On Fri, 5 Dec 2003 10:30, DG wrote:
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] Behalf Of Jez Hancock
> > Sent: Friday, 5 December 2003 10:46 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Out of pty's
> >
> > On Thu, Dec 04, 2003 at 03:25:54PM -0800, Justin Burke wrote:
> > > /etc/ttys lists a ton of pseudo terminals, which is great. However,
> > > after opening up 32 pseudo terminals (/dev/ptyp[0-9] and
> > > /dev/ptyp[a-v]]), none of the other terminals are used (eg.
> >
> > /dev/ptyq*).
> >
> > > How do I get the system to start using those devices?
> >
> > Sorry to hear that - I've never gotten that many ttys used up :P I
> > could try it now I suppose with screen...
> >
> > Mmm I see what you mean, I get up to ttypv as well and then
> > it complains
> > no more ttys :(
> >
> > Sorry I'm not sure about that then... anyone else know?
> >
> > --
> > Jez Hancock
> > - System Administrator / PHP Developer
>
> This is covered in the FAQ:
>
> 10.19. How do I add pseudoterminals to the system?
>
> If you have lots of telnet, ssh, X, or screen users, you will probably
> run
> out of pseudoterminals. Here is how to add more:
>
> 1. Build and install a new kernel with the line
>
> pseudo-device pty 256
>
> in the configuration file.
>
> 2. Run the commands
>
I believe this may be out of date. I think the kernel may now
produce 256 by default -- I'm on 4.7-STABLE and more than 32 exist for me.
> # cd /dev
> # sh MAKEDEV pty{1,2,3,4,5,6,7}
>
> to make 256 device nodes for the new terminals.
>
On 4.x certainly need this to create more devices. I don't know if you need to
do something with devfs in 5.x, but 5.x doesn't have MAKEDEV.
> 3. Edit /etc/ttys and add lines for each of the 256 terminals. They
> should match the form of the existing entries, i.e. they look like
>
> ttyqc none network
>
> The order of the letter designations is tty[pqrsPQRS][0-9a-v], using
> a
> regular expression.
I found these already in my default ttys
>
> 4. Reboot the system with the new kernel and you are ready to go.
>
> Dave
Malcolm
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