Hello, Felipe.

Thank you, Felipe, for suggesting that I use ROMBurst.c to extract the kernel 
and filesystem from Ospack. It gave me a good place to start researching.

It proved easier and probably faster to extract zImage from the Ospack of 
SharpROM 3.1 by using 'dd' in a terminal, rather than using ROMBurst.c or 
cutzrom.c,
since I did not have a cross-compiler or on-board compiler installed. 

I was enlightened by 'crow' in a previous post at the OESF.org forum:
http://www.oesf.org/forum/index.php?showtopic=7699&pid=46778&mode=thread&start=#entry46778

Also helpful was the documentation contained in Mark T. Grennan's cutzrom.c
program source, which documented the organization of the 1.02 ROM  for SL-5000.

To confirm that the ZIMAGE and ROMDISK.BIN had not moved, I used the following 
terminal command after changing the working directory to be the same as the 
location of the Ospack file:
dd if=Ospack | hexdump -C

This command scrolled through the entire Ospack and at the end was a directory 
structure, which confirmed by comparison with Grennan's documentation, that 
ZIMAGE and ROMDISK.BIN had not moved since SharpROM version 1.02.

Then, I adapted the advice of 'crow' from the OESF.org forum post mentioned 
above.

In a terminal,
To extract the kernel:
dd bs=131072 skip=6 count=8 if=Ospack of=zImage
 
To extract the file system:
dd bs=131072 skip=14 count=128 if=Ospack of=initrd.bin

I now have a 1 MB kernel (zImage) and a 15 MB file system (initrd.bin)
So as not to clog everyone's mailboxes, I will send the 1 MB zImage file to you 
at your personal email address. 

Let me know if you want the 15 MB initrd.bin file. 
I can split it and send it to you in email attachment sized pieces, as I did 
previously with the 5500v31c.zip SharpROM.
I will only send the 15 MB file system if you ask for it, so as to not clog 
your email unnecessarily.
If anyone else wants these, let me know.


Cordially,
Ron Hardy


> Date: Fri, 25 Jun 2010 20:36:07 -0400
> From: [email protected]
> To: [email protected]
> Subject: [Angstrom-distro-users] zImage for sharp 3.10 rom
> 
> Does anybody have a kernel (zImage file) for sharp 3.10 rom.
> 
> Must be standalone or initrd.bin with kernel integrated.
> 
> Im trying to get sharp rom booting with kexecboot.
> 
> Cheers,
> 
> Felipe
> 
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