concepts-manual: Updated Image Generation section.

Added wording to note that the rootfs might be compressed
depending on the IMAGE_FSTYPES setting, which would have to
actually do compression.  Also, fixed examples of "do_image_type"
and "do_image_ext4" so that there is no "[depends]" as part
of the example.

(From yocto-docs rev: 18ecdc6dd8722212c94000950841a4c06d3e48aa)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/documentation/concepts-manual/concepts-manual-concepts.xml b/documentation/concepts-manual/concepts-manual-concepts.xml
index 5c81863443..41b3418400 100644
--- a/documentation/concepts-manual/concepts-manual-concepts.xml
+++ b/documentation/concepts-manual/concepts-manual-concepts.xml
@@ -1443,10 +1443,12 @@
                     <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></ulink>
                     variable.
                     The process turns everything into an image file or a set of
-                    image files and compresses the root filesystem image to
+                    image files and can compress the root filesystem image to
                     reduce the overall size of the image.
                     The formats used for the root filesystem depend on the
                     <filename>IMAGE_FSTYPES</filename> variable.
+                    Compression depends on whether the formats support
+                    compression.
                 </para>
 
                 <para>
@@ -1454,14 +1456,14 @@
                     particular image <replaceable>type</replaceable> would
                     take the following form:
                     <literallayout class='monospaced'>
-     do_image_<replaceable>type</replaceable>[depends]
+     do_image_<replaceable>type</replaceable>
                     </literallayout>
                     So, if the <replaceable>type</replaceable> as specified by
                     the <filename>IMAGE_FSTYPES</filename> were
                     <filename>ext4</filename>, the dynamically generated task
                     would be as follows:
                     <literallayout class='monospaced'>
-     do_image_ext4[depends]
+     do_image_ext4
                     </literallayout>
                 </para>