overwrite complete flash

[Markus Borchers]

On Tue, 13 Jan 2004 16:00:21 +0000, David Woodhouse <dwmw2 at infradead.org> 
wrote:

> On Tue, 2004-01-13 at 16:47 +0100, Jörn Engel wrote:
>> > I miss a device-file (like /dev/hda) to have access independent of any
>> > partitions.
>>
>> Should be just like /dev/hda - look for the device with minor number 0
>> or create it, if you don't have it.
>
> That's not normally the case. It's _possible_ for the map driver to
> register the whole device first, and then the partitions -- but most
> don't.
>

/dev/mtdblock0 (minor 0) is partition 0 (RedBoot).
If it _is_ possible to register the whole device first, what do I have to 
do?