On Fri, Nov 17, 2006 at 11:18:04PM -0500, Alan Stern wrote:
> On Sat, 18 Nov 2006, Oleg Verych wrote:
> 
> > On Fri, Nov 17, 2006 at 10:22:58AM -0500, Alan Stern wrote:
> > > Those email addresse in unusual_devs.h are _not_ credits.  (The credit 
> > > belongs to the person who writes and submits the patch, not the person 
> > > who owns the hardware and reports the problem.)
> > 
> > I think, "code generated from documentation" rule, can be applied here.
> > CS theory, but i'm not a CS specialist ;-E
> 
> Sorry, I'm not familiar with that rule.

The Best program is, where sources are generated from the documentation.
(Can't remember ref., but it's an idealistic and _right_ thing, IMHO ;)

> > > > I wish some day all this static useless id-ification will went to
> > > > userspace.
> > > 
> > > I do too.  But there are difficulties with doing it.  Just as one example,
> > > consider trying to boot from a USB pendrive.  At that point there _is_ no
> > > userspace available to provide the blacklist entries!
> > 
> > Do you mean usb flash drives?
> 
> Yes.  Or USB hard disk drives.
> 
> > So, if yes. BIOS knows how to boot from it, right?
> 
> Wrong.  The BIOS knows how to load the kernel, but it knows nothing about 
> the rest of the boot procedure.

Ok, lets move from BIOS to bootloader, then, external or in-bzImabe.

BIOS loads bootloader sector (whatever it is), then bootloader loads
all stuff: kernel image, initrd (optional), and

> > Kernel isn't for
> > itself, right?
> 
> I don't understand this question.

here i mean, that kernel without userspace is just "a panic":
"can't mount rootfs" or "killing init" one.
(I don't know how to explain it more clear)

> > Thus, i think before (any) rootfs image is ready, use
> > BIOS. If one is ready use userspace.
> 
> The kernel cannot use the BIOS; it has to use its own drivers.  Reason: As
> soon as the kernel probes the PCI bus, it takes the USB host controllers
> away from the BIOS.

Sure, but i mean BIOS->bootloader->early-userspace, not kernel here.
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