Re: iptables - Couldn't load target error

[Saravanan Chanemouganandam <schane@osmozis.com>]

Hi vda,

I accept your comment and others that it was not a busybox related issue. 

Well, here is my situation.I built a small rootfs for my arm pxa270 target 
board on the host x86 machine using the latest Buildroot. I then downloaded & 
installed iptables(v1.3.8)  using 

make KERNEL_DIR=/home/sara/cm-x270/linux-2.6.16 
CC=/home/sara/BuildRoot/buildroot/build_arm/staging_dir/usr/bin/arm-linux-gcc 
LD=/home/sara/BuildRoot/buildroot/build_arm/staging_dir/usr/bin/arm-linux-ld 
BINDIR=/home/sara/BuildRoot/buildroot/project_build_arm/uclibc/root/sbin
LIBDIR=/home/sara/BuildRoot/buildroot/project_build_arm/uclibc/root/lib

make BINDIR=/home/sara/BuildRoot/buildroot/project_build_arm/uclibc/root/sbin
LIBDIR=/home/sara/BuildRoot/buildroot/project_build_arm/uclibc/root/lib 
install

command install all iptables into the rootfs under 
"/home/sara/BuildRoot/buildroot/project_build_arm/uclibc/root" with all 
iptables and extension supports are built into linux kernel 
"/home/sara/cm-x270/linux-2.6.16" image. 

I then boot my cm-x270 target board using setboot os "console=ttySA0,38400 
root=/dev/nfs 
nfsroot=/home/sara/BuildRoot/buildroot/project_build_arm/uclibc/root 
ip=::::cm-x270:eth0".

Now, when I perform MASQUERADE , it couldn't find libipt_MASQUERADE.so but it 
is installed in /lib/iptables.

sara:/$ ldconfig -v show /lib , /usr/lib. 
ldconfig: uClibc version
/lib:
        libc.so.0 => libuClibc-0.9.29.so
        libnsl.so.0 => libnsl-0.9.29.so
        libdl.so.0 => libdl-0.9.29.so
        librt.so.0 => librt-0.9.29.so
        libgcc_s.so.1 => libgcc_s.so.1
        libncurses.so.5 => libncurses.so.5.6
        libutil.so.0 => libutil-0.9.29.so
        libcrypt.so.0 => libcrypt-0.9.29.so
        ld-uClibc.so.0 => ld-uClibc-0.9.29.so
        libpthread.so.0 => libpthread-0.9.29.so
        libresolv.so.0 => libresolv-0.9.29.so
        libm.so.0 => libm-0.9.29.so
/usr/lib:
        libstdc++.so.6 => libstdc++.so.6.0.8
        libz.so.1 => libz.so.1.2.3

/lib/iptables is not visible in the system to load the library. 

thanks
Sara



Le Jeudi 20 Décembre 2007 11:03, Denys Vlasenko a écrit :
> On Wednesday 19 December 2007 11:21, Saravanan Chanemouganandam wrote:
> > Hi all,
> >
> > I have some problem with iptables (v1.3.8) and extension supports
> > libraries installed to the buildroot's root filesystem (/lib/iptables)
> > running on Xscale pxa270.
> >
> > iptables with MASQUERADE support throws Couldn't load target error. The
> > following strace shows that it tries to open libraries in the /lib and in
> > the /usr/lib instead of /lib/iptables.
>
> Last time I built iptables from source it was iptables-1.3.5.
> iptables are not using de-facto standard "configure+make"
> install process, they take make variables instead.
>
> Mine was built with:
>
> # Do NOT point it to non-pristine kernel tree!
> # (seen horrible miscompilation on 32:64 user:kernel x86_64)
> KERNEL_DIR=/usr/src/kernel/delay/linux-2.6.17.11.src
>
> make KERNEL_DIR="$KERNEL_DIR" BINDIR=... LIBDIR=... MANDIR=...
>
> I guess you built your iptables with wrong/unset LIBDIR.
>
> People were right pointing out that this is not busybox related question.
> --
> vda