Next Step, Setting up the Minicom should be like : $sudo minicom -sĬhoose "Serial port Setup" menu and Then do the configuration as needed and save setup as dfl.
Let the Minicom can access the ttyUSB* using : Yo're already a member of dialout group with add : $sudo adduser $USER dialout
The default permissions for ttyS* are the following : crw-rw- 1 root dialout. These devices include, but are not limited to: ISA, PCI, USB, parallel port, serial port. The Output should be like : Bus 003 Device 001: ID 067b:2303 Prolific Technology, Inc. This page describes various ways of accessing hardware devices on Lazarus. The Serial already connected to USB Port. The link above that the kernel detected in 16550 UART which provides a ttyS0 port and some resources allocated to it ( 0x3f8 IO address and IRQ 4 ). I can provide all necessary information for both server and laptop. I added the desktop user account and root to the groups dialout and uucp. Maybe the connection works and I'm missing the final step to connect. I ran the configuration for minicom, but could only select default values because I don't find a good explanations - in all tutorials the connection just magically works after minicom -s apparently.
LIBUSB SERIAL PORT HOW TO
Maybe the BAUD rate isn't negotiated automatically and needs to be configured, but I have no idea how to figure out the correct value.
LIBUSB SERIAL PORT INSTALL
I'm suspicious that I don't have to install or configure anything on the server side except turning on the serial port in the UEFI. I payed attention to match the device file to connect to with the one printed in dmesg. In the footer for the former and both terminals don't take any input.
LIBUSB SERIAL PORT OFFLINE
Or putty, I see CTRL-A Z for help | 115200 8N1 | NOR | Minicom 2.7.1 | VT102 | Offline | ttyUSB0 When I try to connect to the server using sudo minicom -D /dev/ttyUSB0 I read about the possibility to specify a serial console to GRUB and related kernel parameters, however I don't find any clear statement whether that's necessary or not to be able to connect after the system booted (I don't need to be able to connect to GRUB's console for now). On the server side the output of dmesg | grep tty is printk: console enabled
To be printed in dmesg after it's plugged-in. usb 3-1.1: pl2303 converter now attached to ttyUSB0 The laptop doesn't have a serial port, so I use a Serial-USB adapter which causes pl2303 3-1.1:1.0: pl2303 converter detected On the server, I connected a RS232 to D-Sub connector (DB9) to the serial port of the motherboard and plugged in a gender changer. Its UEFI has an option to enable/disable the serial port which I set to enable - smart as I am - and to select 3F8h/IRQ4 or 3E8h/IRQ4 for the "Serial Port Address" where I left the initially selected 3F8h/IRQ4 without knowing what the values stand for. The motherboard is an ASRock X99 Extreme3. I'd like be able to establish a connection to a headless Ubuntu 18.04 server from a Ubuntu 18.04 laptop via serial console in order to avoid having a graphic card consuming energy in the server.
0 kommentar(er)
