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	<title>Kernel Confusion &#187; PXE</title>
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	<description>Blogging about my work as an IT consultant</description>
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		<title>System Center Configuration Manager: PXE fails after SP2 installation</title>
		<link>http://fitzzz.de/index.php/2009/11/24/system-center-configuration-manager-pxe-fails-after-sp2-installation/</link>
		<comments>http://fitzzz.de/index.php/2009/11/24/system-center-configuration-manager-pxe-fails-after-sp2-installation/#comments</comments>
		<pubDate>Tue, 24 Nov 2009 13:19:58 +0000</pubDate>
		<dc:creator>Christoph Schmidt</dc:creator>
				<category><![CDATA[Configuration Manager]]></category>
		<category><![CDATA[Microsoft]]></category>
		<category><![CDATA[PXE]]></category>
		<category><![CDATA[System Center]]></category>

		<guid isPermaLink="false">http://fitzzz.de/?p=19</guid>
		<description><![CDATA[Today’s task was to upgrade an existing SCCM R2 SP1 installation to service pack 2. I checked the site status before I started: everything was “green”. The prerequisite check was “ok”, despite two minor warnings. So I went on and all SP2 tasks finished successfully. Well then, I thought, let’s check the existing OS deployment [...]]]></description>
			<content:encoded><![CDATA[<p>Today’s task was to upgrade an existing SCCM R2 SP1 installation to service pack 2. I checked the site status before I started: everything was “green”. The prerequisite check was “ok”, despite two minor warnings. So I went on and all SP2 tasks finished successfully. Well then, I thought, let’s check the existing OS deployment tasks to see if it’s still working.</p>
<p><a href="http://fitzzz.de/wp-content/uploads/2009/11/pxe_fail_11.png" target="_blank"></a></p>
<div id="attachment_22" class="wp-caption alignleft" style="width: 190px"><a href="http://fitzzz.de/wp-content/uploads/2009/11/pxe_fail_1.png" target="_blank"><img class="size-medium wp-image-22  " title="MP Error Log" src="http://fitzzz.de/wp-content/uploads/2009/11/pxe_fail_1-300x80.png" alt="MP Error Log" width="180" height="48" /></a><p class="wp-caption-text">MP Error Log</p></div>
<p>We set up a VM and tried booting into PXE… with no response of the server. <a href="http://fitzzz.de/wp-content/uploads/2009/11/pxe_fail_11.png" target="_blank"></a>Restarting the WDS service didn’t do the trick. So I dug a little deeper and took a look at the logs in %programfiles%\Microsoft Configuration Manager\Logs. Interesting files to look at: mpcontrol.log and pxecontrol.log (use SMS TRACE to</p>
<div id="attachment_24" class="wp-caption alignright" style="width: 190px"><a href="http://fitzzz.de/wp-content/uploads/2009/11/pxe_fail_2.png" target="_blank"><img class="size-medium wp-image-24  " title="pxe_fail_2" src="http://fitzzz.de/wp-content/uploads/2009/11/pxe_fail_2-300x204.png" alt="PXE Error Log" width="180" height="122" /></a><p class="wp-caption-text">PXE Error Log</p></div>
<p>view these logs, if you don’t have any other preference). The PXE log didn’t tell me anything interesting, it even logged successful self-tests! Funny, because the log in the ConfigMgr-Console told me otherwise: the PXE service was not responding. It also told me the Management Port was giving a HTTP 500 error.</p>
<p>After a lot of rebooting and error-hunting I came up with a “solution” to this problem. It seemed the service pack installation didn’t properly update the PXE and management point and caused the unresponsiveness of both service roles.</p>
<p>WARNING: You may already know it, but just to be clear on this: the Configuration Manager takes some time to do it’s work. So be calm and watch the application log for MSI events, stating a successful (de)installation before rebooting. This is true for both the ConfigMgr Roles and Client Agent.</p>
<p>I did the following to solve it:</p>
<ul>
<li>Removed the Management Point Role (in ConfigMgr)</li>
<li>Reboot</li>
<li>Reinstalled the Management Point Role</li>
<li>Removed the ConfigMgr Client Agent (ccmsetup /uninstall)</li>
<li>Removed the PXE Role (in ConfigMgr)</li>
<li>Reboot</li>
<li>Removed the WDS Role (Windows Server)</li>
<li>Reboot</li>
<li>Reinstalled the WDS Server Role (no configuration after that of course)</li>
<li>Reinstalled the PXE Role</li>
<li>Reinstalled the CCM Client Agent</li>
<li>Reboot</li>
</ul>
<p>Yes I know: lots of lots of reboots. You may skip them if you dare, please drop me a line if it work anyway.</p>
<p>After that, all components went to green in the system state view and the PXE service started to respond as expected.</p>
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