<pre style="margin-top: 0px; margin-bottom: 2em; padding: 1.857em; border: 0px; vertical-align: baseline; font-size: calc(11px + 0.2em); font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; background: rgb(248, 248, 248); overflow: auto; overflow-wrap: normal; user-select: text; white-space: pre-wrap; word-break: break-all; color: rgba(0, 0, 0, 0.74);">sudo sed -i -re 's/([a-z]{2}\.)?archive.ubuntu.com|security.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list
sudo apt-get update &amp;&amp; sudo apt-get dist-upgrade</pre>
<p style="margin-bottom: 1.65em; padding: 0px; border: 0px; vertical-align: baseline; font-size: 16px; font-family: &quot;Noto Sans&quot;, Arial, sans-serif; overflow-wrap: break-word; color: rgba(0, 0, 0, 0.74); background-color: #ffffff;">위 명령어로 /etc/apt/sources.list 에서 지정된 저장소 주소를 우분투 이전 버전 모음 아카이브 페이지로 변경한 다음 업데이트 합니다.</p>
<pre style="margin-top: 0px; margin-bottom: 2em; padding: 1.857em; border: 0px; vertical-align: baseline; font-size: calc(11px + 0.2em); font-family: SFMono-Regular, Consolas, &quot;Liberation Mono&quot;, Menlo, Courier, monospace; background: rgb(248, 248, 248); overflow: auto; overflow-wrap: normal; user-select: text; white-space: pre-wrap; word-break: break-all; color: rgba(0, 0, 0, 0.74);">sudo do-release-upgrade</pre>