@daedalus: That is inspired!!
I wouldn't have thought of that in a million years.
I think you may be onto something. Having looked at the RDBs for both disk, the IDE disk is running SFS 1.277 on FileSystem#0 whereas the SCSI disk is running SFS 1.279 on its FileSystem #0. This is according to rdbtools - I haven't found an Amiga program that gives detailed RDB info.
To fix this then, do you think I should load v1.277 in HDToolBox and "Change" to that filesystem with the same partition sizes? (I'm running under OS3.9)
Extra info:
IDE drive:
- Partitions are 0x53465300 = SFS0
- Filesystem is 0x53465300 = SFS0, v1.277
All matches up
SCSI drive:
- Partitions are 0x53465300 = SFS0
- Filesystem is 43465300 = CFS0, v1.279
So a mismatch of the DOS type. I wonder if that's a factor?
Anyway, question is: is the filesystem the important one and I need to change the RDB in HDToolbox to match, or is there another fix?