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Diffstat (limited to 'doc/guix.texi')
| -rw-r--r-- | doc/guix.texi | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 9dafe60eeb..8a9e1bc992 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -9724,7 +9724,20 @@ man page for more information. @item @code{tty} The name of the console this agetty runs on, as a string---e.g., -@code{"ttyS0"}. This argument is mandatory. +@code{"ttyS0"}. This argument is optional, it will default to +a reasonable default serial port used by the kernel Linux. + +For this, if there is a value for an option @code{agetty.tty} in the kernel +command line, agetty will extract the device name of the serial port +from it and use that. + +If not and if there is a value for an option @code{console} with a tty in +the Linux command line, agetty will extract the device name of the +serial port from it and use that. + +In both cases, agetty will leave the other serial device settings +(baud rate etc.) alone---in the hope that Linux pinned them to the +correct values. @item @code{baud-rate} (default: @code{#f}) A string containing a comma-separated list of one or more baud rates, in |