One of major's improvement 2.xx have over 1.3 is just the SCSI.device in ROM, allowing the Amiga to boot from the hard drive directly.
Of course you have a way to circumvent the problem: download a program named "remus" (on Aminet, afair), strip the SCSI.device from the 2.04~05 ROM(37300 or 37350 ks) and attach it to the 1.3 ROM image you have, remembering to check the checksum on the end of the file.
This way you'll have a special "1.32" ROM, allowing you to autoboot your Amiga in a 1.3 environment. Tough this is not simple for noobs...
