How to instal 40 gig hd on wb3.9?

[rvo_nl]

Make sure the os3.9 rom update is working. use check4gb from aminet to see if everything's patched correctly. install drive using hdtoolbox in os3.9. use fixhddsize from aminet if size is not recognised correctly. I have to use the diskchange command from idefix to mount partitions above 4gb.

[rvo_nl]

well, if you are sure scsi.device is patched by the rom update (use check4gb to check) and the drive has correct jumper(s) set and you can only INSTALL instead of PARTITION, then.. then I am lost for ideas..

Perhaps you can do it my way: boot from cold to workbench 3.1 (disk), then install the drive (as 4gb or 8gb, obviously). then boot from your other drive into os3.9 and use fixhddsize to save correct information in RDB.
 
http://aminet.net/package/disk/misc/fixhddsize

[rvo_nl]

thank the poster above you instead..
 
I'm glad it works! be sure to carefully test you can copy files to all partitions without corruption.