When I run evocamd, I get file not found. The file is actually called evocamd_2.17 and when I run from the command prompt in telnet I get the same as you:-
root@dm800 ~ # evocamd_2.17
DEMUX DEVICE: No such file or directory
root@dm800 ~ # evocamd_2.17
DEMUX DEVICE: No such file or directory

Comment