libmodbus

Run LibModbus examples on Linux

Asked by Nenad Milasinovic

Hi,

When i compile some exmaple and try to run executable file, i receive message:
./random-test-slave: error while loading shared libraries: libmodbus.so.2: cannot open shared object file: No such file or directory
Any ideas why this happens?

Thanks in advance.

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Stéphane Raimbault (sra) said : 		#1

/etc/ld.so.conf.d/*

/etc/ld.so.conf.d/libc.conf
# libc default configuration
/usr/local/lib

# ldconfig

If you compile with Autotools (./configure & make),
./random-test-slave (in tests) is just a script able to dynamic load
the required lib (so your pb is strange).
You can also try to use the provided PPA.

https://launchpad.net/~sra/+archive

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Steven Hsu (sintsu1101) said : 		#2

The same problem occurs to me, after I use launchpad deb install libmodbus, the problem is solving.

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Steven Hsu (sintsu1101) said : 		#3

Such question happens to ubuntu but centos won't

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Martin Mohan (martinmohan) said : 		#4

I got the same error on ubuntu 10.04.
Make sure you run ldconfig with root permission.
sudo ldconfig

To check libmodbus is installed
sudo ldconfig -v | grep libmodbus

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sebastian pizarro (nelyafinwe) said : 		#5

On Archlinux,
Create file /etc/ld.so.conf.d/libc.conf (must be root)
Edit file /etc/ld.so.conf.d/libc.conf (must be root)
    Add /usr/local/lib
    Save File
Run ldconfig as root.

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Stéphane Raimbault (sra) said : 		#6

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