Replace tar2iso example with badblocks example.

diff --git a/2019-fosdem/.gitignore b/2019-fosdem/.gitignore
index aa996d7..1a52eaa 100644 (file)
--- a/2019-fosdem/.gitignore
+++ b/2019-fosdem/.gitignore
@@ -6,7 +6,7 @@
 /2200-partitioning.d/.root.img
 /2200-partitioning.d/root.img
 /2200-partitioning.d/swap.img
-/6500-shell.d/tar2iso.sh
+/6500-shell.d/badblocks.sh
 /nbdview/error?
 /nbdview/log?
 /nbdview/sock?
\ No newline at end of file

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deleted file mode 100644 (file)
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diff --git a/2019-fosdem/6450-plugins-shell-what.html b/2019-fosdem/6450-plugins-shell-what.html
index a1ea8ea..caa0bbd 100644 (file)
--- a/2019-fosdem/6450-plugins-shell-what.html
+++ b/2019-fosdem/6450-plugins-shell-what.html
@@ -4,6 +4,38 @@
 
 <h1>What shell script?</h1>
 
-<img src="6450-tarfile.svg" width="300">
+<style>
+pre {
+    font-size: 70%;
+    background: -webkit-linear-gradient(#000, #eee);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+}
+</style>
 
-<img src="6450-cd.svg" width="300">
+<pre>
+BADBLOCKS(8)                System Manager's Manual               BADBLOCKS(8)
+
+NAME
+       badblocks - search a device for bad blocks
+
+SYNOPSIS
+       badblocks  [  -svwnfBX  ]  [ -b block_size ] [ -c blocks_at_once ] [ -d
+       read_delay_factor ] [ -e max_bad_blocks ] [ -i input_file ] [  -o  out‐
+       put_file  ] [ -p num_passes ] [ -t test_pattern ] device [ last_block ]
+       [ first_block ]
+
+DESCRIPTION
+       badblocks is used to search for bad blocks on a device (usually a  disk
+       partition).   device  is  the  special file corresponding to the device
+       (e.g /dev/hdc1).  last_block is the last block to be checked; if it  is
+       not  specified,  the  last  block  on  the device is used as a default.
+       first_block is an optional parameter specifying the starting block num‐
+       ber  for  the  test, which allows the testing to start in the middle of
+       the disk.  If it is not specified the first block on the disk  is  used
+       as a default.
+
+       Important  note:  If  the output of badblocks is going to be fed to the
+       e2fsck or mke2fs programs, it is important that the block size is prop‐
+       erly  specified,  since  the block numbers which are generated are very
+</pre>

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deleted file mode 100644 (file)
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diff --git a/2019-fosdem/6500-shell-next b/2019-fosdem/6500-shell-next
index 0fd1dd0..00e3d49 100755 (executable)
--- a/2019-fosdem/6500-shell-next
+++ b/2019-fosdem/6500-shell-next
@@ -3,19 +3,16 @@
 source functions
 
 # Title.
-export title="Writing tar2iso.sh"
+export title="Writing badblocks.sh"
 
 # History.
-remember 'emacs tar2iso.sh &'
-remember 'nbdkit sh ./tar2iso.sh file=~/nbdkit-1.9.0.tar.gz'
+remember 'emacs badblocks.sh &'
+remember 'nbdkit sh ./badblocks.sh'
 remember 'sudo nbd-client -b 512 localhost /dev/nbd0'
-remember 'sudo mount /dev/nbd0 /tmp/mnt'
+remember 'sudo badblocks /dev/nbd0'
 
 ./restore
 pushd 6500-shell.d >/dev/null
-rm -f tar2iso.sh
-echo '#!/bin/bash' > tar2iso.sh
-echo >> tar2iso.sh
-chmod +x tar2iso.sh
+cp badblocks.sh.template badblocks.sh
 terminal
 popd >/dev/null

diff --git a/2019-fosdem/6500-shell.d/badblocks.sh.template b/2019-fosdem/6500-shell.d/badblocks.sh.template
new file mode 100755 (executable)
index 0000000..1435c36
--- /dev/null
+++ b/2019-fosdem/6500-shell.d/badblocks.sh.template
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+case "$1" in
+
+
+    *) exit 2 ;;
+esac

diff --git a/2019-fosdem/9000-final.html b/2019-fosdem/9000-final.html
index e4e1c8c..7de2cb5 100644 (file)
--- a/2019-fosdem/9000-final.html
+++ b/2019-fosdem/9000-final.html
@@ -8,6 +8,7 @@
 <li> Loopback mounts &mdash; don't do much.
 <li> Loopback mounts with NBD and nbdkit &mdash; infinitely flexible.
 <li> Lots of plugins, or write your own.
+<li> Software development and testing.
 <li> nbdkit 1.8 now available in all major Linux distros.
 <li> <a href="https://github.com/libguestfs/nbdkit">https://github.com/libguestfs/nbdkit</a>
 <li> This talk: <a href="http://git.annexia.org/?p=libguestfs-talks.git">http://git.annexia.org/?p=libguestfs-talks.git</a>

diff --git a/2019-fosdem/badblocks.sh b/2019-fosdem/badblocks.sh
new file mode 100755 (executable)
index 0000000..863c6b5
--- /dev/null
+++ b/2019-fosdem/badblocks.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+case "$1" in
+    open) ;;
+    get_size) echo 64M ;;
+    pread)
+        if [ $4 -le 100000 ] && [ $(( $4+$3 )) -gt 100000 ]; then
+            echo EIO Bad block >&2
+            exit 1
+        else
+            dd if=/dev/zero count=$3 iflag=count_bytes
+        fi ;;
+    *) exit 2 ;;
+esac