A4000T WB disks - what is different?

[Heiroglyph]

I can't get my A4000T's to boot from anything except the original hard drive.  With any other drive (tested working in a 4000D) it just sits there at a black screen.

Can someone please tell me what the magic different files are?

I've unsuccessfully tried using these files from the old HD:
 the 68040, backup and 060 libraries
 the workbench.library

Does anyone have the adfs or floppies? (I'm obviously legal to own them, they are just lost)

I also own OS3.9 if anyone has a solution using that.

The system is an A4000T with the huge Quickpack 060/50.

Thanks

[pan1k]

What kind of HD is it? Make sure the processor board is firmly seated, maybe try the processor board from the 4000D. I had a 4000D also, all I needed was workbench.library, so i'd try the processor.

[Heiroglyph]

I really don't think it's the CPU card, it runs fine with the old drive and the SCSI controller is on the motherboard.

Both drives are SCSI and both will show up in the early boot menu if I leave them both connected.

I just wiped out the files on the new drive and duplicated the minimum folders from the old drive to the new and it will boot from it.

I guess I'll have to remove stuff until I figure out the difference.

[Matt_H]

If you can make it to the Early Startup screen, you probably don't have a hardware problem. And if a 4000T can't find workbench.library, it'll open an empty screen called Workbench Screen and then stay there (because LoadWB will have failed and the startup-sequence will have ended).

So it sounds like something is failing in the startup-sequence or user-startup if all you're getting is a black screen. Boot with no startup-sequence, then type

set echo on
execute s:startup-sequence

to see where it's choking.