I have an
AST Premium Exec 386SX/20 Model 63V laptop minus a floppy drive and hard disk. Otherwise the 1991 vintage machine is fully functional (and in excellent condition, so it's definitely worth saving).
I've been using a modern SD-Card to IDE adapter (
chip: FC1307A) to attempt to boot from a 128 MB SD-Card, and before the floppy drive died, I managed to get Windows 3.1 almost installed (it got to 99% and errored-out).
I am having a very hard time constructing a bootable image that will allow this laptop to run from the SD-Card. Part of the problem is that I have not been able to find any official settings for the hard disk geometry that this laptop expects to see on the IDE hard drive.
The original hard drive (now physically damaged and unusable) is a
Conner Peripherals CP-2064. Sticker on the disk says it's a 60 MB and "TYPE=AUTO" whatever that means. The quality control stamps on the hard disk suggest a firmware version of "NT1.14".
How can I configure this laptop to recognise the SD-Card and boot from it? I realise this is not an easy question and will possibly require the assistance of someone who owns a working laptop of this kind...
- What is the correct BIOS configuration pertaining to the hard disk?
- How can I construct an SD-Card ISO image compatible with (1) that allows the volume to be bootable?