On 5/15/2011 7:25 PM, Devel wrote:
> Hello,
>
> I am trying to install EMC on fedora, but not seems easy.
>
> First at all seems that kernel is already realtime:
> https://rt.wiki.kernel.org/index.php/Main_Page
>
> But EMC requires RTAI. When I try to install RTAI lib patches are too
> old for fedora 14 (2.6.35.13-91.fc14.x86_64). No way at this point.
>
> It posible to install in fedora 14? Any way?
>
> Thanks in advance.
>
Devel:
[ Please accept the following as a gentle tease:-) ]
Your question reminds me of the old joke---
Patient says: Doctor, Doctor, it hurts when I do this.
Doctor replies: So stop doing this.
[/tease]
Seriously, why do you need to install EMC2 on fedora 14? The EMC
developers have gone to a lot of trouble creating a distribution that
runs without any pain on Ubuntu 8 and Ubuntu 10. This includes using
Linux kernels that match the available RTAI patches. Why not take
advantage of their hard work and avoid hard work of your own? Disk
storage is cheap; you can always create a dual-boot host if needed.
If you absolutely must, then first you have to roll back the kernel to
the latest for which RTAI patches exist or join the RTAI team to develop
patches for the version you have.
As for PREEMPT_RT, I have no idea whether it gives acceptable real-time
performance, has an acceptable API, or is easy/hard to connect to EMC2
code. Perhaps some of the core developers can comment.
Regards,
Kent
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