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ubuntu 更新后 sudo apt upgrade 不起作用

tag-icon • tag-icon apt package-management upgrade updates
ubuntu 更新后 sudo apt upgrade 不起作用

我最近使用命令行命令从 Ubuntu 18.04 升级到了 Ubuntu 18.10 sudo do-release-upgrade，此后，每当我运行 时sudo apt upgrade，我看到的都是以下内容：-

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
  bind9-host dnsutils evolution-data-server fwupdate libbind9-160 libebackend-1.2-10 libebook-1.2-19 libebook-contacts-1.2-2 libecal-1.2-19
  libedata-book-1.2-25 libedataserver-1.2-23 libedataserverui-1.2-2 libfwup1 libirs160 libisc169 libisccc160 libisccfg160 liblwres160
0 upgraded, 0 newly installed, 0 to remove and 18 not upgraded.

我该如何解决这个问题？我想升级到 Ubuntu 19.04，但这妨碍了我。此外，运行时sudo apt update我看到此警告：-

W: Target Sources (restricted/source/Sources) is configured multiple times in /etc/apt/sources.list:2 and /etc/apt/sources.list:7
W: Target Sources (restricted/source/Sources) is configured multiple times in /etc/apt/sources.list:2 and /etc/apt/sources.list:7

编辑： -

我删除了重复项，现在它sudo apt update显示：-

Reading package lists... Done                      
Building dependency tree       
Reading state information... Done
18 packages can be upgraded. Run 'apt list --upgradable' to see them.

但做起来sudo apt upgrade，还是一样。

编辑2：-

我找到了解决方案，显然，sudo apt full-upgrade它起了作用。谢谢大家的帮助！

答案1

您的 sources.list 中有重复的条目

您应该在该文件 (/etc/apt/sources.list) 中检查它们

另一种方法是：

即将

系统设置>>软件和更新>>其他软件并删除每个重复的条目。

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