Executing 32 bit code under Ubundu 64 bit installation error- No such file or directory

Question

Why I am getting "No such file or directory" error when I am running 32 bit executable in a 64 bit Ubundu installation?

What I expect is : A message that "file is invalid", OR the 32 bit code get run correctly.

Details below:

user@user-desktop:~/32_64$ ls
myfile32bit  myfile64bit

user@user-desktop:~/32_64$ file myfile32bit
myfile32bit: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, not stripped

user@user-desktop:~/32_64$ file myfile64bit
myfile64bit: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, not stripped

user@user-desktop:~/32_64$ ls -l
total 1532
-rwxrwxrwx 1 user user  126381 2011-10-11 13:20 myfile32bit
-rwxrwxrwx 1 user user  146785 2011-10-22 12:46 myfile64bit

user@user-desktop:~/32_64$ ./myfile64bit
Hello World

user@user-desktop:~/32_64$ ./myfile32bit
-bash: ./myfile32bit: No such file or directory

user@user-desktop:~/32_64$ uname -a
Linux user-desktop 2.6.32-33-generic #70-Ubuntu SMP Thu Jul 7 21:13:52 UTC 2011 x86_64 GNU/Linux

Answer 1

There is a great article about this exact problem here:

http://www.markusbe.com/2009/09/about-running-32-bit-programs-on-64-bit-ubuntu-and-shared-libraries/