[BL training-materials-updates] Minor improvements and fixes

[Michael Opdenacker]

Repository : git://git.free-electrons.com/training-materials.git
On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=544cc048f3e3c5435ebbf1d3c063f512a4dbbb40

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

commit 544cc048f3e3c5435ebbf1d3c063f512a4dbbb40
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Wed Oct 10 14:08:01 2018 +0200

    Minor improvements and fixes
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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

544cc048f3e3c5435ebbf1d3c063f512a4dbbb40
 agenda/buildroot-agenda.tex                                         | 2 +-
 slides/autotools-usage/autotools-usage.tex                          | 2 +-
 slides/sysdev-block-filesystems/sysdev-block-filesystems.tex        | 6 ++++--
 slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex        | 4 ++--
 .../sysdev-root-filesystem-device-files.tex                         | 2 +-
 .../sysdev-root-filesystem-virtual-fs.tex                           | 2 --
 6 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/agenda/buildroot-agenda.tex b/agenda/buildroot-agenda.tex
index cdf0f0f..bb24d24 100644
--- a/agenda/buildroot-agenda.tex
+++ b/agenda/buildroot-agenda.tex
@@ -50,7 +50,7 @@ Embedded Linux development with Buildroot training\\
     Application development with Buildroot \par
     Understanding the Buildroot internals \par
     Buildroot community: support and contribution \par
-    What's new in Buildroot ? \\
+    What's new in Buildroot? \\
     \hline
 
     {\bf Duration} & {\bf Three} days - 24 hours (8 hours per day).
diff --git a/slides/autotools-usage/autotools-usage.tex b/slides/autotools-usage/autotools-usage.tex
index db7328f..4fd9da3 100644
--- a/slides/autotools-usage/autotools-usage.tex
+++ b/slides/autotools-usage/autotools-usage.tex
@@ -305,7 +305,7 @@ strace-4.9 $ find  /tmp/test/ -type f
 
 \end{frame}
 
-\begin{frame}{{\tt --prefix} or {\tt DESTDIR} ?}
+\begin{frame}{{\tt --prefix} or {\tt DESTDIR}?}
   \begin{itemize}
   \item \code{--prefix} and \code{DESTDIR} are often misunderstood
   \item \code{--prefix} is the location where the programs/libraries
diff --git a/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex b/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
index cbb2284..51f8aaf 100644
--- a/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
+++ b/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
@@ -230,8 +230,8 @@ major minor #blocks name
     file cache, grows and shrinks to accommodate stored files
   \item How to use: choose a name to distinguish the various tmpfs
     instances you could have. Examples:\\
-    \code{mount -t tmpfs varrun /var/run}\\
-    \code{mount -t tmpfs udev /dev}
+    \code{mount -t tmpfs run /var/run}\\
+    \code{mount -t tmpfs shm /dev/shm}
   \item  See \kerneldoctext{filesystems/tmpfs.txt} in kernel sources.
   \end{itemize}
 \end{frame}
@@ -253,6 +253,8 @@ major minor #blocks name
     your files and directories
     \begin{itemize}
     \item Use the \code{genext2fs} tool, from the package of the same name
+    \item This tool only supports ext2. No equivalents exist for ext3
+          and ext4.
     \item \code{genext2fs -d rootfs/ rootfs.img}
     \item Your image is then ready to be transferred to your block
       device
diff --git a/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex b/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
index b81a8cb..bedda2c 100644
--- a/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
+++ b/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
@@ -25,7 +25,7 @@
 \end{frame}
 
 \begin{frame}
-  \frametitle{NAND flash chips: how they work ?}
+  \frametitle{NAND flash chips: how they work?}
   \begin{itemize}
   \item Encode bits with voltage levels
   \item Start with all bits set to 1
@@ -290,7 +290,7 @@ setenv mtdparts mtdparts=omap2-nand.0:512k(X-Loader)ro,1536k(U-Boot)ro,512k(Env)
   \frametitle{Linux: MTD devices interface with user space}
   \begin{itemize}
   \item MTD devices are visible in \code{/proc/mtd}
-  \item The user space only see MTD partitions, not the flash device
+  \item User space only sees MTD partitions, not the flash device
     under those partitions
   \item The {\bf mtdchar} driver creates a character device for each
     MTD device/partition of the system
diff --git a/slides/sysdev-root-filesystem-device-files/sysdev-root-filesystem-device-files.tex b/slides/sysdev-root-filesystem-device-files/sysdev-root-filesystem-device-files.tex
index ae997bf..bc7e4d3 100644
--- a/slides/sysdev-root-filesystem-device-files/sysdev-root-filesystem-device-files.tex
+++ b/slides/sysdev-root-filesystem-device-files/sysdev-root-filesystem-device-files.tex
@@ -2,7 +2,7 @@
 \begin{frame}
   \frametitle{Devices}
   \begin{itemize}
-  \item One of the kernel important role is to {\bf allow applications
+  \item One of the kernel important roles is to {\bf allow applications
       to access hardware devices}
   \item In the Linux kernel, most devices are presented to user space
     applications through two different abstractions
diff --git a/slides/sysdev-root-filesystem-virtual-fs/sysdev-root-filesystem-virtual-fs.tex b/slides/sysdev-root-filesystem-virtual-fs/sysdev-root-filesystem-virtual-fs.tex
index 7bf2068..3844fc8 100644
--- a/slides/sysdev-root-filesystem-virtual-fs/sysdev-root-filesystem-virtual-fs.tex
+++ b/slides/sysdev-root-filesystem-virtual-fs/sysdev-root-filesystem-virtual-fs.tex
@@ -50,8 +50,6 @@
 \begin{frame}[fragile]
   \frametitle{sysfs filesystem}
   \begin{itemize}
-  \item The \code{sysfs} filesystem is a feature integrated in the 2.6
-    Linux kernel
   \item It allows to represent in user space the vision that the kernel
     has of the buses, devices and drivers in the system
   \item It is useful for various user space applications that need to