Comments on: PTY allocation request failed on channel 0

By: Drew

Drew — Tue, 24 Jan 2012 18:12:13 +0000

Zerial say:

mount /dev/pts: Can’t found /dev/pts on /etc/fstab or /etc/mstab

Now, I don’t have tty.

1/06/2009Zerial say:

I’ve solved it adding:

none /dev/pts devpts defaults 0 0

into /etc/fstab

thanks
—————–
however im unable to edit the fstab in this mode, im getting this:
[root@alarm ~]# vi /etc/fstab
vi /etc/fstab
[Using open mode]

Open and visual must be used interactively
—–
How might i add this to the fstab as im unable to “mount /dev/pts”

Thanks

Drew

By: Amit

Amit — Fri, 18 Nov 2011 22:00:55 +0000

Hi Yak,
Can you suggest any solution for cygwin/copssh? I couldn’t find any answer for cygwin/copssh.

Thanks,
Amit

By: nackox

nackox — Thu, 17 Nov 2011 12:10:12 +0000

Thanks for the tip. Yesterday I though on creating a new XEN service and the problem came up. Resolved :)

By: Christian

Christian — Sun, 23 Oct 2011 17:20:46 +0000

You rock! Quick and to the point to solve my issue on my OpenFiler box!

By: PTY allocation request failed on channel 0 « exemen 's blog

PTY allocation request failed on channel 0 « exemen 's blog — Thu, 06 Oct 2011 08:58:00 +0000

[...] to your machine(isn’t this supposed to be the original problem ). This will do the trick: view sourceprint? 1.ssh user@host "/bin/bash [...]

By: SandUhrGucker

SandUhrGucker — Sat, 02 Jul 2011 07:49:06 +0000

Thank you much for the time i can save now!

By: Miguelitic

Miguelitic — Thu, 07 Apr 2011 08:41:03 +0000

Thanks!!!, I use dd-wrt on WRT160NL, and I solved the problem:

#ssh user@192.168.x.x “/bin/ash -i”

By: Robert

Robert — Thu, 03 Mar 2011 08:43:34 +0000

Thank you, that saved my day.

By: Namaless

Namaless — Sun, 27 Feb 2011 22:07:50 +0000

Thanks, works all fine for me ^_^

By: emwphov

emwphov — Fri, 21 Jan 2011 10:14:21 +0000

Tanks for solving my problem (clever trick with bash -i). The error message depends on access tool, so I add these for the search robots:
– Putty: “Server refused to allocate pty”
– Tunnelier: “Server does not support xterm terminal”
– Local console: “PTY allocation request failed on channel 0″

Other things to check:
– /etc/fstab should contain /dev/pts
– Have you ran out of pty:s? Check with “who” command and compare to /proc/sys/kernel/pty/max