Re: Not enough memory when entering CLI

Joshua,

I agree, the memory map probably have not been initialized by the time I
tried to enter CLI during POST.

Still I have open question:
How gPXE gain the 16MB memory region? what do I need to change in order to
have 20MB?

This is not the only machine that has problem entering the CLI. We should
get to the bottom of it. I am willing to help with troubleshooting.

Thanks,

Itay

On Sun, Oct 25, 2009 at 7:12 PM, Joshua Oreman <[email protected]> wrote:

> On Sun, Oct 25, 2009 at 9:26 AM, Itay Gazit <[email protected]> wrote:
> > Joshua,
> >
> > This is IBM BIOS, the machine is IBM blade HS22.
> >
> > Few dozens lines of dmesg:
> > [snip]
>
> Looks like the kernel is getting the memory map fine, but gPXE is not.
> I've thoroughly investigated the kernel setup code for any magic it
> might have for the memory map, but it makes the exact same checks as
> gPXE does.
>
> The only possibility I can think of is that the memory map might not
> have been initialized by the time gPXE runs. This looks like it's in a
> ROM, and in that case there are two prompts:
>
> "Press Ctrl-B to configure gPXE (PCI xx:xx.x)..." runs during POST
> (i.e. *before* the system is ready to use) and on some systems the
> memory map is not set up by then.
>
> "Press Ctrl-B for the gPXE command line..." runs when gPXE is invoked
> as a boot device.
>
> Always use the second prompt. The first only exists because it was an
> OEM requirement for option ROMs.
>
> If you are using it already, let me know and I'll give you some
> debugging instrumentation you can put in.
>
> -- Josh
>

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