Re: etherboot/netboot problems with Linux kernel 2.4.7

[Hans-Peter Jansen <hpj@urpla.net>]

On Monday, 3. September 2001 16:20, James Pearson wrote:
> I've been using etherboot/netboot to boot diskless Linux machines using
> various kernels (2.2.5 -> 2.4.2) using bootp. I recently wanted to use a
> 2.4.7 kernel - so I set things up in exactly the same way as I've done
> many times before, but when the kernel boots it stops with the error:
>
> Root-NFS: No NFS server available, giving up.
>
> Having searched around on the Net, I've found out that the ipconfig code
> for bootp/dhcp has changed in kernels greater than about 2.4.4, meaning
> that you have to use "ip=bootp" or similar as a kernel boot command line
> option to enable the kernel to get what it needs via bootp (in this
> case). In fact, just using "ip=" seems to work as well.
>
> Personally, I think it's rather strange that you have to give this
> argument even if you've already configured the kernel to get IP
> addresses via bootp/dhcp ...
>
> There was a discussion on linux-kernel mail list about this available
> via:
>
> http://groups.google.com/groups?hl=en&safe=off&th=d8413f907bcda8d7&seekm=li
>nux.kernel.15103.18845.562418.245774%40pizda.ninka.net#link10
>
> which includes a patch from  H.J. Lu that I'm using to work round this
> "problem"
>
> James Pearson

Have a look at offset 0x1000 in your boot images (if build with mknbi):
This is mine:
rw root=/dev/nfs nfsroot=/netboot/%s,v3 ip=rom

Hans-Peter

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