Re: RTAI Installation on CentOS6

Il 31/10/2016 16:41, Thomas Hayward ha scritto:

> Hello Giuliano,
>
> Thank you; that is essentially what I have been trying.   I have 
> switched to a RedHat Enterprise Linux 7.2 system, to start with a 3.x 
> kernel, and I can compile a vanilla kernel successfully.  However, 
> when I patch and configure the kernel according to the 
> RTAI-recommended defaults, the kernel hangs when booting.  Evidently 
> the RTAI-default is missing something in the 'General' level that is 
> required on my system.  I'm steadily narrowing it down by 
> trial-and-error but I wish I had more clear directions about what to do.
>
> I am also having problems running configure and make in RTAI itself.  
> I see a couple of error messages that are not explained in the directions.
>
> May I please ask what is currently the best source for RTAI?.  I've 
> tried the 5.0-test1 release from the RTAI web page, the distribution 
> from github/ShabbyX, and "vulcano" from the CVS server.  It is not 
> clear what is best, and where the best support is available.
>
> Thank you again for your advice, very much appreciated.
>
> Best regards,
> Tom Hayward
>
I'm not using any more the RTAI patch, because, for my needs, the kernel 
RT_PREEMPT <https://rt.wiki.kernel.org/index.php/RT_PREEMPT_HOWTO> 
patch  provides the required performance, and makes my life much easier, 
also because some distro's such as Ubuntu, Redhat/CentOs and others do 
provide as an alternative to standard kernel, also an RT_PREEMPT patched 
one, which takes into account all what's required by the specific 
distribution details.
Therefore I can't help you too much on picking up the best source.
However, when I used to, I always avoided the most recent releases, 
sticking to the older, better tested ones. I used to start with the 
distribution configuration, then applied the minimal changes required, 
and it used to work.
Hopefully someone else in this list may give you more appropriate advice.

Kind regards,

Giuliano

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