Re: [Etherboot-developers] booting non linux images

[Anuradha R. <anu...@gn...>]

On Wed, 16 May 2001, Ken Yap wrote:

> There is some tricky stuff in bootsect.S that doesn't get done because
> you jump directly to setup.S. For example ss is set to INITSEG and sp
> to about 0x4000. When you are coming direct from Etherboot, ss is
> 0x9400 and sp a bit less than 0xc000 (= linear address of just below
> 0xa0000). It doesn't matter in the case of booting Linux, because
> first-linux.S takes care of this before calling setup.S. But you don't
> have your equivalent of first-linux.S.  So you'd have to read setup.S
> very carefully, bearing in mind the initial conditions of entry to see
> if anything untoward will happen.

I am now in the process of changing setup.S, so that it initializes the
necessary registers and the stack as done in bootsect.S.

I wonder how lilo happily boots memtest86. Is it correct to say that it
also jumps directly to setup.S code?

Anuradha