Shame is that i can only get 4GB (out of a 20GB hard drive) but 4GB is more than enough i guess.
You can get just fine the rest of the drive if you use LoadModule (
http://aminet.net/package/util/boot/LoadModule) with a newer scsi.device.
So if you put LoadModule in C: and the new scsi.device for example in folder Devs:
...you only need to put as first line of your Startup-Sequence the command:
C:LoadModule Devs:scsi.device(LoadModule command will load the new scsi.device on power up and then reboot! After that and once your system completes it's boot proccess you can enjoy your full HD capacity. Just make sure that the first partition is always under the 4GB barrier.)
Bloodwych's awesome ClassicWB packs (
http://classicwb.abime.net/) once installed have some new scsi.device version under "DH0:MyFiles/LargeHD/128GB_Support/" on folders "SCSI_IDE_43.23" or "SCSI_IDE_43.24".