Document alternative `tty ...` config option for external getty
@@ -137,13 +137,24 @@ Syntax:
Include another configuration file. Absolute path required.
* `tty [LVLS] <DEV> [BAUD] [TERM] [noclear]`
- Start the built-in getty on the given TTY device DEV, in the given
- runlevels. Default baud rate is `38400`.
+ `tty [LVLS] <CMD> <ARGS>`
+ The first variant of this option uses the built-in getty on the given
+ TTY device DEV, in the given runlevels. Default baud rate is `38400`.
+ **Example:**
```conf
tty [12345] /dev/ttyAMA0 115200 noclear
```
+ The second variant is for using an external getty, like agetty or the
+ BusyBox getty. There are no default settings for this variant, but a
+ word of caution: *you have give the absolute path to the TTY*.
+
+ **Example:**
+```conf
+ tty [12345] /sbin/getty -L 115200 /dev/ttyAMA0 vt100
+```
+
On really bare bones systems Finit offers a fallback shell, but one
can also use the `service` stanza to start a stand-alone shell:
