Usage
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Usage scenarios
Boot firmware(BIOS/coreboot)
Option roms
Flashrom can be used to flash option roms such as ipxe or sgabios, they can respectively be flashed on network card and graphic card, but it's not mandatory: you can use any card as a carrier as long as the card is supported by flashrom and that the BIOS runs its option rom.
Howto
Here's an example on how to flash sgabios on an nvidia video card:
- download flashrom
- apply that patch:
diff --git a/gfxnvidia.c b/gfxnvidia.c
index d0a9feb..35e4687 100644
--- a/gfxnvidia.c
+++ b/gfxnvidia.c
@@ -110,7 +110,7 @@ int gfxnvidia_init(void)
rpci_write_long(dev, 0x50, reg32);
/* Write/erase doesn't work. */
- programmer_may_write = 0;
+ //programmer_may_write = 0;
register_par_programmer(&par_programmer_gfxnvidia, BUS_PARALLEL);
return 0;
- compile it