On Tue, 26 Dec 2006, Mark Glines wrote:

Guennadi Liakhovetski wrote:

quoted

u-boot version. Or just ask me. Or I could even just send you binaries to 
start with. Do you have JTag?...

No, I haven't made any hardware mods yet.

I asked about JTag because the U-boot you'll have to flash to boot an 
arch/powerpc based kernel has only been so far tested on one (mine) 
KuroboxHG. It is (hopefully) the same hardware as yours, but you never 
know...

Thanks for the offer.  Kernel binaries might actually help, just to make 
sure the hardware and bootloader are working properly.

Yes, I can send you the kernel, but I think, it is the u-boot that's most 
critical and difficult to build, since what I am running is some checkout 
from a git tree with a modified kurobox patch applied, and you might want 
to start with a precompiled u-boot. The fdt blob and the kernel are no 
longer as critical and much easier to build - just kernel.org kernel with 
the default defconfig, but I can send you those too, if you want.

The instructions on 
http://www.linuxnotincluded.pwp.blueyonder.co.uk/linkstation/u-bootinstall.html 
were a little broken in a few places, but still very helpful.  I've got 
U-boot 1.1.4 up and running.  It's just booting the old 2.4.17_mvl21 

quoted

from flash right now... 2.6.20-rc2 fails to boot.

No, those won't help you directly. That U-boot will not be able to boot an 
arch/powerpc based kernel. You have to know: there are currently 2 ways to 
boot a 2.6 kernel on a linkstation/kurobox. 1: which most (everybody 
except me) use - U-boot like what you've built or loader.o + an arch/ppc 
based kernel, 2: U-boot based on a version, capable of booting kernels 
with an fdt blob (i.e., per "mboot <kernel-addr> [<initrd-addr>] 
<fdt-addr>"). If you want the vanilla kernel you need the second method, 
hence a newer version of U-boot.

Look here: http://www.kurobox.com/revolution/downloads/contest/patchREADME 
for a somewhat rough README and here 
http://www.kurobox.com/revolution/downloads/contest/patches.zip are the 
patches (sorry about the zip - that was revolution's format of choice...)

But even if I send you an image of U-boot that works for me, I'd have to 
warn you if you don't have the jtag port enabled / are not ready to use it 
to recover a possible bricked kurobox. You've been warned...

I have ordered some serial port voltage converters, which I hope to use 
to get some diagnostics from the 2.6.20-rc2 kernel.  I don't hear any 
disk activity, and I wasn't able to get netconsole working, so I think 
it is dying fairly early in the boot process.  (At least, before PCI and 
network are up.)

Now you know why your kernel doesn't boot...

Thanks
Guennadi
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Guennadi Liakhovetski