[FE training-materials-updates] block filesystems: don't say that block devs don't wear out

[Michael Opdenacker]

Repository : git://git.free-electrons.com/training-materials.git

On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=9a2bed382826c3e1bc3d98483d6a29f1258c99cf

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commit 9a2bed382826c3e1bc3d98483d6a29f1258c99cf
Author: Michael Opdenacker <michael.opdenacker at free-electrons.com>
Date:   Thu Oct 31 04:54:12 2013 +0100

    block filesystems: don't say that block devs don't wear out
    
    - Not true with flash based block devices
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at free-electrons.com>


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9a2bed382826c3e1bc3d98483d6a29f1258c99cf
 .../sysdev-block-filesystems.tex                   |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex b/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
index 47a880a..19724ab 100644
--- a/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
+++ b/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
@@ -10,16 +10,15 @@
       filesystems
     \end{itemize}
   \item {\bf Block devices} can be read and written to on a per-block
-    basis, without erasing, and do not wear out when being used for a
-    long time
+    basis, without erasing.
     \begin{itemize}
     \item Hard disks, floppy disks, RAM disks
-    \item USB keys, Compact Flash, SD card, these are based on
+    \item USB keys, Compact Flash, SD card: these are based on
       flash storage, but have an integrated controller that emulates a block
-      device
+      device, managing and erasing flash sectors in a transparent way. 
     \end{itemize}
   \item {\bf Flash devices} can be read, but writing requires erasing,
-    and often occurs on a larger size than the “block” size
+    and often occurs on a larger size than the “block” size.
     \begin{itemize}
     \item NOR flash, NAND flash
     \end{itemize}