Re: DevFS vs. normal /dev

Matthew Kirkwood (weejock@ferret.lmh.ox.ac.uk)
Tue, 11 Aug 1998 11:42:25 +0100 (GMT)


On Tue, 11 Aug 1998, Richard Gooch wrote:

> > > How do you reference, say, /dev/fd0 if the floppy module isn't even
> > > loaded? You need to do that so kmod loads the module, as things stand
> > > now.
> >
> > This is an issue I raised the other day. Currently, to enable dynamic
> > device loading, you must use the magic tar stuff to create the device
> > in advance with the correct permissions owner, and group. There is
> > a fundamental "chicken and the egg" problem with the auto-creation
> > of device special nodes and use of kmod to auto-load modules.
>
> This isn't correct. If you attempt to do an inode lookup for an inode
> that doesn't exist yet, devfs will send the name of the file to kmod
> which will then load the module.
> All that is required is the right alises in /etc/modules.conf

Ah. So why not fold devfs into autofs, then? (Or vice-versa.)

Matthew.

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