[gPXE] interrupt and serial

[Luca]

On Tue, Feb 9, 2010 at 6:16 AM, Shao Miller <Shao.Miller at yrdsb.edu.on.ca>wrote:

> Luca wrote:
>
>> Hi all,
>>  I wanted to pass some parameters to gPXE, when it starts. As I do not
>> want to rebuild the gPXE image every time with a new script...
>>
>
> Would the InitRD+CmdLine feature be useful to you?
> http://etherboot.org/share/sha0/gpxe/src/bin/gpxe.lkrn
>

This gPXE build is a "Linux kernel"-format binary which you can load with
> any bootloader capable of loading Linux kernels (bzImage).  You can pass a
> gPXE script as an initrd and this gPXE will find it.
>
> For GRUB, that might look like:
>
> title Load gPXE
>  kernel /gpxe.lkrn
>  initrd my_script.gpxe
>
>
So if I got it right, I would keep using the same gPXE image and I would
just change the gpxe script at every boot.

Problem is that script is generated by a central entity just before a
workstation is gPXE booted so I can't store the script on the workstation, I
need  gPXE to contact a remote server  and get it.

I don't know if that's useful to you or not.  Can be handy with QEmu without
> constantly rebuilding gPXE.
>
> # qemu -kernel gpxe.lkrn -initrd my_script -hda /dev/null
>

> Disclaimer: All claims and opinions are solely those of myself and do not
> and should not be perceived as representing the Etherboot nor the gPXE
> projects in any way.  Thank you for your understanding.
>
> - Shao Miller
>
>
>
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