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	<title>forgot password &#8211; 21點情報網</title>
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		<title>FreeBSD系統在ZFS的硬碟格式下，忘記系統密碼如何排除</title>
		<link>https://ailog.tw/lifelog/2021/07/03/freebsd-zfs-resetpw/</link>
		
		<dc:creator><![CDATA[blackjack]]></dc:creator>
		<pubDate>Sat, 03 Jul 2021 14:05:52 +0000</pubDate>
				<category><![CDATA[3C資訊]]></category>
		<category><![CDATA[FreeBSD]]></category>
		<category><![CDATA[change password]]></category>
		<category><![CDATA[forgot password]]></category>
		<category><![CDATA[freebsd]]></category>
		<category><![CDATA[FreeBSD系統在ZFS的硬碟格式下，忘記系統密碼如何排除]]></category>
		<category><![CDATA[reset password]]></category>
		<category><![CDATA[root]]></category>
		<category><![CDATA[ZFS]]></category>
		<category><![CDATA[忘記密碼]]></category>
		<category><![CDATA[還原密碼]]></category>
		<category><![CDATA[重新設定密碼]]></category>
		<guid isPermaLink="false">https://ailog.tw/lifelog/?p=9986</guid>

					<description><![CDATA[重置系統的密碼是還蠻常聽到的狀況，無論是交接時沒有給系統密碼，或是太久沒登入系統自己忘了密碼均會遇到這個議題， &#8230; <p class="link-more"><a href="https://ailog.tw/lifelog/2021/07/03/freebsd-zfs-resetpw/" class="more-link">閱讀全文<span class="screen-reader-text">〈FreeBSD系統在ZFS的硬碟格式下，忘記系統密碼如何排除〉</span></a></p>]]></description>
										<content:encoded><![CDATA[<p><span style="font-size: 14pt; font-family: verdana, geneva;">重置系統的密碼是還蠻常聽到的狀況，無論是交接時沒有給系統密碼，或是太久沒登入系統自己忘了密碼均會遇到這個議題，FreeBSD在近期的版本安裝時會多了ZFS的磁區格式選項，因此在重置密碼的部分會有些許不同，今天小編就帶著大家一起來了解一下。</span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;"><span id="more-9986"></span></span></p>
<p>[操作步驟]<br />
01、FreeBSD系統開機時，選擇「Boot Single user」俗稱的單人模式<img fetchpriority="high" decoding="async" class="alignnone size-full wp-image-9989" src="https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-01.png" alt="" width="414" height="356" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-01.png 414w, https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-01-300x258.png 300w" sizes="(max-width: 414px) 100vw, 414px" /></p>
<p>02、卸載系統預設掛載的硬碟<br />
指令如下：<br />
adjkerntz -i<br />
mount -u /<br />
<img decoding="async" class="alignnone size-full wp-image-9990" src="https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-02.png" alt="" width="189" height="35" /></p>
<p>03、啟動「hostid 」服務<br />
指令如下：<br />
/etc/rc.d/hostid start<br />
<img decoding="async" class="alignnone size-full wp-image-9991" src="https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-03.png" alt="" width="499" height="50" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-03.png 499w, https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-03-300x30.png 300w" sizes="(max-width: 499px) 100vw, 499px" /></p>
<p>04、掛載ZFS磁區<br />
指令如下：<br />
zfs mount -a<br />
<img loading="lazy" decoding="async" class="alignnone size-full wp-image-9992" src="https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-04.png" alt="" width="165" height="17" /></p>
<p>05、變更root密碼<br />
指令如下：<br />
passwd<br />
<img loading="lazy" decoding="async" class="alignnone size-full wp-image-9993" src="https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-05.png" alt="" width="295" height="70" /></p>
<p>06、重新啟動系統<br />
指令如下：<br />
sync<br />
reboot<br />
<img loading="lazy" decoding="async" class="alignnone size-full wp-image-9994" src="https://ailog.tw/lifelog/wp-content/uploads/2021/07/freebsd-zfs-resetpw-06.png" alt="" width="125" height="34" /></p>
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