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<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
<topic xml:lang="en-us" id="log-viewer">
<title>The Log Viewer</title>
<body>
<p>
Every time you start up a VM, Oracle VM VirtualBox creates a log file
that records system configuration and events. The
<b outputclass="bold">Log Viewer</b> is a VirtualBox Manager tool
that enables you to view and analyze system logs.
</p>
<fig id="fig-log-viewer-tool">
<title>Log Viewer Tool, Showing System Events</title>
<xref href="images/log-viewer.png" format="png" platform="htmlhelp">
<image href="images/log-viewer.png" width="10cm" placement="break">
<alt>Log Viewer Tool, Showing System Events</alt>
</image>
</xref>
<image platform="ohc" href="images/log-viewer.png" width="10cm" placement="break">
<alt>Log Viewer Tool, Showing System Events</alt>
</image>
</fig>
<p>
To display the Log Viewer, do either of the following:
</p>
<ul>
<li>
<p>
Click the VM name in the machine list and select
<b outputclass="bold">Logs</b> from the machine tools
menu.
</p>
</li>
<li>
<p>
In the guest VM, select
<b outputclass="bold">Machine</b>,
<b outputclass="bold">Show Log</b>.
</p>
</li>
</ul>
<p>
Log messages for the VM are displayed in tabs in the Log Viewer
window. See <xref href="collect-debug-info.dita">Collecting Debugging Information</xref> for details of
the various log files generated by Oracle VM VirtualBox.
</p>
<p>
If you select multiple VMs in the machine list, logs are listed
for each VM.
</p>
<p>
The toolbar of the Log Viewer includes the following options:
</p>
<ul>
<li>
<p><b outputclass="bold">Save:</b> Exports the contents of
the selected log file to a text file. Specify the destination
filename and location in the displayed dialog.
</p>
</li>
<li>
<p><b outputclass="bold">Find:</b> Searches for a text
string in the log file.
</p>
</li>
<li>
<p><b outputclass="bold">Filter:</b> Uses filter terms to
display specific types of log messages. Common log message
terms used by Oracle VM VirtualBox, such as Audio and NAT, are
included by default. Select one or more terms from the
drop-down list. To add your own filter term, enter the text
string in the text box field.
</p>
</li>
<li>
<p><b outputclass="bold">Bookmark:</b> Saves the location
of a log message, enabling you to find it quickly. To create a
bookmark, either click on the line number, or select some text
and then click <b outputclass="bold">Bookmark</b>.
</p>
</li>
<li>
<p><b outputclass="bold">Options:</b> Configures the text
display used in the log message window.
</p>
</li>
<li>
<p><b outputclass="bold">Refresh:</b> Refreshes the log
file you are currently viewing. Only log messages in the
current tab are updated.
</p>
</li>
<li>
<p><b outputclass="bold">Reload:</b> Refreshes all log
files. Log messages in every tab are updated.
</p>
</li>
<li>
<p><b outputclass="bold">Settings:</b> Displays the
<b outputclass="bold">Settings</b> window for the VM,
enabling you to make configuration changes.
</p>
</li>
<li>
<p><b outputclass="bold">Discard:</b> For a running VM,
discards the saved state for the VM and closes it down.
</p>
</li>
<li>
<p><b outputclass="bold">Show/Start:</b> For a running VM,
<b outputclass="bold">Show</b> displays the VM window.
For a stopped VM, <b outputclass="bold">Start</b>
displays options for powering up the VM.
</p>
</li>
</ul>
</body>
</topic>
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