found solution :
cd ~/git/vthoang/cgminer/
sudo usermod -G plugdev -a `whoami`
sudo cp 01-cgminer.rules /etc/udev/rules.d/
sudo reboot
from here :
https://www.eyeboot.com/download/GekkoScience_2PAC_BM1384_USB_Stick_Miner/2PAC_BM1384_USB_Setup_Guide.pdfits written badly , so you have to tweek as all joined
it is a real shame that both bitcoin forum and bitshopper.de have inadequate instructions on both 2pac and moonlander 2. have had to find other ways to set up. sloppy work by the big guys.
I get this
failed usb_init
[2018-07-29 18:08:41.621] USB init, open device failed, err -3, you don't have privilege to
access - BSC device 1:24
[2018-07-29 18:08:41.621] See README file included for help
[2018-07-29 18:08:41.622] GekkoScience detect (1:24) failed to initialise (incorrect device?
), resetting
[2018-07-29 18:08:41.622] failed usb_init
[2018-07-29 18:08:46.958] USB init, open device failed, err -3, you don't have privilege to
access - BSC device 1:24
[2018-07-29 18:08:46.959] See README file included for help
[2018-07-29 18:08:46.959] GekkoScience detect (1:24) failed to initialise (incorrect device?
)