China DOS Union

Everyone knows that romdos is very small, 64K, and can be flashed into the BIOS. In fact, if the BIOS space is large enough, adding a grub.exe file to this romdos is also possible. In this way, in the "three noes" (note: no floppy drive, no hard drive, no CD-ROM) situation, you can freely tinker with the machine on a machine that does not support USB drive booting.

Since the grub.exe file is relatively large, about 200K, it is not very likely to be flashed into the BIOS. Therefore, the idea is to use grub to modify the master boot record to boot grldr. Can we make the module that searches for the master boot record and boots grldr into something similar to romdos and directly flash it into the BIOS? Then... ah haha, everyone can know what to do next

:P

It doesn't make sense, right? Grub's job is to start the system with multiple menus, and specific booting still needs img image files or other parts of the system. Where do you put these system parts in the 3 inorganic you mentioned?

Agree with the above, a product with no brand, no factory, and no certificate that has started GRUB is useless.
But a product with two of them can be. Hehe.
There are already ROM versions of GRUB and GRUB2.
It seems there is no ROM version of GRUB4DOS yet.

Who knows how to flash into the network card? The mainboard cannot be flashed.

Originally posted by lianjiang2004 at 2007-12-5 01:09 PM:
Who knows how to flash it into the network card?
The motherboard can't be flashed.

Insert a 32-pin erasable BIOS chip into the 8139 network card. You can flash it under DOS using rtflash.exe, and you can do it without a programmer.

rtflash.exe /? can display help.

rtflash.exe can be downloaded from the official website.

Originally posted by wang6610 at 2007-12-5 13:25:

For the 8139 network card, insert a 32-pin erasable BIOS chip. You can flash it using rtflash.exe under DOS, which can be done without a programmer.

rtflash.exe /? displays help.

rtflash.exe can be downloaded from the official website.

rtflash.exe was downloaded the day before yesterday, but it didn't work.
It turns out that I also need to "insert a 32-pin erasable BIOS chip"
I don't know how to do this step.
Where can I get a 32-pin erasable BIOS chip?
I know nothing about hardware. Hehe.
Please give me some guidance.

I only have one piece, which was originally used for testing when developing GRUB4ROM. If you need it, I will send it to you, and you should pay for the EMS cost!

Originally posted by lianjiang2004 at 2007-12-5 02:43 PM:

rtflash.exe was downloaded the day before yesterday, but it didn't work when tried.
It turns out that I also need to "insert a 32-pin erasable BIOS chip"
I don't know how to operate this step.
Where can I get a 32-pin erasable BIOS chip?
I know nothing about hardware. Hehe.
Please give me some advice.

First, check if your network card has a 32-pin socket. If it does, you can find a discarded motherboard of Pentium II or Pentium III to take one.