[syslinux] EDD errors from extlinux on USB

[H. Peter Anvin]

On 07/13/2010 12:44 PM, Ferenc Wagner wrote:
> Hi,
> 
> I got this from my digital camera with Syslinux compiled from source
> (yes, I've got a configuration file with a UI directive):
> 
> SYSLINUX 4.02 pre-1-g0ee5047 CHS Copyright (C) 199...
> EDD: Error 0100 reading sector 0
> EDD: Error 0100 reading sector 2252244088
> EDD: Error 0100 reading sector 2252244089
> EDD: Error 0100 reading sector 2252244090
> EDD: Error 0100 reading sector 2252244091
> EDD: Error 0100 reading sector 2252244092
> ERROR: No configuration file found
> No DEFAULT or UI configuration directive found!
> boot:
> 
> Extlinux 4.00 pre47 boots my pendrive in the same computer.
> I'll try to test the same version with my digital camera as well.
> DMI information attached.
> 

Error 01 is "invalid function".

What is really interesting is that the assembly self-loader detected
this system as CHS, while the C code detected it as EDD ... and
apparently EDD wasn't implemented, after all!

I have had in the code the following comment:

/*** XXX: Consider falling back to CHS here?! ***/

... but I wasn't sure it would be necessary.  Looks like it will be.
Let me hack up a patch that I can ask you to test.

What system and BIOS is this?

	-hpa