English Amiga Board - View Single Post - Help required! Using a CD/DVD drive under OS3.1.4.1

Daedalus · 26 May 2021, 15:27

The main thing is that the device and unit number specified in the DOSDriver match your setup. With the 4-way adaptor, the first port is scsi.device units 0 and 1, but I think atapi.device is still required to access the second port with units 2 and 3. For the SD card adaptor, it depends on how it's implemented - some have the 40-pin IDE configured as slave with the SD card as master, others mimic the 4-way adaptor behaviour and so also need atapi.device to access that port.

Bear in mind that some CF cards (and possibly some SD adaptors too) don't work well with other devices on the same bus, so this can prevent the CD drive from being detected if it's set as a slave device.

26 May 2021, 15:27	#3
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	The main thing is that the device and unit number specified in the DOSDriver match your setup. With the 4-way adaptor, the first port is scsi.device units 0 and 1, but I think atapi.device is still required to access the second port with units 2 and 3. For the SD card adaptor, it depends on how it's implemented - some have the 40-pin IDE configured as slave with the SD card as master, others mimic the 4-way adaptor behaviour and so also need atapi.device to access that port. Bear in mind that some CF cards (and possibly some SD adaptors too) don't work well with other devices on the same bus, so this can prevent the CD drive from being detected if it's set as a slave device. Last edited by Daedalus; 27 May 2021 at 09:46.