Drivers / Modules help

[Rick Stevens]

Rick Stevens wrote:
> Patrick Johnson wrote:
> 
>> Rick,
>>
>> Thank you so much for responding back.
>>
>> I looked under the /lib/modules/2.4.21-20.EL/kernel/drivers directory as
>> you said and I don't see the bttv module or the media directory
>> anywhere.
> 
> 
> The directory is:
> 
>     /lib/modules/2.4.21-20-EL/kernel/drivers/media/video
> 
> If you want to search the whole tree, try:
> 
>     cd /lib/modules/`uname -r`
>     find . -name "bttv.o" -print
> 
> and the system will show you the subdirectory where the module is
> located--if it is indeed installed.
> 
>> I ran "lsmod" and didn't see the bttv module listed.  I don't understand
>> why it is in the source directory but nowhere else to be found.
>> Also, I am running all this as root just to eliminate any permissions.
>>
>> I again tried "modprobe bttv" as root and again it returned "modeprobe:
>> can't locate module bttv"
>>
>> Was the kernel (2.4.21-20.EL) possibly built with out the module on my
>> system?  I'm guessing this maybe the case because I can find it in the
>> src directory but not in the lib/module directory.
> 
> 
> I suppose it's possible.  I don't have an EL machine here, but I just
> checked an ES machine and you're right!  None of the media drivers have
> been built!  Weird!
> 
> Well, if you want to build them, as root:
> 
>     # cd /usr/src/linux-2.4
>     # make distclean

DOH!  No!  That's "make mrproper", NOT "make distclean"!  Sorry about
that!

>     # cp /boot/config-`uname -r` .config  (yes, that's "dot-config")
>     # make xconfig
> 
> This will bring up your kernel configurator.  Click on the "Multimedia"
> button and make sure the "M" radio button is colored in at the top (this
> says that stuff will be built as modules).  If that's set, click on
> "Main Menu", then "Save and exit".
> 
> Next, edit the "Makefile" file and change the "EXTRAVERSION=" value to 
> match what your kernel is.  In your case, you probably just need to 
> remove the "custom" bit.  It will probably initially look like:
> 
>     EXTRAVERSION = -20-ELcustom
> 
> You probably want it to read:
> 
>     EXTRAVERSION = -20-EL
> 
> Finally, do these commands:
> 
>     # make dep
>     # make bzImage
>     # make modules
> 
> The second and third commands will take quite a while to complete.  The
> second one builds a new kernel, the third builds the modules.  You can
> then either copy the appropriate modules to the /lib/modules/whatever
> spot or you can "make module_install" to install all new modules.
> 
> Keep in mind that kernel building is NOT a trivial task.  If you're
> not comfortable with it, don't do it.  However, the only way to learn
> is to try it.  Just make sure you have a boot disk so you can recover
> the system if you do it wrong.  I have a document you can look at that
> may help:
> 
>     http://www.rhil.net/docs/kernelbuild.html
> 
> Frankly, I'm a bit shocked that EL doesn't have these modules already
> built.
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -           Denial.  It ain't just a river in Egypt anymore!         -
> ----------------------------------------------------------------------
> 
> _______________________________________________
> Redhat-install-list mailing list
> Redhat-install-list at redhat.com
> https://www.redhat.com/mailman/listinfo/redhat-install-list
> To Unsubscribe Go To ABOVE URL or send a message to:
> redhat-install-list-request at redhat.com
> Subject: unsubscribe
> 


-- 
----------------------------------------------------------------------
- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
- Treat each day as if it's your last...a lot of crying and whining  -
-      usually gets you what you want!              -- Sam Sledge    -
----------------------------------------------------------------------