devfs and bootscripts...

Sergey Ostrovsky sostrovsky at snip.net
Fri Oct 5 02:14:40 PDT 2001


On Fri, Oct 05, 2001 at 11:46:59AM +0200, Fabio Fracassi wrote:
> On Friday 05 October 2001 00:23, Sergey Ostrovsky wrote:
> > On Thu, Oct 04, 2001 at 05:35:45PM +0100, Mark Ellis wrote:
> > > The other use for devfsd is with kernel modules that provide a dev entry.
> > > When dev is probed for a nonexistent entry, devfsd kicks off modprobe,
> > > module gets loaded (if it exists) and pops up a device node. This is the
> > > only reason I still run devfsd.
> > >
> > > Mark
> >
> > Bad news for you ... You should stop using devfsd immediately - kmod starts
> > modprobe and loaded device itself registers device nodes ...
> > Sorry.
> >
> > Sergey
> 
> Yes, but kmod doesn't work with devfs, because kmod needs access to one of 
> the /dev special files, which don't jet exist. The devfs then creates them, 
> without a driver attached, and kmod creates the driver, without a /dev file 
> attached (and will probably discard it upon failure)
> 
> devfsd takes care of first creating the /dev file and then calling modprobe.
> 
> I hope that this part will someday be packed into kernelspace, and devfsd 
> gets deprecated.
> 
> Fabio
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Your right indeed ...

Sergey.
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