[bootlin/training-materials updates] master: Boot-time labs: minor updates (1d61373f)

[Michael Opdenacker]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/1d61373f9b3b454f5046b51cf9930705dfa32be3

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commit 1d61373f9b3b454f5046b51cf9930705dfa32be3
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Thu Apr 28 16:55:57 2022 +0200

    Boot-time labs: minor updates
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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1d61373f9b3b454f5046b51cf9930705dfa32be3
 labs/boot-time-application/boot-time-application.tex   | 2 +-
 labs/boot-time-init-scripts/boot-time-init-scripts.tex | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/labs/boot-time-application/boot-time-application.tex b/labs/boot-time-application/boot-time-application.tex
index 9a8df8ff..97edfdae 100644
--- a/labs/boot-time-application/boot-time-application.tex
+++ b/labs/boot-time-application/boot-time-application.tex
@@ -69,7 +69,7 @@ cd ~/boot-time-labs/rootfs/buildroot/
 make menuconfig
 \end{verbatim}
 
-In Buildroot's configuration interface:
+In Buildroot's configuration interface, in \code{ffmpeg} options:
 
 \begin{itemize}
 \item Set \code{Enabled encoders} to \code{rawvideo}
diff --git a/labs/boot-time-init-scripts/boot-time-init-scripts.tex b/labs/boot-time-init-scripts/boot-time-init-scripts.tex
index 092d8493..5f9a204f 100644
--- a/labs/boot-time-init-scripts/boot-time-init-scripts.tex
+++ b/labs/boot-time-init-scripts/boot-time-init-scripts.tex
@@ -35,12 +35,13 @@ environment variable) to boot using \code{bootchart} instead of using
 the \code{init} program provided by BusyBox.
 
 So, boot your board but stay in the U-Boot shell, by pressing the
-\code{Space} key before the timer expires.
+\code{Space} key as early as possible.
 
 Add \code{init=/sbin/bootchartd} to the bootargs variable:
 \begin{verbatim}
-U-Boot> setenv bootargs ${bootargs} init=/sbin/bootchartd
-U-Boot> saveenv
+=> setenv bootargs ${bootargs} init=/sbin/bootchartd
+=> saveenv
+=> boot
 \end{verbatim}
 
 This will make the system boot and the resulting bootlog will be located