Mailing List Archive: Linux client cannot mount to NFS-Root: Portmap RPC call returned error 101

Linux client cannot mount to NFS-Root: Portmap RPC call returned error 101

Feb 13, 2008, 9:24 AM

Post #1 of 3 (6441 views)

Hello all,

I have seen various reports on this error posted in the past few
years, but was unable to find a resolution to the various postings.
I've googled the error messages too, and have hit on various sporadic
similar problems encountered with no resolutions ..

Apologize if this has been exhaustively queried upon in the past;
however, I'd like to try asking again, nevertheless:

Issue - testing to allow a server to PXE boot over the network to a
TFTP/DHCP/NFS enabled PXE boot server that contains the NFS-Root image
so that the server can run Fedora 6 onto an NFS-root mount.

PXE server:
has tftp/dhcp and NFS daemons working; I was able to test deploying
another server via kickstart against my tftpd,dhcpd and nfs
confiurations. I have also successfully mounted manually to the
/tftpboot and /nfsroot exports; /pxelinux.cfg/default file is
configured correctly:

DEFAULT vmlinuz-2.6.18-2.6.18.2Test3
APPEND root=/dev/nfs rw
nfsroot=192.168.1.5:/export/images/fedora6_x86-64 ip=192.168.1.30

- I have configured the kernel via make menuconfig to enable the Root
Files Systems on NFS parameter; and recompiled - (instructions from
How2Forge on downloading source, recompiling etc.)
- I done the mknod /dev/nfs b 0 255
- disabled /etc/syslinux/config
- have exported in my PXE server's images directory the approriate -
bin dev etc lib mnt proc root sbin tmp usr var - directories in root

PXE Client - is able to get dhcp address, see the pxelinux.cfg ...
etc.... seems to proceed but stumbles thereafter with the following
error:

"Looking up port of RPC 10003/2 on 192.168.1.5
Portmap RPC call returned error 101
Root-NFS Unable to get nfsd port # from server, using default ...."
.............

Any thoughts, pointers, advise and suggestions would be greatly appreciated.

best,
--
A S P A S I A
. . . . . . . . . . ..

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Re: Linux client cannot mount to NFS-Root: Portmap RPC call returned error 101 [ In reply to ]

hpa at zytor

Feb 13, 2008, 12:25 PM

Post #2 of 3 (6140 views)

Permalink

a s p a s i a wrote:
> All - forgive me for the naive question:
>
>> NFS problems aren't related to syslinux or any boot loader at all. This
>> really isn't the forum for such questions.
>
> Am a newbie to PXE booting and Linux; I misunderstood my nomenclature
> and thought PXE booting was somehow related to "syslinux"... thank you
> for clarifying that it is not.
>
> I get confused, as I used the following as a guide to my objective:
>
> http://www.digitalpeer.com/id/linuxnfs
>
> I will therefore appropriately search for the mailing list for
> linuxnfs, fedora/centos and PXE-booting-on linux specifically.
>

Well, it is... PXELINUX (part of SYSLINUX) is what's used to get the
system to the point where the kernel and initrd is loaded.

At that point, things are technically out of scope for this mailing
list, although the consensus last time the question was asked was to
allow that kind of discussion anyway.

-hpa

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Re: Linux client cannot mount to NFS-Root: Portmap RPC call returned error 101 [ In reply to ]

aspasia.sf at gmail

Feb 13, 2008, 12:37 PM

Post #3 of 3 (6144 views)

Permalink

> Well, it is... PXELINUX (part of SYSLINUX) is what's used to get the
> system to the point where the kernel and initrd is loaded.

I thought so, I think it was your paper I read when I started building
my PXE server.

> At that point, things are technically out of scope for this mailing
> list, although the consensus last time the question was

I do understand; and it is difficult to delineate between components
when things somehow interrelate closely as in the PXE installation and
remote NFS-root exporting of binaries to clients that
dhcp-pxe-boot....

> allow that kind of discussion anyway.

that is nice to know; thank you sir.

- asp.
--
A S P A S I A
. . . . . . . . . . ..

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