Not possible to boot from harddisc in Kickstart 1.3 ?
Booting A minimig from HD like an A600 needs the version of scsi.device found in kickstart 2.05 or higher to boot of the internal HD controller.
It is possible to create a patched version of kickstart 1.3 that contains the newer version of the scsi.device found in kickstart 2.05 and higher but its much easier to just boot of an ADF image that mounts the harddisk partition and makes the required assigns before execute ing the startup sequence found on the mounted HD partition.
IDE adapters for the A500 that add an A600/A1200 style IDE port also have the same kickstart version restrictions.