How can I fix a 404 error when using a PPA or updating my package lists?
Steps
- Do usual sudo apt update after adding PPA/repository.
- After you located it, open Software & Updates, and replace your release name with the available release; preferably latest or LTS one.
- Do sudo apt update again.
- You’re done!
How do I add to ETC apt sources list?
Append new line of text to current sources. list file
- CLI echo “new line of text” | sudo tee -a /etc/apt/sources.list.
- GUI (Text Editor) sudo gedit /etc/apt/sources.list.
- Paste new line of text on new line at end of current sources. list text file in Text Editor.
- Save and close sources.list.
Why does apt-get give me 404 Not Found?
It’s a bug on apt-get, that is not sending the correct GET headers, so the server answers with 404. For example, telnet to the server mirror.cs50.net at port 80 (HTTP), and enter the following (emulating an apt-get request):
What does a 404 or not found mean?
What are 404 errors. The 404 or Not Found error message is a HTTP standard response code indicating that the client was able to communicate with the server, but the server could not find what was requested. The web site hosting server will typically generate “404 – Page Not Found” web page, when users attempts to follow a broken or dead link.
Is there an apt-get update for appliance50?
An apt-get update goes through perfectly fine. But then something like apt-get install appliance50 (a package in that repo) gives me:
Is there an apt-get update for Raspberry Pi?
I’ve tried the usual dance of apt-get install -f, apt-get update and apt-get upgrade to no avail. My device can access the outside world (ie – can ping google.com). It’s a freshly installed Raspbian image downloaded from the website, and all that I have done since getting it configured is to create a new user.