nfsroot error

I had used beowulf linux cluster system with Debian GNU/Linux (woody).
But last week, I had updated it to sarge for some libraries and met a
serious problem.

NFSROOT does not work.

When diskless node boot and try mount root file syste on nfs server,
it failed. But if I try mount that directory from another system, it
succese. /var/log/syslog file note below,

==
Apr 30 09:37:49 van rpc.mountd: authenticated mount request from
node8:800 for /tftpboot/192.168.42.8 (/tftpboot/192.168.42.8)
==

and stop. There is no more message and diskless node boot fail. But
if I try from another system,

==
Apr 30 09:37:58 van rpc.mountd: authenticated mount request from
B612:892 for /tftpboot/192.168.42.8 (/tftpboot/192.168.42.8)
Apr 30 09:37:59 van rpc.mountd: authenticated mount request from
B612:896 for /tftpboot/192.168.42.8 (/tftpboot/192.168.42.8)
==

and I could access the mounted directory. My linux kernel has no
problem.(In my opinion.) This is a part of NFS on my kernel set.

#
# Network File Systems
#
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_SUNRPC=y


....and I thisnk there is no wrong configuration and make a netboot
kernel image from this kernel by mknbi-linux.

I don't know what is the problem. Any ideas?





--
Sincerely, Ki-young

Addition.

Nfsroot fails when boot, but nfsmount success another booted machine.

* K.Choi <kchoi@ihanyang.ac.kr> wrote :
> I had used beowulf linux cluster system with Debian GNU/Linux (woody).
> But last week, I had updated it to sarge for some libraries and met a
> serious problem.
>
> NFSROOT does not work.
>
> When diskless node boot and try mount root file syste on nfs server,
> it failed. But if I try mount that directory from another system, it
> succese. /var/log/syslog file note below,
>
>==
> Apr 30 09:37:49 van rpc.mountd: authenticated mount request from
> node8:800 for /tftpboot/192.168.42.8 (/tftpboot/192.168.42.8)
>==
>
> and stop. There is no more message and diskless node boot fail. But
> if I try from another system,
>
>==
> Apr 30 09:37:58 van rpc.mountd: authenticated mount request from
> B612:892 for /tftpboot/192.168.42.8 (/tftpboot/192.168.42.8)
> Apr 30 09:37:59 van rpc.mountd: authenticated mount request from
> B612:896 for /tftpboot/192.168.42.8 (/tftpboot/192.168.42.8)
>==
>
> and I could access the mounted directory. My linux kernel has no
> problem.(In my opinion.) This is a part of NFS on my kernel set.
>
> #
> # Network File Systems
> #
> CONFIG_NFS_FS=y
> CONFIG_NFS_V3=y
> CONFIG_NFSD=y
> CONFIG_NFSD_V3=y
> CONFIG_ROOT_NFS=y
> CONFIG_LOCKD=y
> CONFIG_LOCKD_V4=y
> CONFIG_EXPORTFS=y
> CONFIG_SUNRPC=y
>
>
> ...and I thisnk there is no wrong configuration and make a netboot
> kernel image from this kernel by mknbi-linux.
>
> I don't know what is the problem. Any ideas?
>
>
>
>
>


--
Sincerely, Ki-young