Re: [Xenomai] Installing Xenomai Newbie

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

On 10/19/2012 04:29 PM, Sebastian Pavez wrote:
> 2012/10/19 Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
> 
>> On 10/19/2012 03:54 PM, Sebastian Pavez wrote:
>>> 2012/10/19 Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
>>>
>>>> On 10/19/2012 02:24 AM, Sebastián Pavez wrote:
>>>>
>>>>> El 18-10-2012 1:28, Gilles Chanteperdrix escribió:
>>>>>> On 10/18/2012 02:40 AM, Sebastián Pavez wrote:
>>>>>>
>>>>>>> El 16-10-2012 22:11, Gilles Chanteperdrix escribió:
>>>>>>>> On 10/16/2012 05:15 PM, Sebastián Pavez wrote:
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> My name is Sebastian and I'm a chilean student from PUCV.
>> Currently I
>>>>>>>>> have to develop a RT proyect, but the problem is that I dont have
>>>>>>>>> experience with Linux and a lot less with Xenomai. Nevertheless i
>>>>>>>>> arrived to install xenomai  2.6.0 on Ubuntu 12.04, but when I try
>> to
>>>>>>>>> execute ubuntu with the xenomai kernel the screen goes black
>>>>>>>> Please remove "quiet" from Linux command line, and make sure that
>> you
>>>>>>>> have all the drivers necessary for the your system to boot,
>> including:
>>>>>>>> - video display driver
>>>>>>>> - root file system device driver
>>>>>>>> - root file system driver
>>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I tried to everything from scratch, but i get the same problem. I
>> tried
>>>>>>> remove the quiet splash and I could see the line
>>>>>>> "Fallback graphics default" well, this is when I execute the kernel
>>>> with
>>>>>>> xenomai in recovery mode. Because when I tried it in
>>>>>>> a normal way I get the blacl screen with a twinkle, in this case I'm
>>>>>>> able to put my password and I heard the entry sound (with some
>>>>>>> distorsion), so like you said it maybe some driver's problem.
>>>>>>> In the recovery mode I checked the application drivers and nothing.
>>>>>>> Maybe it's something simple but I'm quite stuck, I've never used
>> linux
>>>>>>> before and I really need to get this operative, so if you or someone
>>>>>>> else could help me ... in plain language would be awesome ...
>>>>>>> Thanks in advance
>>>>>>>
>>>>>>> PS: In the recovery mode I tried the xenomai tests, I attached the
>>>>>>> captures ...
>>>>>>
>>>>>> Your problem is configuring the kernel. So, please start with the
>> Ubuntu
>>>>>> kernel configuration, and simply disable the problematic options
>>>>>> described here:
>>>>>> http://www.xenomai.org/index.php/Configuring_x86_kernels
>>>>>>
>>>>>> If you do not know how to configure and compile a kernel, I suggest
>> you
>>>>>> read some documentation on the web, such as:
>>>>>> http://kernelnewbies.org/KernelBuild
>>>>>>
>>>>> Thanks Gilles for your answers and time.
>>>>>
>>>>> I tried one more time from scratch. I used Xenomai 2.6.0 and the kernel
>>>>> Linux 2.6.38.8.
>>>>> The only changes I made in the configuration are the suggested in the
>>>>> page you send me (_CPU_FREQ, _APM, _ACPI_PROCESSOR _INTEL_IDLE,
>>>>> _PCI_MSI), I also disable _CC_STACKPROTECTOR and in the Preemption
>> Model
>>>>> i choose "Preemptible Kernel (Low-Latency Desktop)". I have a i3
>>>>> processor so I choose the Core 2/newer Xeon's Processor family.
>>>>
>>>>
>>>> You forgot to disable KGDB.
>>>>
>>>>>
>>>>> I got the same result (black screen with the sistem apparently working
>>>>> behind like I said), I realise that I didn't follow the recomendations
>>>>> mentioned in this page http://kernelnewbies.org/KernelBuild, because I
>>>>> tried to follow this tutorial
>>>>>
>>>>
>> http://www.blaess.fr/christophe/2011/12/28/xenomai-2-6-0-sur-ubuntu-11-10/
>>>>> . So tomorrow I will try to do this on my own with newer versions of
>> the
>>>>> kernel and probably with xenomai 2.6.1.
>>>>>
>>>>> Before that I would like to know if the configuration parameters I
>>>>> choose are ok, I don't know how to get a list of all of the parameters
>>>>> to put it here but the only changes I made are the ones listed above. I
>>>>> have doubts with Preemptible Kernel option because it wasn't listed on
>>>>> the page, so I really don't know what is the cause. If it's not a
>>>>> configuration issue, could be other causes to my problem?? ... I hope
>>>>> not, because at least it's delimited.
>>>>
>>>>
>>>> Well, simply attach the .config file...
>>>>
>>>> --
>>>>                                                                 Gilles.
>>>>
>>>>
>>> Well, I did it again disabling the KGDB and the results are the same.
>>> I attach the .config file like you suggested.
>>> Thanks again
>>
>> Does the same configuration work with CONFIG_XENOMAI and CONFIG_IPIPE
>> disabled?
>>
>> --
>>                                             Gilles.
>>
> 
> Thank you for your quick answer.
> I disabled those options and I got an error. I attach the capture of that.
> 

Ok, try compiling the kernel without running prepare-kernel.sh, but
still with the same configuration.

-- 
					    Gilles.