[syslinux] Syslinux multifs support

[poma]

On 07.04.2016 19:28, Tal Lubko via Syslinux wrote:
> Hello Everyone
> 
>  
> 
> Sometime ago there was some discussion about Syslinux multifs support.
> 
> I've tested it for some time using qemu and it seems to be working.
> 
> Lately I've started testing it with my real hardware and for some reason it
> doesn't work.
> 
>  
> 
> I don't really know how to debug Syslinux (aside from using printf), so what
> I've succeeded to discover with is that the function multifs_get_fs iterates
> over the parts_info list and disk 0 (the disk I try to load kernel from)
> first partition index is (-1).
> 
> I think parts_info isn't initialized it properly.
> 
>  
> 
> So I have few questions to the mailing list:
> 
> - Has someone tested the multifs feature on some real hardware?
> 

http://www.syslinux.org/archives/2015-December/024671.html

Syslinux MultiFS test:

- QEMU/KVM SeaBIOS: PASSED
- Bare-metal BIOS: FAILED [1]
- OVMF: FAILED [2]
- Bare-metal UEFI: not tested

http://bugzilla.syslinux.org/show_bug.cgi?id=67


> - Is there a way to debug it? I guess some debugging was needed during
> Syslinux development.
> 
> - I think that I have some early stage prints missing (maybe before
> something is initialized). What is the thing that is enabled which allows
> printf? Is there another way to print during early stages?
> 
>  
> 
> Regards,
> 
> Tal
> 
>  
> 
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