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-rw-r--r--system/doc/system_principles/Makefile3
-rw-r--r--system/doc/system_principles/create_target.xmlsrc8
-rw-r--r--system/doc/system_principles/xmlfiles.mk4
3 files changed, 14 insertions, 1 deletions
diff --git a/system/doc/system_principles/Makefile b/system/doc/system_principles/Makefile
index 77edea8f58..ec6591ec6b 100644
--- a/system/doc/system_principles/Makefile
+++ b/system/doc/system_principles/Makefile
@@ -28,6 +28,7 @@ include $(ERL_TOP)/erts/vsn.mk
#VSN=$(SYSTEM_VSN)
APPLICATION=otp-system-documentation
+XMLDIR := $(XMLDIR)/system_principles
# ----------------------------------------------------
# Release directory specification
# ----------------------------------------------------
@@ -52,6 +53,8 @@ XML_FILES = \
$(BOOK_FILES) $(XML_CHAPTER_FILES) \
$(XML_PART_FILES)
+XML_GEN_FILES = $(SYSTEM_PRINCIPLES_CHAPTER_GEN_FILES:%=$(XMLDIR)/%)
+
# ----------------------------------------------------
HTMLDIR = ../html/system_principles
diff --git a/system/doc/system_principles/create_target.xmlsrc b/system/doc/system_principles/create_target.xmlsrc
index f9b27ffc35..dc6cbbe980 100644
--- a/system/doc/system_principles/create_target.xmlsrc
+++ b/system/doc/system_principles/create_target.xmlsrc
@@ -263,6 +263,14 @@ os> <input>/usr/local/erl-target/bin/erl -boot /usr/local/erl-target/releases/FI
current directory create not only the file <c>mysystem.rel</c>,
but also file <c>sys.config</c>, the latter file is tacitly
put in the appropriate directory.</p>
+ <p>However, it can also be convenient to replace variables in
+ within a <c>sys.config</c> on the target after unpacking but
+ before running the release. If you have a <c>sys.config.src</c>
+ it will be included and is not required to be a valid Erlang term
+ file like <c>sys.config</c>. Before running the release you must
+ have a valid <c>sys.config</c> in the same directory, so using
+ <c>sys.config.src</c> requires having some tool to populate what is
+ needed and write <c>sys.config</c> to disk before booting the release.</p>
</section>
<section>
diff --git a/system/doc/system_principles/xmlfiles.mk b/system/doc/system_principles/xmlfiles.mk
index c3c3bb4731..f8972b24a7 100644
--- a/system/doc/system_principles/xmlfiles.mk
+++ b/system/doc/system_principles/xmlfiles.mk
@@ -20,6 +20,8 @@
SYSTEM_PRINCIPLES_CHAPTER_FILES = \
system_principles.xml \
error_logging.xml \
- create_target.xml \
upgrade.xml \
versions.xml
+
+SYSTEM_PRINCIPLES_CHAPTER_GEN_FILES = \
+ create_target.xml