From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] Buildroot root fs over NFS bug
Date: Tue, 28 Jun 2011 16:33:15 +0200 [thread overview]
Message-ID: <20110628163315.7f9a2527@skate> (raw)
In-Reply-To: <4E09C8A0.8000808@labri.fr>
Hello,
Le Tue, 28 Jun 2011 14:27:12 +0200,
Jigar SOLANKI <jigar.solanki@labri.fr> a ?crit :
> I'm trying to build a full Linux environment on a Virtex4 FPGA board.
> I'm actually using a sparc's clone (LEON).
> I've successfully built and run the system using grmon
> grmon> load image.ram
> grmon> run
>
> But when it comes to mount the root filesystem over NFS, i get the
> following error :
According to the following log, you are not mounting your root
filesystem over NFS.
> ...
> IP-Config: Complete:
> device=eth0, addr=10.10.10.1, mask=255.255.255.0,
> gw=10.10.10.254, host=houat, domain=, nis-domain=(none),
> bootserver=10.10.10.254, rootserver=10.10.10.254, rootpath=
> Freeing unused kernel memory: 5060k freed
This is the last line from the kernel.
> Initializing random number generator... done.
This is the first line from the userspace initialization scripts. So I
guess your root filesystem is in an initramfs.
> Starting network...
> ip: RTNETLINK answers: File exists
> Starting NFS statd: touch: /var/lock/subsys/nfslock: No such file or
> directory
presumably the nfs-utils init script forgets to create this subsys
directory.
> done
> Starting NFS services: *** invalid open64 call: O_CREAT without mode
> ***: /usr/sbin/exportfs terminated
> ======= Backtrace: =========
> /lib/libc.so.6(__open64_2+0x28)[0x50133790]
> /usr/sbin/exportfs[0x15ca8]
> /usr/sbin/exportfs[0x13d90]
> /usr/sbin/exportfs[0x11f3c]
> /lib/libc.so.6(__libc_start_main+0x10c)[0x50079674]
> /usr/sbin/exportfs[0x11154]
> ======= Memory map: ========
> 00010000-00019000 r-xp 000000
Looks like a bug in exportfs.
But if your goal is to mount a root filesystem over NFS, then the
nfs-utils package is useless. The kernel contains all the necessary
bits to mount a NFS filesystem as the root filesystem.
Regards,
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2011-06-28 14:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-28 12:27 [Buildroot] Buildroot root fs over NFS bug Jigar SOLANKI
2011-06-28 14:33 ` Thomas Petazzoni [this message]
[not found] ` <4E0B2562.9090208@labri.fr>
2011-06-29 14:57 ` Thomas Petazzoni
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