CMDTUX_CAT Fatal error encountered If you get the error: CMDTUX_CAT:827: ERROR: Fatal error encountered; initiating user error handler It indicates that the IPC resource settings are not sufficient. This involves modifying the system control settings under /etc/sysctl.conf in particular things like the following (although there might be others and this is just an example): sysctl.conf kernel.sem 250 32000 100 128 kernel.msgmni = 8192 kernel.msgmax = 1048576 kernel.msgmnb = 1048576 This needs to be changed as the root user and reloaded using sysctl -p.