Can't run an executable file

dungnguyen · 06-29-2012, 02:28 AM

Hi all,

I use qemu-system-arm to run an bootable image, but there are something wrong but I don't know how to fix it.
I have a file called hello_arm in dir /home. It's an executable file. I want to run it in terminal. Here is what I do:

root@linaro:/home# ./hello_arm

but there is an error here

-bash: ./hello_arm: No such file or directory

I'm sure that hello_arm is there. How can I fix this error?
This is my fist post in LQ and sorry about my bad English skill.

Didier Spaier · 06-29-2012, 02:35 AM

Hi, welcome to LQ.

Maybe hello_arm is an executable for an other architecture than your machine's architecture (e.g. 64 bit vs 32 bit).

To make sure please post output of following commands:

Code:

uname -a
file /home/hello_arm
ls -l /home/hello_arm

acid_kewpie · 06-29-2012, 02:36 AM

can you please *prove* that the file is there? "ls -l" in that directory

dungnguyen · 06-29-2012, 02:39 AM

Thanks for your respond.

Here is some line in my terminal:

root@linaro:/home# ls -l
total 8
-rwxr-xr-x 1 root root 7569 Jun 28 12:39 hello_arm

root@linaro:/home# uname -a
Linux linaro 2.6.38-1003-linaro-omap #4~ppa5-Ubuntu SMP PREEMPT Wed May 25 14:44:32 UTC 2011 armv7l armv7l armv7l GNU/Linux

root@linaro:/home# file hello_arm
hello_arm: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped

Didier Spaier · 06-29-2012, 02:54 AM

I don't know ARM architecture but I would check that hello_arm was compiled for the same ARM version which run on your computer, maybe look at this page.

dungnguyen · 06-29-2012, 04:53 AM

Thank Didier Spaier,
You said that "Maybe hello_arm is an executable for an other architecture than your machine's architecture (e.g. 64 bit vs 32 bit)", so I check another file in my /bin such as /bin/bash. Then, I have:

Code:

root@linaro:~# file /bin/bash
/bin/bash: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.16, stripped

It's quite similar with what I have with hello_arm

Code:

root@linaro:/home# file hello_arm 
hello_arm: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped

I wonder these are another reasons for this error?

Once again, thank you for your respond.

bsat · 06-30-2012, 01:11 AM

How did you compile hello_arm ?

dungnguyen · 07-02-2012, 12:00 PM

I have solved my problem. This problem came when I compile file hello_arm.
I use crosstool-ng to build my cross-compiler and it wrong (I don't know why because the result I have is same with tutorial). Then, I use a pre-build crosstool and it run fine.
Thank you all.