From f7f87b788bdfdaed3e69b60fd9ce9d2c17b06e0a Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Sun, 10 Dec 2017 23:55:26 +0100
Subject: Simplify and cahgne license
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 sleeping-getty.8 | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 sleeping-getty.8

(limited to 'sleeping-getty.8')

diff --git a/sleeping-getty.8 b/sleeping-getty.8
new file mode 100644
index 0000000..bcf7748
--- /dev/null
+++ b/sleeping-getty.8
@@ -0,0 +1,65 @@
+.TH SLEEPING-GETTY 8 SLEEPING-GETTY
+.SH NAME
+sleeping\-getty \- Do not start a fullblown getty before it is necessary
+.SH SYNOPSIS
+.B sleeping\-getty
+.I vtno
+.I getty-command
+.IR argument \ ...
+.SH DESCRIPTION
+.B sleeping\-getty
+shall wait until
+.I vtno
+(a number of a virtual terminal) becomes the foreground console.
+Then, it shall
+.BR execvp (3)
+to
+.IR getty-command ,
+with
+.I getty-command
+and all following arguments as the command line arguments.
+.PP
+Note that
+.B sleeping-getty
+works on VT:s, not TTY:s. It cannot wait for a serial console to
+become, active, only virtual terminals.
+.SH EXAMPLE
+.nf
+/sbin/\fBsleeping\-getty\fP \fI15\fP /sbin/got tty\fI15\fP TERM=linux
+/sbin/\fBsleeping\-getty\fP \fI16\fP /sbin/got tty\fI16\fP TERM=linux
+/sbin/\fBsleeping\-getty\fP \fI20\fP /sbin/agetty -8 -s 38400 tty\fI20\fP linux
+.fi
+.SH NOTES
+.B sleeping\-getty
+does not acquire the TTY. That would be a waste of CPU cycles.
+This means, if naïvely used, that if you start your computer,
+log in on
+.BR tty1 ,
+and start
+.BR X ,
+and have
+.B startx
+configured to start
+.B X
+on the next available VT.
+.B X
+will start on VT\ 2. This is probably not want you want.
+Instead you should edit
+.B startx
+to ensure that a VT lower than a preferred number
+(customarily 7) will not be used.
+.SH RATIONALE
+It is nice to have a score or two of TTY:s available. However,
+starting them, can require some unnecessary CPU time and will
+was memory until they are actually used. This becomes extra
+important on resource contained machines.
+.SH "SEE ALSO"
+.BR getty (8),
+.BR mingetty (8),
+.BR agetty (8),
+.BR got (8),
+.BR vtchs (1),
+.BR inittab (5)
+.SH AUTHORS
+Mattias Andrée
+.RI < maandree@kth.se >
-- 
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