我在Ubuntu12.04 LTS (精确)上。我无法使用更新管理器升级到12.10。每次尝试,都会显示12.10可用于升级:
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但是,当我单击“升级”时,会出现以下错误:
Unable to load page
Problem occurred while loading the URL:
http://archive.ubuntu.com/ubuntu/dists/quantal-updates/main/dist-upgrader-all/current/ReleaseAnnouncement.html?lang=en_US&os=ubuntu&ver=12.10
Ca
我无法从软件中心安装openJDK,我得到了错误:
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/o/openjdk-7/openjdk-7-jre-lib_7u15-2.3.7-0ubuntu1~12.10_all.deb 404 Not Found [IP: 91.189.92.200 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/o/openjdk-7/openjdk-7-jre-headless_7u15-2.3.7-0ubunt