Re: NSLU2 won't boot 5.0

[Robin Randhawa <robin.randhawa%gmail.com@localhost>]

On 24 Feb 2009, at 11:43, Andy Ruhl wrote:

>  When I
> load one that just says "data" from the file command, it loads. I
> think the machine isn't wanting to boot a binary with headers in it or
> something like that?


IMHO that's not the problem. Redboot's ELF loader should "lay out" the  
code
(and data) sections in memory and having done that, jumping to the  
correct entry point address should just work.
I don't think the NetBSD kernel makes any assumptions about the nature  
of the binary image but
I could be mistaken.

You can find out what exactly the entry point of the ELF binary is (as  
opposed to the flat binary)
by issuing :

$ arm-netbsdelf-objdump -D netbsd-nfs-NSLU2_ALL | grep '^start\ address'

If it is different from the load address that you use with redboot's  
'load' command then you must
make sure that you use the entry point address with the 'go' command  
and not the load address.
Redboot is supposed to indicate the entry point address of the ELF  
binary on a successful load and you could
use that ?

But hold on a minute, you say that you are able to load and run a flat  
binary. I though you said that
running the binary was giving you mangled GDB stub output and telnet  
would disconnect, or is that a different
problem ?

HTH,
Robin