OSX is only true when the files and folders are actually copied in OSX. The blessed state is not lost when the CD is burned from a disk image. I have also never experienced a MacOS bootable image turning into a unblessed state when the image was mounted in OSX. If that were true, all of my dozens of bootable images would have become unbootable by now. But, yes, copying the System Folder in OSX will turn it to an unblessed state.
The system software on this Disk is designed for starting up from a floppy only.
Please reinstall the System Software from the disks or CD that came with your computer.
You can ignore that message.
Maybe it is possible to boot from the DiskTools85_PPC.img and then use the installer on the install CD (image). I appear not to be able to boot from DiskTools85_PPC.img in Lion (SheepShaver crashes), so I will try this in Snow Leopard. Need to boot into 10.6.8 for a different reason anyway.