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Love to have nmap on my #raspberrypi, but:

root@qwers:/home/pi# apt-get update
Hit:1 http://archive.raspberrypi.org/debian stretch InRelease
Hit:2 https://deb.nodesource.com/node_9.x stretch InRelease
Reading package lists... Done
root@qwers:/home/pi# apt-get install nmap
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package nmap
  1. apt-cache search nmap has no result:
  2. and /etc/apt/sources.list: No such file or directory

Went trough these steps without any result: apt - "E: Unable to locate package update" when I try to update my system, why? - Ask Ubuntu

Ended up here to: Apt "could not find a distribution template" error - Ask Ubuntu with the result of:

aptsources.distro.NoDistroTemplateException: Error: could not find a distribution template for Raspbian/stretch
eapo
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2 Answers2

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Old question, but if anyone have the same problem, here is my solution:

I had the same problem not being able to find the repositories on just one of my Raspberry Pis. The solution was to add the following to /etc/dhcpcd.conf

static domain_name_servers=8.8.4.4 8.8.8.8

These are Google's DNS IPs but you can change them to any valid DNS

After rebooting everything is great.

MatsK
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Steve Hargrave
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Raspbian - unable to locate package mysql-server-5.6 after adding repo - Raspberry Pi Stack Exchange led me to the solution after realized

  1. the /etc/apt/sources.list was a broken symlink to /etc/apt/sources.list.d/official-package-repositories.list
  2. solution: cp /etc/apt/sources.list.d/nodesource.list /etc/apt/sources.list
  3. then deb http://archive.raspbian.org/raspbian/ stretch main added to the list
  4. apt-get update
  5. apt-get install nmap
  6. Success
eapo
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  • seems like the issue is that your /etc/apt/sources.list file was missing/corrupt/compelte garbage ... changing that file to be the node source list is not really a solution - because now you have no way to update raspbian ... also, /etc/apt/sources.list.d/nodesource.list is not part of the standard raspbian distro. Clearly when you configured your system to access node repositories, you messed things up badly! – Jaromanda X Jun 12 '18 at 00:06
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    This is an absolutely horrible answer – Jaromanda X Jun 12 '18 at 12:58
  • raspbian updating well after this.. what can be the solution then @JaromandaX – eapo Jun 13 '18 at 02:59
  • Is it? You must have an odd setup in /etc/apt – Jaromanda X Jun 13 '18 at 03:12