Re: State of devfs in 2.6?

Murray J. Root
2003-12-09T07:13:17Z

On Tue, Dec 09, 2003 at 08:02:19AM +0100, Andreas Jellinghaus wrote:
> On Tue, 2003-12-09 at 00:34, Greg KH wrote:
> > You have 15 floppy devices connected to your box? All floppy devices
> > should show up in /sys/block.
>
> No, 16 devices are normal, sysfs has only one:
> aj@simulacron:~/torrent/j-tv/download$ ls /dev/floppy/
> 0 0u1120 0u1600 0u1722 0u1760 0u1920 0u720 0u820
> 0u1040 0u1440 0u1680 0u1743 0u1840 0u360 0u800 0u830
> aj@simulacron:~/torrent/j-tv/download$ find /sys/block/fd* -name dev
> /sys/block/fd0/dev
>
> Are those floppy devices obsolete? fdformat was the only app to use
> them anyway, I guess. (Not that I use my floppy, I simply noticed
> the change.)
>
> > > I wouldn't call udev deprecated, unless a newer kernel has the
> > > essential devices, too.
> >
> > You mean s/udev/devfs/ right? :)
>
> oops, sorry.
>
> > > and
> > > re-introducing makedev for devices not represented
> > > in sysfs doesn't sound very nice either. So 2.8.* might be a nice time
> > > frame for dropping devfs, or at least give sysfs and udev a few months
> > > to catch up on the issues mentioned.
> >
> > Regardless of the state of udev, devfs has insolvable problems and you
> > should not use it. End of story.
>
> how many bug reports did you see in the last three months of people
> having problems with devfs? I don't doubt the problems in theory, but
> but I simply haven't seen them happening. Most users seem quite happy.
>

Actually, I think most users who have problems just disable devfs. Most of
the people I know have done that. No point in making bug reports about
something that is unmaintained and deprecated.

--
Murray J. Root