Not sure what the ./ is supposed to mean, I guess I should research that, but it's a requirement for Linux. Glad your working now. However it's still a mystery where that old version of CGMiner came from.
well ./cgminer means start cgminer in current directory.
../cgminer means one directory up.
/cgminer means start cgminer in available path variable, but this linux is an clean install.
I don't know where version 4.9.2 comes from then.
yes it is running in windows - really cannot justify a whole new pc or even a pi just for running this one miner. and the usb is directly to a usb 3.0 on my pc.
Did you try an usb 2.0 port? on my pc's its more stable than usb 3.x ports
BTW i switched to linux from win10, man this is stable. Can advise any1 to do the same.