![]() 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.
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