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I'm trying to execute some binary with bash. I am getting a "Permission denied" message despite having given the full privileges (chmod 777) and being the 'root' user:

This is the file description:

-rwxrwxrwx  1 root root 641K Aug 22 15:04 wrapid

This is the error message:

bash: ./wrapid: Permission denied

Output of strace ./wrapid:

execve("./wrapid", ["./wrapid"], [/* 13 vars */]) = -1 EACCES (Permission denied)
write(2, "strace: exec: Permission denied\n", 32strace: exec: Permission denied ) = 32
exit_group(1) = ?
+++ exited with 1 +++

Output of ldd ./wrapid:

/usr/bin/ldd: line 104: lddlibc4: command not found not a dynamic executable

Output of file wrapid:

wrapid: ELF 64-bit LSB executable, x86-64, version 1 (SYSV),
dynamically linked (uses shared libs), for GNU/Linux 2.6.32,
BuildID[sha1]=0x817251da41b3c8684a68f6f4afa1b4cd8f116072, not stripped 

Output of uname -a:

Linux WR-IntelligentDevice 3.4.43-grsec-WR5.0.1.7_standard #2 SMP PREEMPT Thu Aug 22 16:27:28 CST 2013 i686 GNU/Linux 
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2

According to the info provided you are trying to run 64-bit executable on 32-bit kernel. It won't work that way. You either need 32-bit binary or 64-bit kernel/glibc libraries.

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