If you have not configured console= in kernel command line start rvice. The last specified console= will be set as /dev/console.Īt boot, systemd-getty-generator(8) will start a getty instance for each console specified in the kernel command line. Kernel's output can be sent to serial console by setting the console= kernel parameter. Read Syslinux Wiki:Config#SERIAL for the directive's options. The serial parameters are hardcoded to 8 bits, no parity and 1 stop bit. To enable serial console in Syslinux, edit syslinux.cfg and add SERIAL as the first directive in the configuration file.įor COM1 ( /dev/ttyS0) with baud rate of 115200 bit/s: REFInd supports serial console only in text mode. If no key is pressed, the boot menu will appear on whichever (serial or console) appears first in the terminal configuration line. Note: When the terminal -timeout=5 serial console line is added to your menu.lst, your boot sequence will now show a series of Press any key to continue messages. Read GRUB's manual on Using GRUB via a serial line and the serial command for detailed explanation of the available options.Įdit the GRUB Legacy configuration file /boot/grub/menu.lst and add these lines to the general area of the configuration: GRUB_SERIAL_COMMAND='serial -unit=0 -speed=115200' For COM1 ( /dev/ttyS0) with baud rate of 115200 bit/s: Next add the GRUB_SERIAL_COMMAND variable and set the options for the serial connection. When using GRUB with a generated grub.cfg, edit /etc/default/grub and enable serial input and output support:

5.3 Missing ports on multi-port expansion cardsĬonfigure console access on the target machine Boot loader GRUB.

4 Debugging an unresponsive machine using a serial console.

3 Installing Arch Linux using the serial console.

2.1 Connect using a terminal emulator program.

1 Configure console access on the target machine.

Free serial terminal program