Help needed with initramfs

Help needed with initramfs

[Jean-Michel Hautbois]

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Hi everybody !

I have a working Kernel with a NFS mounted root filesystem.
I am trying to use my root file system, but with the use of initramfs.

Compiling the kernel is not a problem, but when booting, I have the
following error:

"Insufficient memory for kernel at address 0! (_start=00400000, uncompressed
size=005a0b0c)"

I understand that my load address is 0x400000 and that the image is too big,
but I can't find where this load adress is defined.
It seems (from the .../arch/powerpc/boot/wrapper file) that this adress is
calculated from the _start adress in the objfile.

Is it possible to change this adress ?
What can I do (with the idea of not reducing the size of my rootfs) ?

Thanks in advance !
Best Regards,
JM

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Re: Help needed with initramfs

[Scott Wood]

On Mon, Jan 26, 2009 at 11:17:05AM +0100, Jean-Michel Hautbois wrote:
> I have a working Kernel with a NFS mounted root filesystem.
> I am trying to use my root file system, but with the use of initramfs.
> 
> Compiling the kernel is not a problem, but when booting, I have the
> following error:
> 
> "Insufficient memory for kernel at address 0! (_start=00400000, uncompressed
> size=005a0b0c)"
> 
> I understand that my load address is 0x400000 and that the image is too big,
> but I can't find where this load adress is defined.
> It seems (from the .../arch/powerpc/boot/wrapper file) that this adress is
> calculated from the _start adress in the objfile.
> 
> Is it possible to change this adress ?
> What can I do (with the idea of not reducing the size of my rootfs) ?

You can change link_address in arch/powerpc/boot/wrapper, or provide a
vmlinux_alloc method in the wrapper ops struct.

-Scott

Re: Help needed with initramfs

[Jean-Michel Hautbois]

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2009/1/26 Scott Wood <scottwood@freescale.com>

> On Mon, Jan 26, 2009 at 11:17:05AM +0100, Jean-Michel Hautbois wrote:
> > I understand that my load address is 0x400000 and that the image is too
> big,
> > but I can't find where this load adress is defined.
> > It seems (from the .../arch/powerpc/boot/wrapper file) that this adress
> is
> > calculated from the _start adress in the objfile.
> >
> > Is it possible to change this adress ?
> > What can I do (with the idea of not reducing the size of my rootfs) ?
>
> You can change link_address in arch/powerpc/boot/wrapper, or provide a
> vmlinux_alloc method in the wrapper ops struct.
>
> -Scott
>

Thanks !
It works perfectly :)

JM

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