Name
serial
Synopsis
serial [options]Initialize a serial device. The serial port is not used for communication unless terminal is also specified. This command is available only if GRUB was compiled with serial support.
Options
- --device=device
Specify the tty device to be used in the host operating system. This option can be used only in the grub shell.
- --parity=parity
Specify the parity. The possible values are no, odd, and even; the default is no.
- --port=port
Specify the I/O port. The value of port overrides any value specified for --unit.
- --speed=speed
Specify the transmission speed (default is 9600).
- --stop=num
Specify the number of stop bits. The value of num is either 1 or 2 (default is 1).
- --unit=num
Specify the serial port to use. The value of num is a number in the range 0–3; the default is 0, corresponding to COM1.
- --word=num
Specify the number of data bits. The value of num is a number in the range 5–8 (default is 8).
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