ssh pseudo-tty causes PTY allocation request failed on channel 0

Question

Here is my setup: Ubuntu 12.04 server that uses Docker containers for services. Each docker container also runs Ubuntu 12.04. OpenSSH 5.9p1 used everywhere.

When I run this:

ssh root@localhost -p 49167 -i foopy/./ssh/id_rsa

I can log in fine, I just get a simple shell where I can't do much (no full screen apps like vi, etc), I forget what that mode is called.

However, if I want to force pseudo-tty using -t like this:

ssh -t root@localhost -p 49167 -i foopy/./ssh/id_rsa

I get this error and throws me back to the command line:

PTY allocation request failed on channel 0

Any idea why this would be happening and how to fix it?

Answer 1

Has mentionned by @shabbychef, This has been fixed in 0.9.1