Front end not opening Apache issue

libopmnoraclenls.so: unable to open library error in opmnctl logs.

libclntsh.so.10.1: wrong ELF class: ELFCLASS64 Killed

Solution

1) Simply copy the file libclntsh.so.10.1 file from a working
environment to non-working environment into the lib32 directory.

But, this is applicable only to the same version of OS.

OR

2) You can generate libclntsh.so.10.1 by executing the following command

$10.1.3_OH/bin/genclntsh -32

3) Setting the correct oracle home to 10.1.3 then running that ./bin/genclntsh helps:

If you run with the -32 option it updates the ./lib32 version of libclntsh.so.10.1
If you run without the -32 option it updates the ./lib version of libclntsh.so.10.1
( and similarly if it was set to 10.1.2, libclntsh.so.10.1 will be created in 10.1.2/lib )

So it is very important to set OH to 10.1.3.

 

Ref:

http://bkpappsdba.blogspot.com/2008/11/r12-install-and-post-install-issues-in.html

https://mpoojari.wordpress.com/2012/04

/04/libclntsh-so-10-1-wrong-elf-class-elfclass64-killed/