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Picocom permission denied when opening serial port

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linux-howto

https://bbs.archlinux.org – Kernel 3.4.4-2, Picocom 1.7-1# picocom -b 57600 /dev/ttyUSB0 picocom v1.7 port is : /dev/ttyUSB0 flowcontrol : none baudrate is : 57600 parity is : none databits are : 8 escape is : C-a local echo is : no noinit is : no noreset is : no nolock is : no send_cmd is : sz -vv receive_cmd is : rz -vv imap is : omap is : emap is : crcrlf,delbs, FATAL: cannot lock /dev/ttyUSB0: Permission denied# ll /run/lock total 4 drwxrwxr-x 2 root lock 40 Jul 13 11:15 lockdev drwxr-xr-x 2 root root 40 Jul 13 11:15 lvm -rw-r--r-- 1 root root 4 Ju (HowTos)