Dear SeaBIOS folks,
It was announced already on the coreboot mailing list [1], so some might already know this.
redsPL got SeaBIOS and a Win 3.1 (floppy disk) (with coreboot) booting [2].
Because the standard coreboot payload with SeaBIOS only occupies only about 1MB out of the full 8 on the ROM, I thought about embedding a full OS on the remaining 7 megs. It turns out that SeaBIOS has partial support for booting from flash - it sets up a virtual floppy drive with your floppy of choice loaded from floppyimg/<name>.lzma, but this gives us at best 2.88MB (standard ED floppy disk size, exactly 2x as large as a popular 1.44M), and I wanted more.
I guess it should be reproducible in QEMU too.
Kind regards,
Paul
[1]: https://mail.coreboot.org/hyperkitty/list/coreboot@coreboot.org/thread/2QH5J... [2]: https://sakamoto.pl/weblog/07-windows-3-flash-edition/
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Paul Menzel