Re: Grub cannot boot kickstart - error 13

Hi,

I had the same problem.
And the problem is coming from grub 0.97 (coming with a debian etch).

In fact, grub 0.97 makes some tests on the object to load as kernel :
when you specify the flag MULTIBOOT_AOUT_KLUDGE in multiboot header, the object
cannot be in ELF format. And this is why kickstart cannot be loaded : it is ELF
with flag MULTIBOOT_AOUT_KLUDGE.

An easy solution is to remove this flag from the multiboot header of "kickstart".

Index: user/util/kickstart/crt0-ia32.S
===================================================================
RCS file: /public-cvs/pistachio/user/util/kickstart/crt0-ia32.S,v
retrieving revision 1.2.4.2
diff -r1.2.4.2 crt0-ia32.S
74,80c74,75
< 	.long   0x00010000;
< 	.long   - 0x00010000 - 0x1BADB002;
< 	.long   __mb_header;
< 	.long   _start;
< 	.long   _edata;
< 	.long   _end;
< 	.long   _start;
---
> 	.long   0x00000000;
> 	.long   - 0x00000000 - 0x1BADB002;

Regards,
Laurent

Stu Glaser wrote:
> Hi all,
> 
> When I try to boot kickstart/pistachio, grub halts with:
> 
> Error 13: Invalid or unsupported executable format
> 
> I am using pistachio 0.4 inside vmware on a pentium M machine.  The same
> error occurs for the binary distribution, the 0.4 source distribution,
> and the CVS repository.
> 
> I tried the following at the grub command prompt:
> 
> grub> root (hd0,0)
> grub> kernel /boot/kickstart
> 
> Error 13: Invalid or unsupported executable format
> 
> grub> kernel /boot/i686-kernel
> 
> ****a bunch of memory addresses in hex****
> 
> Of course, trying to boot the kernel directly causes a Memory descriptor
> overlow error.
> 
> 
> # file kickstart
> kickstart: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV),
> statically linked, not stripped
> # file i686-kernel
> # gcc --version
> gcc (GCC) 4.1.2 20060928 ..........
> 
> Am I missing a step here?
> 
> Thanks,
> -Stu
> 
> 


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