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I can reproduce this with this Dockerfile: FROM centos:latest RUN yum -y install screen && rm -rf /var/cache/yum CMD screen -S session1 sleep 99999 when I run it with docker run <imageID> I get Must be connected to a terminal. Screen needs a terminal (tty) to function. The solution is to add -tid to the run flags, from the help: -d, --...


Does your user account eric have the permission to use /dev/ttyUSB0? To find out, please run ls -l /dev/ttyUSB0. The output might look like this: $ ls -l /dev/ttyUSB0 crw-rw----+ 1 root dialout 166, 0 Jul 9 08:55 /dev/ttyUSB0 The characters at the left-most column are the file type and permissions information: The first character is c, indicating a ...


I can't help with your PCMCIA issue, but I use Gnuscreen every day with cheap $0.90 USB/3.3 volt serial dongles under FreeBSD or Linux. The main issue is that your OS has a driver for them. I find USB/serial dongles with the CP2102 and PL2303 chipsets work perfectly and recommend ones which have RTS, CTS, DTR, etc., available apart from the usual RX, Tx, 3....


Note: RemoteCommand starts working with OpenSSH 7.6. In earlier version (ie current debian 9.9) the ssh client will stop working properly (at least with git pull).

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