Re: Kernel woes...!

[Enrique Sanchez Vela <enrique_sanchez_vela-at-yahoo.com>]

Patrick,

   why don't you try the BDI on your machine, if rh62 identified all
the hw, probably the latest BDI will do as well. otherwise you are
looking at doing the following.....

   get the linux kernel at least 2.2.18.
   get rtlinux 3.0     
   unpack them.
   follow directions on how to patch the linux kernel (easy)
   compile the newer kernel, (select the right characteristics for EMC
and rtlinux)
   install the newer kernel.
   compile the rtlinux sw.
   get EMC (both emc sw and rcslib) from cvs
   compile both.
   have fun.

 unless you are interested on how to build emc from scratch or you have
something you don't want or can delete from the current installation, I
would suggest giving BDI a try. otherwise, why do you waste time with a
proven combo and don't try rtlinux 3.1 with 2.4.16? or even better yet,
one of the beta kernels and rtai?

 just kidding.
esv.


 --- PKF <pferrick-at-tows.moric.org> wrote:
> 
> This is kind of long, so please bear with me!
> 
> Here's where I am.  After finally hunting down a replacement cdrom
> drive, I've finally got the BDI running on a 120 MHz/16Mb system.  I
> have found that the steppers run quite slowly, and the X interface is
> pretty clunky with the video hardware I have, so I'm thinking about
> installing emc/rtlinux on a 333Mhz/128Mb machine I have that's
> already
> running RedHat 6.2.
> 
> On the RH6.2 machine I'm currently running Linux kernel 2.2.12-20,
> which
> is not one of the versions that Ray's instructions mention.  Not too
> surprisingly, compiling RTL-2.2 anyway and trying to install it did
> not
> get me a working real-time kernel.  It did get me as far as
> generating a
> bzImage, but even though lilo claims to have added it as rtl22 it I
> cannot see or select it at boot time.  The real problem is that I
> have
> only a very vague idea of what I'm doing when it comes to kernels!!  
> It
> still boots with the old kernel, fortunately, so I'm still up and
> running.
> 
> I know what you're thinking: the BDI was invented for you, ya
> bonehead!   That's great, and I'd install BDI on the faster machine
> in a
> second, except that I'd really like to keep using my ethernet card. 
> The
> BDI disk that I have contains a kernel that I don't think has any
> support for my card (not to mention my SCSI disk).
> 
> So the dilemma is:  do I flail away at compiling a kernel that will
> run
> on the faster computer, or do I give up and just go with the BDI
> minus
> the network?  Neither appeals to me very much.  At the moment I'm
> holding out little hope that I can survive another few hours of
> kernel
> mayhem.  On the other hand, if somebody is running the same
> RH6.2/2.2.12-20 that I am and can shed some light, maybe.
> 
> Well, thanks for listening.
> 
> Regards,
> Patrick
> 
> ps - Ray, I do have that X shutdown problem with my disk.  Maybe I'll
> wait and try it again with the newer version?
> 
> 


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