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Home Forums 68kMLA Am I making 800k floppies correctly? Unable to Load ProDos error — #1
Post #1 by LimeiBook86
Source Forum68kMLA
CategorySoftware
Post DateThu, 19 Feb 2015 - 14:54
Original URLhttps://68kmla.org/bb/threads/am-i-making-800k-floppies-correctly-unable-to-load-prodos-error.1310/
Post
Hello everyone,

I setup my IIGS (ROM 1 with an accelerator, SCSI, and RAM card) last night along with my PowerBook G3 (Mac OS 8.6). I was able to make a floppy of the Apple SCSI Utilities disk on the PowerBook and boot the IIGS up from the floppy to successfully format a Zip 100 disk as a hard drive.

My next step was trying to make System 6 (GS/OS) disks to install it on the Zip disk. I used the Apple Legacy Recovery CD in my PowerBook to access the GS/OS disk images. But when I tried to make floppies every other disk image failed! (Using DiskCopy 6.3.3)

Eventually I was able to make all the disks except "Install" and "System". I was using DiskCopy 6.3.3 and it gave me a message that said there was a problem with the image (not with the disk) about 90% through the process. Re-trying again didn't help, I could "convert" the disk image to another file and then make the disk, which worked fine, but the Apple II still wouldn't boot.

Oddly enough in both cases, if I put the disk back in it mounts, with what looks like the files intact, but the IIGS won't boot (Says "Unable to load ProDos" on the Install disk). I have a stack of new 800k disks, so I know it's not the disks. I tried to use DiskDup+, but it doesn't seem to want to open or read the disk images (.IMG format).

So my question is - can DiskDup+ read .IMG files? Is there anything special I have to do to make this work?

I tried to insert the "Apple II Setup Disk" and the IIGS said it's not a system disk. So at least (I can assume) the other disks are written to properly. The disk images verify in DiskCopy, but won't write to the floppy it seems. I can bring out another old Mac (I have a IIci or a PowerBook Duo 230) to try and make disks... but as I recall I had this "Unable to Load ProDos" messages before when I tried this years back.

Thanks!
-Steve

mp.ls