[bootlin/training-materials updates] master: labs/sysdev-buildroot: add warning about the kernel modules copy (9a237bec)

[Thomas Petazzoni]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/9a237bec346f546c21be74b6624b17e098d961b3

>---------------------------------------------------------------

commit 9a237bec346f546c21be74b6624b17e098d961b3
Author: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Date:   Tue Sep 27 22:07:37 2022 +0200

    labs/sysdev-buildroot: add warning about the kernel modules copy
    
    What we're doing here is really ugly, so let people know.
    
    Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>


>---------------------------------------------------------------

9a237bec346f546c21be74b6624b17e098d961b3
 labs/sysdev-buildroot/sysdev-buildroot.tex | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/labs/sysdev-buildroot/sysdev-buildroot.tex b/labs/sysdev-buildroot/sysdev-buildroot.tex
index aa5a174d..097a1aae 100644
--- a/labs/sysdev-buildroot/sysdev-buildroot.tex
+++ b/labs/sysdev-buildroot/sysdev-buildroot.tex
@@ -55,9 +55,13 @@ are:
 
 \section{Prepare an overlay directory}
 
-To play audio in this lab, we will need to add the kernel modules
-to the root filesystem generated by Buildroot, and make sure that
-the \code{snd-usb-audio} module is automatically loaded at boot time.
+To play audio in this lab, we will need to add the kernel modules to
+the root filesystem generated by Buildroot, and make sure that the
+\code{snd-usb-audio} module is automatically loaded at boot time. Note
+that it would be better to have the Linux kernel built by Buildroot,
+so that the kernel modules are automatically installed into the root
+filesystem. But for our quick experiment, we'll just copy the kernel
+modules we already have.
 
 So, let's prepare an overlay directory (in the main lab directory)
 that Buildroot will use after building the root filesystem: