"Must be connected to a terminal error" with screen -x command on a Linux Container

linux containers gnu-screen proxmox
Phoax picture Phoax · Sep 13, 2016 · Viewed 22.6k times · Source

I am using Linux containers with Proxmox 4. When I am connected on an Ubuntu 16.04 container with:

pct enter <id>

I run a script with screen and try to watch the process running with:

screen -x <processname>

I got the error:

Must be connected to a terminal error

When I connect with:

ssh -t <user>@<container_ip>

It works, I can attach the display to the screen.

How can I use screen -x when I am connected with pct enter ?

Answer

Guik picture Guik · May 29, 2017

I found a solution that works for same case(https://www.svennd.be/screen-in-lxc-attach)

Execute this

script /dev/null

Then you can run screen, et voila

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