RE: Kernel woes...!

[dlantz-at-armorholdings.com]

recompiling a kernel can be quite complicated.  i've done it successfully a
few times, and unsuccessfully about 10 times.  if i remember correctly, the
boot image is dumped into '/' and it needs to be in /boot, then you will
need to manually edit /etc/lilo.conf to point to that boot image.. and also
some kind of map... it's been quite a while right now.  i had found a kernel
howto that walks you through MOST of the steps
just remember to keep a boot floppy handy, and when you edit lilo.conf, ADD
the new kernel, DONT delete the old one, so that if it chokes, you will
still be able choose the working kernel at boot.
i rename the old kernel linux.old and name the new one linux.. i think
the machine i experimented on at home (in storage now... sigh....) was
booting four different kernels, 2.2.12, 2.2.12 SMP, 2.4.1, and 2.4.1-SMP
i never ironed out the bugs in them so different things worked in different
kernels (no sound in 2.2.12, qcad wouldnt' work in 2.4.1, etc...)
have you concidered dual booting it with the BDI to see if you can get it to
work?
---Dave
 
> PKF 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?
>