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While trying to install mongo db on my centos 5

-bash: ./mongod: /lib64/ bad ELF interpreter: No such file or directory

after command uname -a I am getting this

Linux 2.6.32 #1 SMP Thu Sep 22 13:24:07 MSD 2011 i686 i686 i386 GNU/Linux
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up vote 3 down vote accepted

You are attempting to run a x86_64 (64bit) program on a x86 (32bit) machine.

Go get mongo db install for 32bit, and that'll fix it.

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