
2012-11-12

Very rough instructions for flashing your jrIDE BIOS ...

[1] Copy flash2 and OPROM.BIN to a bootable floppy diskette.  You have to
    use a diskette because your hard drive BIOS will be temporarily
    missing.  I like to use DOS 2.1 or 3.3.

[2] Boot from the diskette.

[3] Erase the existing BIOS from the flash chip:

      flash2 erase

    After that you will get a DOS prompt, but any attempt to touch
    the hard drive or diskette is probably going to fail because the
    BIOS has been ripped out from underneath the software interrupt
    vectors.  Just reboot using Ctrl-Alt-Del.

[4] Program the new flash image:

      flash2 write 0 oprom.bin


[5] Perform a cold boot.  This is important - you have to kill the
    power, not just Ctrl-Alt-Del.  After that the new BIOS will show up.



-Mike


