[FE training-materials-updates] Further flash fs lab clarifications

[Michael Opdenacker]

Repository : git://git.free-electrons.com/training-materials.git
On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=74495a14f5259dce1dae859fc18bc62845dec959

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commit 74495a14f5259dce1dae859fc18bc62845dec959
Author: Michael Opdenacker <michael.opdenacker at free-electrons.com>
Date:   Wed Nov 4 17:10:03 2015 +0100

    Further flash fs lab clarifications
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at free-electrons.com>


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74495a14f5259dce1dae859fc18bc62845dec959
 labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex b/labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
index 3e616c8..26687e3 100644
--- a/labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
+++ b/labs/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
@@ -47,8 +47,12 @@ in the next section.
 
 \section{Filesystem image preparation}
 
-Find the erase block size of the NAND flash device soldered on your
-board.
+To prepare filesystem images, we won't use what you stored on the MMC/SD
+card during the previous lab. We will get back to the filesystem sources
+that you have in \code{$HOME/embedded-linux-labs/tinysystem/nfsroot}.
+
+First, find the erase block size of the NAND flash device soldered
+on your board.
 
 Prepare a UBIFS filesystem image containing the files stored in the
 \code{/www/upload/files} directory.