CTCs and root NFS

Ashley Chaloner <[email protected]> Thu, 28 Nov 2002 15:38:25 +0000 (GMT)
Newsgroups gmane.linux.redhat.s390
Message-ID <Pine.LNX.4.44.0211281535260.30144-100000@labvista-36.cslab.dcs.warwick.ac.uk>
Hello there,

I'm trying to get a 'diskless' VM by IPling a kernel from the 
reader and using a parmfile (in the reader, after the kernel) to determine 
the hostname and CTC info (IP address, netmask and the partner's IP 
address). I am also using V-DISK as swap.

I have already compiled the CTC stuff into the kernel, and am passing the 
kernel a parameter like "ctc=ctc0,0x2000,0x2001", but this has no effect 
because I need the CTC to be activated in the kernel initialisation 
functions (before the root_nfs stuff) so that a NFS connection can be 
made.

(I know the parmfile trick works because I can boot from the reader but 
still using DASD and after the DASD is mounted, the CTC connection 
starts fine using info from /proc/cmdline .)


So my question is:
Has anyone else tried this and got it to work, or has anyone got any 
useful comments/suggestions ? 

Or is there a chance the (official s390) kernel could be modified to spot 
root_nfs options and start up the networking stuff before mounting / ?

Thanks in advance,

Ashley Chaloner.