处理 man-db 的触发器。没有建立数据库；man-db/auto-update 不是 'true ，错误

Question

每次我通过终端在 KDE neon 中安装新软件包时都会收到此消息，这是否正常，我应该忽略它还是应该解决这个问题？

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Starting pkgProblemResolver with broken count: 0
Starting 2 pkgProblemResolver with broken count: 0
Done
The following NEW packages will be installed:
  tree
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/43.0 kB of archives.
After this operation, 115 kB of additional disk space will be used.
Selecting previously unselected package tree.
(Reading database ... 280095 files and directories currently installed.)
Preparing to unpack .../tree_1.8.0-1_amd64.deb ...
Unpacking tree (1.8.0-1) ...
Setting up tree (1.8.0-1) ...
Processing triggers for man-db (2.9.1-1) ...
Not building database; man-db/auto-update is not 'true'.

Answer 1

警告只是警告；这意味着mandb安装相关软件包时不会运行 xe2x80x99，其结果是手册页索引缓存不会更新。

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警告的技术原因是缺少/var/lib/man-db/auto-update. 我\xe2\x80\x99m 不确定是什么原因导致的。要恢复man-db触发器，请恢复该文件：

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sudo touch /var/lib/man-db/auto-update\n

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您将不再看到警告，并且缓存将被更新。您可以自己更新缓存：

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sudo mandb -pq\n

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