Re: IDE on linux-2.4.18 (fwd)

Re: IDE on linux-2.4.18 (fwd)

[Andrzej Krzysztofowicz]

> 
> I tried to install Linux-2.4.18 on a machine with IDE drives.
> The machine ran fine with Linux-2.4.1. It won't mount the
> root file-system because:
> 
> hda:	Cannot handle device with more than 16 heads giving up.
> 
> That's a real nice help. The device has 1024 cylinders, 255 heads
> and 63 sectors. This is 6,422 MB. An attempt to set 16 heads in
> the BIOS will allow access to only 528 MB, which is wrong.

Old hd.o driver supports:
- 1 IDE channel
- only CHS mode (no LBA)

It can address disk up to 8 GB, but a kernel parameter hd=... is required
if in is > 512 MB
It can boot from 512 MB area at the disk beginning, i.e. the area that can
be addressed by BIOS in this mode. 
( /boot should be located there if using lilo )

> So what is the magic incantation necessary to get the IDE
> subsystem to work like it used to?

Are you sure you need / want to use the old (ancient) driver ?

-- 
=======================================================================
  Andrzej M. Krzysztofowicz               ankry@mif.pg.gda.pl
  phone (48)(58) 347 14 61
Faculty of Applied Phys. & Math.,   Technical University of Gdansk

Re: IDE on linux-2.4.18 (fwd)

[Andrzej Krzysztofowicz]

> On Mon, 11 Mar 2002, Alan Cox wrote:
> 
> > > hda: 20044080 sectors (10263 MB) w/418KiB Cache, CHS=1024/255/63, UDMA(33)
> > > Partition check:
> > >  hda: hda1 hda2 < hda5 hda6 >
> > > hd: unable to get major 3 for hard disk
> > 
> > ^^^^^^^^^^^^^^^^^^
> > 
> > Case dismissed ;)
> 
> I haven't a clue what you are saying. Every IDE option that is allowed
> is enabled in .config. The IDE drive(s) are found, but you imply, no
> state, that I did something wrong. You state that I haven't enabled
> something? I enabled everything that 'make config` allowed me to
> enable. Now what is it?

You are lucky that your IDE disk works. It should not as you choosed to use
"Old driver on the first channel". 

RTFM.

-- 
=======================================================================
  Andrzej M. Krzysztofowicz               ankry@mif.pg.gda.pl
  phone (48)(58) 347 14 61
Faculty of Applied Phys. & Math.,   Technical University of Gdansk