# HG changeset patch
# User Russ Cox <rsc@swtch.com>
# Date 1320067873 14400
# Node ID 030e00c9ed34a222f28f19734d23b6ee89409d2e
# Parent  abff10878ce4b6583d71bf3ab8bc73da68957a57
page(1): mention ghostscript, /dev/fd

diff -r abff10878ce4b6583d71bf3ab8bc73da68957a57 -r 030e00c9ed34a222f28f19734d23b6ee89409d2e man/man1/page.1
--- a/man/man1/page.1	Tue Oct 25 12:55:09 2011 -0400
+++ b/man/man1/page.1	Mon Oct 31 09:31:13 2011 -0400
@@ -270,3 +270,31 @@
 via plumbing messages.
 .PP
 There are too many keyboard commands and menu items.
+.PP
+Displaying a PostScript or PDF file depends both on having
+GhostScript
+(see
+.IR gs (1))
+installed and on the underlying operating system
+providing a file descriptor device tree at
+.BR /dev/fd .
+.PP
+Some FreeBSD installations
+do not provide file descriptors greater than 2
+in
+.BR /dev/fd .
+To fix this, add
+.IP
+.EX
+/fdescfs    /dev/fd    fdescfs    rw    0    0
+.EE
+.LP
+to
+.BR /etc/fstab ,
+and then
+.B mount
+.BR /dev/fd .
+(Adding the line to
+.B fstab
+ensures causes FreeBSD to mount the file system
+automatically at boot time.)