RES: Boot disc question

["Estevam Viragh Junior" <estevam.viragh@sitelbrasil.com.br>]

Thanks for your time, rabbit!
> Due to space constraints, each floppy has a different, stripped down
> kernel, each with a different set of drivers available.
> You can look at their kernel configurations here:
> http://www.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/conf/
> 
> As you can see, ahc is enabled in RAMDISK (=floppy A), and disabled in
> RAMDISKB (=floppy B). With cac, it's the other way around. That explains
> why they work/don't work depending on which floppy you use.
> When you look at RAMDISK_CD, you'll see that both are enabled, since
> there's more space on a cd so the kernel can be bigger :)
> So if you boot from a cd, they'll both work fine. You can also try to

yeah. I'll try to buy one.

> build you own customized bootfloppy, with a custom kernel (it'll have to
> be small, so better start from one of the default floppies, enable the
> driver you need, and throw out what you don't need to free up space),
> though that's not too easy (I can't tell you exactly how to do it, since
> I would have to do some research myself :-) )

Thanks again! If you get some thing, please let me know.

>  - rabbit
> 
> ----- Original Message -----
> From: "Estevam Viragh Junior" <estevam.viragh@sitelbrasil.com.br>
> To: <misc@openbsd.org>
> Sent: Tuesday, June 18, 2002 8:04 PM
> Subject: Boot disc question
> 
> 
> > Hy list,
> >
> > I'll appreciate some help on the following:
> >
> > SCENARIO:
> >
> > I have a server with a Compaq Array Controler 431 and an Adaptec Host
> > Adapter AHA-2940W.
> >
> > INFO, (from OBSD site):
> >
> > - Adaptec AHA-[23]94x[W] cards and some on-board PCI designs using the
> > AIC7870 and AIC7880 chips. (ahc) (C)
> > - Compaq Smart ARRAY RAID controllers (cac), including: (A) (C)
> > Compaq Smart Array 221, 3100ES, 3200, 4200, 4250ES, 431
> >
> > WHAT'S EXPECTED:
> >
> > If booting with floppyB, it would be able to detect and configure both
> > controlers.
> >
> > WHAT HAPPENED:
> >
> > Bootting with:
> > Floppy A - ahc detected and worked fine; OK
> > cac detected but not configured.
> > (just as expected)
> >
> > Floppy B - ahc detected but not configured;
> > cac detected and worked fine. OK
> > (???)
> >
> > Floppy C - ahc detected but not configured;
> > cac detected but not configured.
> > (just as expected)
> >
> > and:
> > After the instalation, both controles work fine.
> >
> > QUESTIONS:
> >
> > Why ahc didn't work with floppyB ? How to solve that?
> > Is that some kind of UKC config ?
> > What if I try that with a OBSD 3.1 CD ?
> > How to customize a boot disc to make both controlers work?
> >
> > rgds,
> > ESTEVAM VIRAGH JUNIOR
> > estevam.viragh@sitelbrasil.com.br