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On Thu, Dec 15, 2005 at 02:59:56AM +0100, Hubert Feyrer wrote:
> On Thu, 15 Dec 2005, Reinoud Zandijk wrote:
> >providing a default label with commonly used filingsystems on it?
> 
> Why would a disk device driver (which should only care for blocks, as far 
> as I understand) be interested in a filesystem structure?

Normally nothing i agree! but they do have to deal with disklabel stuff in 
the current design. And as such if no disklabel is recorded create a 
`dummy' disklabel. If creating a disklabel why not make use of knowledge? 
Say the acorn diskdriver trying to create `filecore' entries for floppies 
since it knows its most likely to have them next to msdosfs ?

Or a CD driver that provides an ISO9660 and an UDF mountpoint (without 
peeking into the disc for fs recognition structures)? Would help the user a 
lot. The default label provided with a `unused' RAW partition and a 4.2BSD 
cd0a isn't helping much.

An other approach could be to change mbr's readdisclabel to copy the 
provided disklabel but then it assumes that its allways given a whole and 
valid disklabel in the start wich might not be true too and has to checked 
as well for each call...

Reinoud


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