I keep getting this:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  geoip-database-extra gir1.2-ayatanaappindicator3-0.1 gir1.2-gexiv2-0.10
  libayatana-appindicator3-1 libayatana-indicator3-7 libjs-openlayers libnl-route-3-200
  libqt5multimedia5 libsmi2ldbl libwireshark-data libwireshark10 libwiretap7 libwscodecs1
  libwsutil8 python-bs4 python-certifi python-configobj python-html5lib python-httplib2
  python-lxml python-olefile python-openssl python-pil python-pycurl python-requests
  python-urllib3 python-webencodings wireshark wireshark-common wireshark-qt
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 34 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up install-info (6.5.0.dfsg.1-2) ...
/usr/sbin/update-info-dir: 4: /etc/environment: Syntax error: Unterminated quoted string
dpkg: error processing package install-info (--configure):
 installed install-info package post-installation script subprocess returned error exit status 2
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)

Output of cat /etc/environment:


You should edit your /etc/environment with text editor and add last quote (") to it.
For example with Nano:

sudo nano /etc/environment





Press Ctrl+O to save, then Ctrl+X to quit.

  • I did the thing you said, and this is the output when I tried sudo apt-get dist-upgrade: Do you want to continue? [Y/n] y Setting up install-info (6.5.0.dfsg.1-2) ... W: APT had planned for dpkg to do more than it reported back (0 vs 4). Affected packages: install-info:amd64 – CottonTheButton May 24 '18 at 20:53
  • 1
    Then run sudo apt-get install -f followed by sudo dpkg --configure -a. – N0rbert May 24 '18 at 20:59
  • I now get N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. – CottonTheButton May 24 '18 at 21:42
  • Try to refresh package lists with sudo apt-get update, and upgrade packages with sudo apt-get dist-upgrade then. – N0rbert May 25 '18 at 9:09
  • Tried that, it still didn't work. – CottonTheButton May 25 '18 at 9:24

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