MFC r260913,266895:

Add a new flag to /etc/ttys: onifconsole. This is equivalent to "on" if the
device is an active kernel console and "off" otherwise. This is designed to
allow serial-booting x86 systems to provide a login prompt on the serial line
by default without providing one on all systems by default. Set this flag
on x86 systems for ttyu0.

Comments and suggestions by:	grehan, dteske, jilles

1 files changed, 5 insertions, 2 deletions

diff --git a/libexec/getty/ttys.5 b/libexec/getty/ttys.5
index 2ff0fc8..e555c4f 100644
--- a/libexec/getty/ttys.5
+++ b/libexec/getty/ttys.5
@@ -98,8 +98,11 @@ ttys as a group.
 .Pp
 As flag values, the strings ``on'' and ``off'' specify that
 .Xr init 8
-should (should not) execute the command given in the second field,
-while ``secure'' (if ``on'' is also specified) allows users with a
+should (should not) execute the command given in the second field.
+``onifconsole'' will cause this line to be enabled if and only if it is
+an active kernel console device (it is equivalent to ``on'' in this
+case).
+The flag ``secure'' (if the console is enabled) allows users with a
 uid of 0 to login on
 this line.
 The flag ``dialin'' indicates that a tty entry describes a dialin