Name

console — Output console device and options.

Synopsis

console=

Options

ttyn

Use the virtual console device n.

ttySn[,options]ttyUSB0[,options]

Use the specified serial port. The options are of the form bbbbpnf, where bbbb is the baud rate, p is parity (n, o, or e), n is number of bits, and f is flow control (r for RTS or omitted). Default is 9600n8.

See the file Documentation/serial-console.txt for more information on how to use a serial console. If you wish to have access to the kernel console information and do not have a serial port, see the netconsole command-line option.

uart,io,addr[,options]uart,mmio,addr[,options]

Start an early, polled-mode console on the 8250/16550 UART at the specified I/O port or MMIO address, switching to the specified ttyS device later. The options are the same as for ttyS shown earlier.

Get Linux Kernel in a Nutshell now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.