Kernel Parameter Passing

[Vasanthan]

Hi,
 I have added some code to Grub so that it could pass some information to
kernel.  This idea came when i try to boot Linux remotely using Grub. ( 
There is
only  one laptop that could be used as Linux server in that windows 
network ).
The parameters obtained by Grub form bootp server can't be passed to Linux 
so I
have added some code so that that (network ) data is automatically inserted 
in
the command line. For example the command line ( only for the
kernel command ) "nfsroot=$sa:/tftpboot" is expanded into "nfsroot=0.0.0.0
:/tftpboot".

The following files are modified:
 stage2/cmdline.c ( primary )
 stage2/builtin.c    ( the function expand_cmdline called )
 stage2/shared.h   ( prototype for expand_cmdline )

 netboot/misc.c     ( secondary, for $ip,$sa,netmask, $gw )
 netboot/main.c     ( simple change but makes a static variable into global,
the variable is netmask )

Please do analyse and test the code before accepting this code. (any way i'm
going to use it :)

I have attached the Patch. apply this patch to grub-0.92

Thanks,
Vasanthan

cmdl.patch.gz
Description: inline filename="cmdl.patch.gz"