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mpc5121 linux boot via nfs not working

Question asked by Brenda Spaur on Apr 22, 2009
Latest reply on Jun 1, 2010 by Johnny Wall

I'm new to LTIB.  I'm having trouble getting an nfs mount of my rootfs to work.   I followed the instructions in AN3765: Porting Linux for the MPC5121e, Appendix B.  Linux boot using "run net_nfs" fails with an "nfs: server 192.168.1.32 not responding" error.  I then tried to simply mount the rootfs manually and that fails with a "Protocol not supported" error.  Both host and target have fixed IP addresses.  Specifics:

 

host/nfs_server: 192.168.1.32

target: 192.168.1.45

 

host>cd /tftpboot 

host>ls -l ltib
lrwxrwxrwx 1 brenda brenda 24 2009-04-20 14:16 ltib -> /home/brenda/ltib/rootfs

host>exportfs

/home/brenda/ltib-mpc5121ads-20081208/rootfs
                192.168.1.45

 

target>mount 192.168.1.32:/tftpboot/ltib /mnt
mount: mounting 192.168.1.32:/tftpboot/ltib on /mnt failed: Protocol not supported

 

The host syslog simply shows that mountd authenticated a mount request from 192.168.1.45.  I've been trying to figure out what the "Protocol not supported" error means with no luck.  Any help appreciated.

 

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