Re: [debian-knoppix] Re: devfs
Am Samstag, 12. April 2003 18:39 schrieb Klaus Knopper:
> On Sat, Apr 12, 2003 at 06:14:49PM +0200, Stefan Gybas wrote:
> > Kai Lahmann wrote:
> > >could you give us some numbers?
> >
> > It tooke some time, bit here they are:
> >
> > Kernel on KNOPPIX-2003-04-10 925760 (904k) (*)
> > Same kernel with devfs enabled 939312 (917k)
> > With devfs, 4GB, mathemu removed 916477 (895k)
> >
> > Size on miniroot.gz on KNOPPIX-2004-04-10 476273 (465k)
> > Same miniroot without /dev on new ext2 fs 468769 (458k)
> >
> > So adding devfs to the kernel increases its size by 13 kB, but 22 kB can
> > be gained by disabling Math emulation (CONFIG_MATH_EMULATION). This
> > means that the kernel won't run on 80386 and 80486SX CPUs without math
> > coprocessor any longer (486DX, Pentium and higher are fine).
>
> Ok, Question to the list: Any objections to removing math-emulation (i.e.
> support for plain i386 without coprocessor)? Silence means "no objections".
> ;-)
>
> I have to think about devfs support yet, I'm still not sure if it could
> break some things like hardware or partition detection.
You can forget your way of partition detection then if devfs is enabled and
running. You'll get not hda, hdb, but:
ide/host0/bus0/target0/lun0/disc
ide/host0/bus1/target0/lun0/disc
...
Yeah, one can build scripts to circumvent this, but this has to be done. :-)
We (Kai and I) had several problems with his devfs and partition recognittion.
Any of the devfs-supporters tell me:
I get from /proc/partitions
ide/host0/bus0/target0/lun0/disc
Now I want the model for this disk.
Where in proc can I find this information, unless I remap it back to hda/b ?!
cu
Fabian
>
> Regards
> -Klaus Knopper
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