Package: cereal Version: 0.24-1 Severity: normal Thanks for maintaining cereal, I wish I had looked into it sooner!
I'm trying to use cereal with serveral USB tty adapters, but they don't reliably use the same /dev/ttyUSBn. Some of them have unique symlinks in /dev/serial/by-id/: $ sudo cereal-admin create byid /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AJ03AIG3-if00-port0 115200 vagrant adm Created session 'byid': --f byid /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AJ03AIG3-if00-port0 115200 vagrant adm Service cereal.byid added. $ sudo cereal-admin start --all timeout: finish: /var/lib/cereal/sessions/byid: (pid 11557) 0s, normally down Session 'byid' could not be started. $ tail $(cereal f -p byid) 2015-11-09_18:59:14.36012 lockfile: Try praying, giving up on "/var/lock/LCK..serial/by-id/usb-FTDI_FT232R_USB_UART_AJ03AIG3-if00-port0" 2015-11-09_18:59:15.56556 starting screen session... 2015-11-09_18:59:15.56893 lockfile: Try praying, giving up on "/var/lock/LCK..serial/by-id/usb-FTDI_FT232R_USB_UART_AJ03AIG3-if00-port0" 2015-11-09_18:59:16.69408 starting screen session... 2015-11-09_18:59:16.69772 lockfile: Try praying, giving up on "/var/lock/LCK..serial/by-id/usb-FTDI_FT232R_USB_UART_AJ03AIG3-if00-port0" 2015-11-09_18:59:17.85367 starting screen session... 2015-11-09_18:59:17.85716 lockfile: Try praying, giving up on "/var/lock/LCK..serial/by-id/usb-FTDI_FT232R_USB_UART_AJ03AIG3-if00-port0" 2015-11-09_18:59:18.92299 rm: cannot remove '/var/lock/LCK..serial/by-id/usb-FTDI_FT232R_USB_UART_AJ03AIG3-if00-port0': No such file or directory 2015-11-09_18:59:20.01930 starting screen session... 2015-11-09_18:59:20.02281 lockfile: Try praying, giving up on "/var/lock/LCK..serial/by-id/usb-FTDI_FT232R_USB_UART_AJ03AIG3-if00-port0" Using /dev/ttyUSB0 instead works fine, but this can sometimes change after a reboot, so the log files would get inconsistant over time, and it would be harder to be able to name the devices... It would be nice if cereal could support using the /dev/serial/by-id/ symlinks. Any other suggestions for reliably having cereal consistantly use the appropriate /dev/ttyUSBn... which might be better anyways, because not all the USB adapters used produce a consistant /dev/serial/by-id/ Thanks! live well, vagrant -- System Information: Debian Release: 8.2 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: armhf (armv7l) Kernel: Linux 3.16.0-4-armmp (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages cereal depends on: ii adduser 3.113+nmu3 ii procmail 3.22-24 ii runit 2.1.2-3 ii screen 4.2.1-3+deb8u1 cereal recommends no packages. cereal suggests no packages. -- no debconf information
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