Re: aout support almost working now

[Robert Millan]

On Wed, Feb 06, 2008 at 04:26:15PM -0800, walt wrote:
> >diff --git a/kern/i386/loader.S b/kern/i386/loader.S
> >index 266f4ef..88f3045 100644
> >--- a/kern/i386/loader.S
> >+++ b/kern/i386/loader.S
> >@@ -137,6 +137,7 @@ FUNCTION(grub_multiboot_real_boot)
> >     cli
> >     
> >     /* Move the magic value into eax and jump to the kernel.  */
> >+    movl    $0x80, %edx
> >     movl    $MULTIBOOT_MAGIC2,%eax
> >     popl    %ecx
> >     jmp     *%ecx
> >@@ -159,6 +160,7 @@ FUNCTION(grub_multiboot2_real_boot)
> >          cli
> >
> >          /* Move the magic value into eax and jump to the kernel.  */
> >+    movl    $0x80, %edx
> >          movl    $MULTIBOOT2_BOOTLOADER_MAGIC,%eax
> >          popl    %ecx
> >          jmp     *%ecx
> >
> >Please note that this is not a proper patch, it assume booting from
> >the (hd0,0,a). you can adjust the value of %edx if you boot from other
> >partition.
> 
> Sorry, I don't know what adjustment to make.  I did find a macro for
> MULTIBOOT_INFO_DISK_INFO but it's never actually used anywhere :o/
> 
> I'm trying to load (hd0,3,a) -- can you show me the right value for %edx ?

If he guessed right, you don't need to do anything special, and 0x80 will
work for you.

The patch is not correct because it breaks setups in which boot disk is not
the first one.  But that doesn't seem to affect you.

-- 
Robert Millan

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