Re: Whats happened to my psuedo ttys
On Tuesday 17 April 2007 22:13, Greg Folkert wrote:
> On Tue, 2007-04-17 at 21:48 +0100, Alan Chandler wrote:
> > On Tuesday 17 April 2007 14:07, Greg Folkert wrote:
> > > On Tue, 2007-04-17 at 07:12 +0100, Alan Chandler wrote:
> > > > On Monday 16 April 2007 22:29, Alan Chandler wrote:
> > > > > I've just upgraded my Debian Sid system, and now when I try
> > > > > and start konsole (in KDE) it fails saying it is unable to
> > > > > open a PTY.
> > > > >
> > > > > Is this a udev problem or something else?
> > > >
> > > > I presume by the deafening silence that this isn't a problem
> > > > that is hitting everyone else out there.
> > > >
> > > > Can someone at least tell me which init script is supposed to
> > > > set up the psuedo ttys so I can try and figure out why it isn't
> > > > happening.
> > >
> > > It isn't an init script. udev dynamically creates these.
> > >
> > > As I open new consoles in XFce, I find that with one terminal
> > > open, I get one device in /dev/pts/. If I open 2, I have two
> > > devices in /dev/pts/.
> > >
> > > If I open 30 terminals, I get 30 devices. I just tried it.
> > >
> > > I actually looked for evidence that it is a udev problem or a
> > > konsole problem. I installed konsole, had zero problems, I got
> > > nothing for you on this one. I used gnome-terminal, same thing.
> > > xterm, same thing.
> > >
> > > konsole v3.5.5a.dfsg.1-6
> > > xterm v225-1
> > > gnome-terminal v2.18.0-1
> > > udev v0.105-4
> > > hal v0.5.8.1-9
> > > linux-image linux-image-2.6.20-1-k7 v2.6.20-2~snapshot.8442
> > >
> > > In /etc/udev/permissions.rules I have this:
> > >
> > > KERNEL=="pty*", MODE="0666", GROUP="tty"
> > >
> > > In /etc/udev/run.rules
> > >
> > > KERNEL=="pty*", OPTIONS+="last_rule"
> > >
> > > I'd have to think that would be all that is needed.
> >
> > I have just those rules. But what devices does it create in /dev?
> > I have /dev/ptmx and a directory /dev/pts (with nothing in it).
> > The directory is owned by root.root with access rights 755. This
> > maybe the problem - can you tell me what yours are.
>
> ls -l /dev/ptmx
> crw-rw-rw- 1 root root 5, 2 2007-04-17 16:51 /dev/ptmx
>
> ls -ld /dev/pts
> drwxr-xr-x 2 root root 0 2007-04-13 08:39 /dev/pts
Got those
>
> ls -l /dev/pts/1
> crw--w---- 1 greg tty 136, 1 2007-04-17 16:57 /dev/pts/1
Not this
>
>
> Which are historically correct and correct for nowadays, since "root"
> creates the files in there and chowns them once created.
>
> > > Two last questions, is udev working(running?) and what kernel are
> > > you using?
> >
> > udev is running
> > kernel is 2.6.20
>
> use synaptic to find out the actual version of the source, I am
> betting the 2.6.20-1 and also the version of udev.
snaptic not installed - can't do it right now because of other problems
>
> > (I would normally go to a console and do a uname -r for you - but I
> > am hobbled because I can only get to a console with CTL-ALT-F1, but
> > then I can only get back if I restart kdm - because a bug in the
> > i810 driver locks my machine solid if I try to come back via
> > CTL-ALT-F7).
>
> No big deal.
>
> Konsole needs to have "kgrantpty" this way as far as the triplets are
> concerned (chmod 4755):
>
> ls -l /usr/bin/kgrantpty
> -rwsr-xr-x 1 root root 5824 2007-02-07 15:54 /usr/bin/kgrantpty
Got this too - with these permissions
>
> But this may not apply.
--
Alan Chandler
http://www.chandlerfamily.org.uk
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