今天早些时候，我在运行 64 位 Ubuntu 14.04 的电脑上运行软件更新程序时，出现了问题。更新失败，并将我重定向到错误跟踪器错误 #993407。
我重新启动了计算机并尝试了以下命令：
$ sudo apt-get autoclean
Reading package lists... Done
Building dependency tree
Reading state information... Done
$ sudo apt-get install -f
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libupstart1 linux-image-extra-3.13.0-30-generic
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 84 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up install-info (5.2.0.dfsg.1-2) ...
/etc/environment: line 2: PATH: command not found
dpkg: error processing package install-info (--configure):
subprocess installed post-installation script returned error exit status 127
Errors were encountered while processing:
install-info
E: Sub-process /usr/bin/dpkg returned an error code (1)
我提前感谢您对如何解决此问题的任何建议。
更新：
我从 Ubuntu IRC 频道获得了一些帮助。您可以看到所做的工作这里。我本来想将新信息直接发布到这个帖子中，但由于 URL 太多，我无法这样做。