[Buildroot] How to run an executable file

[Buildroot] How to run an executable file

[Ugroon} Hackerone]

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Hi,

I have an executable file and when I try to run it with "chmod +x file" and
"./file" I'm getting command not found: ./file error. So I just want to
learn how to execute this file?

Note: The output of "file file" is Elf x64

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Re: [Buildroot] How to run an executable file

[Baruch Siach via buildroot]

Hi Ugroon,

On Fri, May 20 2022, Ugroon} Hackerone wrote:
> I have an executable file and when I try to run it with "chmod +x
> file" and "./file" I'm getting command not found: ./file error. So I
> just want to learn how to execute this file?
>
> Note: The output of "file file" is Elf x64

The most common reason for "not found" error on running an executable is
that one or more of needed shared library is missing. The command

  readelf -d file

will list the needed libraries, as well as more information on the
dynamic section of the ELF executable. Make sure you have all listed
shared libraries.

baruch

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Re: [Buildroot] How to run an executable file

[David Laight]

From: Baruch Siach
> Sent: 20 May 2022 06:25
> 
> On Fri, May 20 2022, Ugroon} Hackerone wrote:
> > I have an executable file and when I try to run it with "chmod +x
> > file" and "./file" I'm getting command not found: ./file error. So I
> > just want to learn how to execute this file?
> >
> > Note: The output of "file file" is Elf x64
> 
> The most common reason for "not found" error on running an executable is
> that one or more of needed shared library is missing. The command
> 
>   readelf -d file
> 
> will list the needed libraries, as well as more information on the
> dynamic section of the ELF executable. Make sure you have all listed
> shared libraries.

You can also be missing the required 'elf interpreter'.

	David

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