Re: RTAI Installation on CentOS6

Hi Emmanuel,

   I did execute 'make modules_install' first, before 'make install'.

   I repeated the compilation starting with a copy of the installation
.config, omitting the 'make localmodconfig'.  Now the compilation takes
longer, and the install still issues the missing module errors, but in the
end the new kernel boots successfully and the USB keyboard works.  So,
localmodconfig appears to be missing a required USB driver.

   I'm reluctant to use the old RTAI 3.9, so I tried repeating the
installation on a RedHat 7.2 system with kernel 3.10.32 and
rtai-5.0-test1.  Even with a full .config (no make localmodconfig), the
boot hangs.  Are any specific instructions available for how to configure
this kernel and rtai combination?

   Thank you again for your help.

Cheers,
Tom Hayward


On Thu, Oct 20, 2016 at 4:48 AM, Emmanuel Pacaud <
[email protected]> wrote:

> Hi,
>
> Le mer. 19 oct. 2016 à 19:27, Thomas Hayward <[email protected]> a
> écrit :
>
>>    Thank you for the advice.  I downloaded v.2.6.32.20 and applied the
>> corresponding patches from rtai.3.9.2.  I ran 'make localmodconfig' to
>> generate the .config file.  The kernel compiles but 'make install' issues
>> the following errors:
>>
>> sbfvib-lp2:thayward [/usr/src/kernels/linux-2.6.32.20-rtai]> sudo make
>> install
>> sh /usr/src/kernels/linux-2.6.32.20-rtai/arch/x86/boot/install.sh
>> 2.6.32.20-rtai-x86_64 arch/x86/boot/bzImage \
>>                 System.map "/boot"
>> ERROR: modinfo: could not find module mperf
>> ERROR: modinfo: could not find module rtsx_pci_sdmmc
>> ERROR: modinfo: could not find module rtsx_pci_ms
>> ERROR: modinfo: could not find module iwlmvm
>> ERROR: modinfo: could not find module rtsx_pci
>> ERROR: modinfo: could not find module iwlwifi
>> ERROR: modinfo: could not find module snd_hda_codec_hdmi
>> ERROR: modinfo: could not find module lpc_ich
>> ERROR: modinfo: could not find module snd_hda_codec_generic
>> ERROR: modinfo: could not find module xhci_hcd
>> ERROR: modinfo: could not find module i915
>>
>
> Did you execute 'make modules_install' before ?
>
> After searching for a couple hours, I understand that the missing modules
>> and keyboard problem are related to the kernel installation, and are not
>> rtai-specific.  I compiled a non-rtai version of the kernel that has the
>> same problems.  However, I have not been able to find exactly how to fix
>> the problems.  Is there a specific package I can install in CentOS6 using
>> yum to supply the missing modules?
>>
>
> No. Modules must be compiled with the same configuration as the kernel.
>
>
> Cheers,
>
>         Emmanuel.
>
>


-- 
Thomas Hayward
Gemini South Observatory
La Serena, Chile
+56-51-2-205-619

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