Add badblocks section 5 introductory slides.

[libguestfs-talks.git] / 2019-fosdem / 5000-badblocks.html

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+<link rel="stylesheet" href="style.css" type="text/css"/>
+<script src="code.js" type="text/javascript"></script>
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+<h1>Testing the badblocks command</h1>
+
+<style>
+pre {
+    font-size: 70%;
+    background: -webkit-linear-gradient(#000, #eee);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+}
+</style>
+
+<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>