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-rw-r--r--documentation/ref-manual/ref-classes.xml21
1 files changed, 16 insertions, 5 deletions
diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 2344a0406a..f7b1126d7c 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -1873,11 +1873,22 @@
</para>
<para>
- This means that each built kernel module is packaged separately and inter-module
- dependencies are created by parsing the <filename>modinfo</filename> output.
- If all modules are required, then installing the <filename>kernel-modules</filename>
- package installs all packages with modules and various other kernel packages
- such as <filename>kernel-vmlinux</filename>.
+ This means that each built kernel module is packaged separately and
+ inter-module dependencies are created by parsing the
+ <filename>modinfo</filename> output.
+ If all modules are required, then installing the
+ <filename>kernel-modules</filename> package installs all packages with
+ modules and various other kernel packages such as
+ <filename>kernel-vmlinux</filename>.
+ </para>
+
+ <para>
+ The <filename>kernel</filename> class contains logic that allows
+ you to embed an initial RAM filesystem (initramfs) image when
+ you build the kernel image.
+ For information on how to build an initramfs, see the
+ "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>"
+ section in the Yocto Project Development Manual.
</para>
<para>