You're not going to be able to open much in the System Folder with a System 6 Mac. The control panels (Sound, Mouse, Startup Disk, etc.) are designed to be opened from within the Control Panels desk accessory. If you don't, you're going to get the error message you get in the images.
The label on that external drive is definitely one from an IDE drive, but it is obviously plugged in via SCSI. I suppose that you swapped the controller board from a SCSI drive into an IDE drive?
On a Mac Plus, any drive you use with it must be formatted with a 3:1 interleave ratio. If the drive was formatted and system software was loaded on any other Mac, it will be incompatible with the Plus. You need to use Apple HD SC Setup from a boot disk on the Plus to initialize the drive with the correct interleave ratio.
The battery is going to be mostly a cosmetic issue on the Plus. I agree that you need to perform a fresh install of the system software. Tom's seems to have forgotten that the Plus only has an 800K floppy drive.
The 1.4 MB images he posted won't do you much good on the Plus. If you don't have a copy of the system software you want to install, post back and someone can get you a link.
It never hurts to try power cycling, but that doesn't seem to be the problem. The drive *sounds* like it's spinning up correctly and as expected, not to mention it's mounting on the desktop without any more intervention. It simply sounds like your problem is the drive is not bootable to me, and that's entirely a software/formatting issue.
The label on that external drive is definitely one from an IDE drive, but it is obviously plugged in via SCSI. I suppose that you swapped the controller board from a SCSI drive into an IDE drive?
On a Mac Plus, any drive you use with it must be formatted with a 3:1 interleave ratio. If the drive was formatted and system software was loaded on any other Mac, it will be incompatible with the Plus. You need to use Apple HD SC Setup from a boot disk on the Plus to initialize the drive with the correct interleave ratio.
The battery is going to be mostly a cosmetic issue on the Plus. I agree that you need to perform a fresh install of the system software. Tom's seems to have forgotten that the Plus only has an 800K floppy drive.
The 1.4 MB images he posted won't do you much good on the Plus. If you don't have a copy of the system software you want to install, post back and someone can get you a link.It never hurts to try power cycling, but that doesn't seem to be the problem. The drive *sounds* like it's spinning up correctly and as expected, not to mention it's mounting on the desktop without any more intervention. It simply sounds like your problem is the drive is not bootable to me, and that's entirely a software/formatting issue.