Hi!
I need to know (in a script shell for instance) if a running kernel
is compiled with/without module support. I don't have access to the
source tree when detecting (though I have it mounted sometime later).
Reading the source (fs/proc/proc_misc.c), I understand that the file
/proc/modules exists only when modules are supported by the running
kernel. Is that true? If so, can I assume that the following script
is correct?
-=-=-=-
#!/bin/bash
[ -e /proc/modules ] && echo Modules supported by running kernel. \
|| echo Modules not supported by running kernel.
-=-=-=-
If not, how may I detect module support?
(Yes, I could build two kernels supporting modules vs not supporting
modules, but my machine is quite slow : 2h per compilation :-( ).
Thanks for any reply.
Regards,
Yann E. MORIN.
--
.---------------------------.----------------------.------------------.
| Yann E. MORIN | Real-Time Embedded | ASCII RIBBON /"\ |
| phone: (33) 662 376 056 | Software Designer | CAMPAIGN \ / |
| http://ymorin.free.fr ?----------------------: AGAINST X |
| [email protected] | HTML MAIL / \ |
?--------------------------------------------------?------------------?
On Thu, 17 Jan 2002, Yann E. MORIN wrote:
> Hi!
>
> I need to know (in a script shell for instance) if a running kernel
> is compiled with/without module support. I don't have access to the
> source tree when detecting (though I have it mounted sometime later).
>
> Reading the source (fs/proc/proc_misc.c), I understand that the file
> /proc/modules exists only when modules are supported by the running
> kernel. Is that true? If so, can I assume that the following script
> is correct?
>
> -=-=-=-
> #!/bin/bash
> [ -e /proc/modules ] && echo Modules supported by running kernel. \
> || echo Modules not supported by running kernel.
> -=-=-=-
>
> If not, how may I detect module support?
>
> (Yes, I could build two kernels supporting modules vs not supporting
> modules, but my machine is quite slow : 2h per compilation :-( ).
>
> Thanks for any reply.
>
> Regards,
> Yann E. MORIN.
>
You could also use `lsmod`. It uses query_module() which will return
some error code if modules are not supported.
if lsmod >/dev/null ; then
echo "Modules are supported"
else
echo "Modules not supported"
fi
Cheers,
Dick Johnson
Penguin : Linux version 2.4.1 on an i686 machine (797.90 BogoMips).
I was going to compile a list of innovations that could be
attributed to Microsoft. Once I realized that Ctrl-Alt-Del
was handled in the BIOS, I found that there aren't any.