Re: [linuxsh-dev] How to use an initrd?

[Cord S. <cs...@em...>]

Hi Alessandro,

On Thu, 22 Nov 2001, Alessandro Rubini wrote:

> 
> > I've to use S-records, which I generate with objcopy. But the loader only
> > permits one upload with one start address. Guess, I've to combine two
> > S-records into one file. That should work, shouldn't it?
> 
> You can also link the ramdisk inside the kernel. I've done that for
> mips one year ago (it was the standard for PDA devices), and I'm going
> to it today or tomorrow on my sh box.
> 
> What you should do is this:
> - convert the ext2/whatever image to an object file with
> 	objcopy and set the __rd_start and __rd_end symbols
> - link it in by adding the object file to the Makefile
> - add this in place of the code that uses the empy_zero_page header:
> 
>         extern void * __rd_start, * __rd_end;
>         initrd_start = (unsigned long)&__rd_start;
>         initrd_end = (unsigned long)&__rd_end;
>         initrd_below_start_ok = 1;
> 
> That should work. If you or someone else is interested in my
> implementation, I'll post the real code and script tomorrow.

Yes, please.

Since I'm having wired problems with initrd (see my response to Stuart), I
would try your way next.

Is the SH port perhaps missing something for initrd to work?

	Cord