To try to isolate the issue I went back to basics and created a disk image and installed a standard Workbench 3.1 from Amiga Forever disks using FS-UAE.
I then copied the same image to an SD card and the SSD disk.
The SD card booted up immediately and the SSD refused.
The other observation is that when I choose 'Boot without executing Startup-Sequence' from the Boot menu because frankly I couldn't think of anything else; occasionally it boots into DOS window and if I run the 'info' command it shows the SSD partitions correctly. There is not pattern and it only happens randomly. Most of the time it's just black screen.
I'm using the components linked in Post 1 except the SDD is of higher 22G capacity (same make).
So I agree it's most likely the SSD adaptor compatibility. The fact Zetro has it working in A600 makes me think it's the adaptor + A1200 combination perhaps.
Commands used to prepare the disk image before going to FS-UAE.
Code:
rdbtool ~/FS-UAE/Hard\ Drives/Workbench31.hdf create chs=16383,16,63
rdbtool ~/FS-UAE/Hard\ Drives/Workbench31.hdf init rdb_cyls=2 + info
rdbtool ~/FS-UAE/Hard\ Drives/Workbench31.hdf add size=50Mib name=DH0 dostype=ffs + info
rdbtool ~/FS-UAE/Hard\ Drives/Workbench31.hdf change DH0 bootable pri=0 + info
xdftool ~/FS-UAE/Hard\ Drives/Workbench31.hdf open part=DH0 + format disk1 ffs + list
# use FS-UAE to install
sudo dd if= ~/FS-UAE/Hard\ Drives/Workbench31.hdf of=/dev/disk2 bs=10m
Has anyone managed to make it work in A1200?