From 69451b09686e591468e6b7b959544974b724cbe8 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Thu, 26 Jul 2012 14:30:07 -0400
Subject: [PATCH] Document that the pg_upgrade user of rsync might want to skip
 some files, like postmaster.pid.

Backpatch to 9.2.
---
 doc/src/sgml/pgupgrade.sgml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/pgupgrade.sgml b/doc/src/sgml/pgupgrade.sgml
index cffcebb307..fcbe551e76 100644
--- a/doc/src/sgml/pgupgrade.sgml
+++ b/doc/src/sgml/pgupgrade.sgml
@@ -530,7 +530,9 @@ psql --username postgres --file script.sql postgres
    of the old cluster, use <command>rsync</> to create a dirty
    copy of the old cluster while the server is running, then shut down
    the old server and run <command>rsync</> again to update the copy with any
-   changes to make it consistent.
+   changes to make it consistent.  You might want to exclude some
+   files, e.g. <filename>postmaster.pid</>, as documented in <xref
+   linkend="backup-lowlevel-base-backup">.
   </para>
 
  <refsect2>
-- 
2.40.0