[FE training-materials-updates] yocto: labs: fix image output format

[Antoine Ténart]

Repository : git://git.free-electrons.com/training-materials.git
On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=54012f6d241a6e000d6bad8e87eecd252530e35b

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

commit 54012f6d241a6e000d6bad8e87eecd252530e35b
Author: Antoine Tenart <antoine.tenart at free-electrons.com>
Date:   Mon Aug 21 11:06:12 2017 +0200

    yocto: labs: fix image output format
    
    Signed-off-by: Antoine Tenart <antoine.tenart at free-electrons.com>


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

54012f6d241a6e000d6bad8e87eecd252530e35b
 labs/yocto-advanced-configuration/yocto-advanced-configuration.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/labs/yocto-advanced-configuration/yocto-advanced-configuration.tex b/labs/yocto-advanced-configuration/yocto-advanced-configuration.tex
index cf3bef1..d2c180b 100644
--- a/labs/yocto-advanced-configuration/yocto-advanced-configuration.tex
+++ b/labs/yocto-advanced-configuration/yocto-advanced-configuration.tex
@@ -100,7 +100,7 @@ accessible by NFS clients. Simply uncompress the archived output image in the
 previously created \code{/nfs} directory:
 \begin{verbatim}
 sudo tar xpf $BUILDDIR/tmp/deploy/images/beaglebone/\
-  core-image-minimal-beaglebone.tar.gz -C /nfs
+  core-image-minimal-beaglebone.tar.xz -C /nfs
 \end{verbatim}
 
 Then boot the board.