[gentoo-embedded] emerge nfs-utils fails

[gentoo-embedded] emerge nfs-utils fails

[Anders Bruun Olsen]

Hi,

I have installed a stage3-x86-uclibc in a chroot env. in order to make a
firewall on a nice epia-based machine with only a CF card as storage.
What I want to do is share /usr/portage and /usr/portage/distfiles on my
main machine and mount it on my firewall. I already have this working
with two other machines mounting from my workstation.
When I try to compile nfs-utils-1.0.6-r4 in my uclibc environment it fails with
this error:

gcc  -L../../support/lib -o mountd mountd.o mount_dispatch.o auth.o
rmtab.o cache.o svc_run.o -lexport -lnfs -lmisc  -lwrap -lnsl
../../support/lib/libnfs.a(svc_socket.o)(.text+0xb6): In function
`svc_socket':
: undefined reference to `getrpcbynumber_r'

I have looked in the source and can see that it includes netdb.h. In
/usr/include/netdb.h it includes rpc/netdb.h if __USE_MISC is defined.
getrpcbynumber_r is defined in rpc/netdb.h.
My first though was that __USE_MISC wasn't defined, so I tried compiling
with CFLAGS="-D__USE_MISC", but that didn't help.
I have also tried altering the netdb.h and rpc/netdb.h to define
getrpcbynumber_r no matter if __USE_MISC is set or not, but that didn't
work either.
This is now beyond my (virtually unexisting) C-skills.
Can anybody help?

I am using uclibc-0.9.26-r7.

-- 
Anders
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Re: [gentoo-embedded] emerge nfs-utils fails

[Ned Ludd]

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On Sat, 2004-12-04 at 07:48, Anders Bruun Olsen wrote:
> Hi,
> 
> I have installed a stage3-x86-uclibc in a chroot env. in order to make a
> firewall on a nice epia-based machine with only a CF card as storage.
> What I want to do is share /usr/portage and /usr/portage/distfiles on my
> main machine and mount it on my firewall. I already have this working
> with two other machines mounting from my workstation.
> When I try to compile nfs-utils-1.0.6-r4 in my uclibc environment it fails with
> this error:
> 
> gcc  -L../../support/lib -o mountd mountd.o mount_dispatch.o auth.o
> rmtab.o cache.o svc_run.o -lexport -lnfs -lmisc  -lwrap -lnsl
> ../../support/lib/libnfs.a(svc_socket.o)(.text+0xb6): In function
> `svc_socket':
> : undefined reference to `getrpcbynumber_r'
> 
> I have looked in the source and can see that it includes netdb.h. In
> /usr/include/netdb.h it includes rpc/netdb.h if __USE_MISC is defined.
> getrpcbynumber_r is defined in rpc/netdb.h.
> My first though was that __USE_MISC wasn't defined, so I tried compiling
> with CFLAGS="-D__USE_MISC", but that didn't help.
> I have also tried altering the netdb.h and rpc/netdb.h to define
> getrpcbynumber_r no matter if __USE_MISC is set or not, but that didn't
> work either.

This is what we know on the subject.
http://www.uclibc.org/lists/uclibc/2003-December/007782.html

The solution proposed here might work, it's probably just a bad idea.
http://www.uclibc.org/lists/uclibc/2004-February/008360.html

What would be ideal is for somebody to write a reentrant version of 
getrpcbynumber_r() for uClibc itself.

> This is now beyond my (virtually unexisting) C-skills.
> Can anybody help?
> 
> I am using uclibc-0.9.26-r7.
-- 
Ned Ludd <solar@gentoo.org>
Gentoo (hardened,security,infrastructure,embedded) Developer

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Re: [gentoo-embedded] emerge nfs-utils fails

[Anders Bruun Olsen]

On Sat, Dec 04, 2004 at 08:53:30AM -0500, Ned Ludd wrote:
> This is what we know on the subject.
> http://www.uclibc.org/lists/uclibc/2003-December/007782.html
> The solution proposed here might work, it's probably just a bad idea.
> http://www.uclibc.org/lists/uclibc/2004-February/008360.html

Okay, so I am guessing nobody has a uclibc-based nfs-client up and
running then?

> What would be ideal is for somebody to write a reentrant version of 
> getrpcbynumber_r() for uClibc itself.

Wish I was adept enough in C to write it myself :-/

Anyway, thanks for your reply.

-- 
Anders
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Re: [gentoo-embedded] emerge nfs-utils fails

[Buttchereit, Axel (XLsigned)]

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Hash: SHA1

Anders Bruun Olsen wrote:
| On Sat, Dec 04, 2004 at 08:53:30AM -0500, Ned Ludd wrote:
|
|>This is what we know on the subject.
|>http://www.uclibc.org/lists/uclibc/2003-December/007782.html
|>The solution proposed here might work, it's probably just a bad idea.
|>http://www.uclibc.org/lists/uclibc/2004-February/008360.html
|
|
| Okay, so I am guessing nobody has a uclibc-based nfs-client up and
| running then?

"busybox" supports nfs-client (Version 2).
If "portmap" isn't running on your target/client system
(as in my case), the following (nolock) should work:

mount -t nfs -o nfsvers=2,nolock server:/directory /mountpoint

I'm getting a warning message, because the kernel (2.6.9-gentoo-r4)
that I'm using on the client is configured for NFS 3.

If "full" (V3-client/server) nfs support is required,
building "nfsutils" with "uClibc" seems to be necessary...
...but I haven't tried that.

- -Axel

P. S.: Are there any links between "gentoo-installer" and "gentoo-embedded"?
~  I'm working on PXE-Booting/Installing "gentoo-linux"
~  and/or "Win32-systems". Installation/Setup should start after booting into a
~  "gentoo-micro-linux" (2.6.X-Network&Storage + uClibc + busybox + nfs/smb-client
~  + xfsutils/ntfsutils/parted/...). So I'm interested in both projects.
~  At the moment I'm building kernel+modules from gentoo-sources (2.6.9-r4)
~  and "rootfs" from a customized "uClibc-buildroot"-package.

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Re: [gentoo-embedded] emerge nfs-utils fails

[Mike Frysinger]

On Sunday 05 December 2004 08:27 am, Anders Bruun Olsen wrote:
> Okay, so I am guessing nobody has a uclibc-based nfs-client up and
> running then?

you only need portmap and nfs support in the kernel to mount nfs partitions 
(be a nfs-client)
-mike

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Re: [gentoo-embedded] emerge nfs-utils fails

[Anders Bruun Olsen]

On Sun, Dec 05, 2004 at 05:03:34PM -0500, Mike Frysinger wrote:
> > Okay, so I am guessing nobody has a uclibc-based nfs-client up and
> > running then?
> you only need portmap and nfs support in the kernel to mount nfs partitions 
> (be a nfs-client)

Then the description for nfs-utils is somewhat confusing:

*  net-fs/nfs-utils
      Latest version available: 1.0.6-r5
      Latest version installed: 1.0.5-r1
      Size of downloaded files: 259 kB
      Homepage:    http://nfs.sourceforge.net/
      Description: NFS client and server daemons
      License:     GPL-2

But since I only need nfs-client capabilities, I guess my problems have
been solved (until the next one ;)

Thanks!

-- 
Anders
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