Re: (Sparc64) 2.6.20 seems to ignore initramfs

From: Tomasz Chmielewski
Date: Fri Feb 23 2007 - 10:17:40 EST

Andrew Walrond schrieb:
On Friday 23 February 2007 13:32, Tomasz Chmielewski wrote:
Andrew Walrond schrieb:
On a Sun T1000 I am trying to boot 2.6.20 using initramfs. (I use the
same procedure successfully on x86_64 and itanium2 servers).

The relevent silo section looks like this:


The kernel loads and boots and I see

So it knows about the initramfs, but then tries to mount a root
filesystem instead...

I haven't tried this (initramfs) with earlier kernels, so I don't know
whether this is a regression. Any clues about how to solve this would be
greatly appreciated.
Does it make a difference if you embed initramfs directly in the kernel?


Hi Tomasz. I can't tell; The combined kernel+initramfs is bigger than the 8Mb silo allocates for the kernel, and it does this:

boot: chunky
Allocated 8 Megs of memory at 0x40000000 for kernel
Fatal error: Image too large to fit in destination

Fatal error: Image too large to fit in destination

Error loading /boot/chunky

Image not found.... try again

I don't see any silo config options to increase this value in the docs.

Good idea though :)

Try to decrease the initramfs size just to know if it boots correctly.

I.e., put just a sh/bash/ash/dash binary there (probably /dev/console node, too), executed in init.

Then, try to start the kernel with initramfs embedded in the kernel, then as initrd etc. - this will show if the fault is on your side, or kernel's.

Tomasz Chmielewski
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