Re: Booting uncompressed kernel image on i386?

[Wakko Warner <wakko@animx.eu.org>]

Ondrej Zary wrote:
> Nobody answered, time to look at the code :-)
> The attached patch is a quick hack so "make" will create uncompressed 
> kernel that can be booted in regular way.

> --- linux-2.6.12-printserver/arch/i386/boot/compressed/misc.c	2005-06-17 21:48:29.000000000 +0200
> +++ linux-2.6.12-pentium/arch/i386/boot/compressed/misc.c	2005-07-01 23:34:55.000000000 +0200
> @@ -374,7 +374,15 @@
>  
>  	makecrc();
>  	putstr("Uncompressing Linux... ");

Would it not make sense to remove the above line?  You're not actually
uncompressing anything.

> -	gunzip();
> +	int i;
> +	for (i = 0; i < input_len / WSIZE; i++) {
> +		memcpy(window, input_data+i*WSIZE, WSIZE);
> +		outcnt = WSIZE;
> +		flush_window();
> +	}
> +	memcpy(window, input_data+i*WSIZE, input_len % WSIZE);
> +	outcnt = input_len % WSIZE;
> +	flush_window();
>  	putstr("Ok, booting the kernel.\n");
>  	if (high_loaded) close_output_buffer_if_we_run_high(mv);
>  	return high_loaded;

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