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After installing Ubuntu 14.04 and installing keepalived's deb, keeplived cannot start:

aaroot@aatest1:~$ sudo /usr/sbin/keepalived
/usr/sbin/keepalived: error while loading shared libraries: libnetsnmpmibs.so.30: cannot open shared object file: No such file or directory

But using ldd to check shared library, the missing library (the symbolic link libnetsnmpmibs.so.30 and the real library) can be found:

aaroot@aatest1:~$ sudo ldd /usr/sbin/keepalived|grep libnetsnmpmibs
    libnetsnmpmibs.so.30 => /usr/lib/x86_64-linux-gnu/libnetsnmpmibs.so.30 (0x00007fd32c3c5000)

Re-executing ldconfig shows the libnetsnmpmibs.so.30 is found:

aaroot@aaaatest1:~$ sudo ldconfig -v |grep libnetsnmpmibs
/sbin/ldconfig.real: Path `/lib/x86_64-linux-gnu' given more than once
/sbin/ldconfig.real: Path `/usr/lib/x86_64-linux-gnu' given more than once
/sbin/ldconfig.real: /lib/x86_64-linux-gnu/ld-2.19.so is the dynamic linker, ignoring

    libnetsnmpmibs.so.30 -> libnetsnmpmibs.so.30.0.2

Are there any problems?

1

Problem solved. After using strace to check system call, I found that binary tried to open ld.so.cache and got permission denied. Though apparmor blocked that behavior and remove apparmor file, and the binary can run perfectly

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