[mike26]

Running on Ubuntu 18.04.1. According to earlier posts, this should work but seems to be broken in the latest release. Can anyone confirm this is correct?

$ /opt/calibre/calibre-server --version
calibre-server (calibre 3.38.1)

~$ /opt/calibre/calibre-server --port 8080 /home/<user>/Calibre/IT &
[1] 28502
~$ calibre server listening on 0.0.0.0:8080

~$ OPDS feeds advertised via BonJour at: 192.168.0.110 port: 8080

~$

~$ ps -ef | grep calibre
<user> 28502 24402 0 10:31 pts/0 00:00:01 /opt/calibre/bin/calibre-server --port 8080 /home/sergiu/Calibre/IT
<user> 28569 24402 0 10:36 pts/0 00:00:00 grep --color=auto calibre

~$

~$ /opt/calibre/calibre-server --port 8081 /home/<user>/Calibre/Literature/ &
[2] 28522
~$ Another calibre program such as another instance of calibre-server or the main calibre program is running. Having multiple programs that can make changes to a calibre library running at the same time is not supported.

[2]+ Exit 1