Re: system without RAM on node0 boot fail

Yinghai Lu
2008-01-31T07:07:06Z

On Jan 30, 2008 10:09 PM, H. Peter Anvin <hpa@zytor.com> wrote:
> Christoph Lameter wrote:
> > x86 supports booting from a node without RAM?

it is a two sockets system. only 4G RAM installed on node1.

>
> From the looks of it I would say he probably has the boot node numbered 1.
>
> The e820 map is also "interesting" - doesn't list the first 256 bytes,
> which corresponds to the first quarter(!) of the real-mode exception table.

i kexec that from 2.6.24 (with discontinuous and slab)
so that e820 is passed by kexec from first kernel. normal pxeboot will
have start for 0.

YH