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Hello, upon trying to update all the packages, I get the 

    Hit http://ports.ubuntu.com precise-updates/universe Translation-en
    Fetched 198 B in 27s (7 B/s)                         
    Reading package lists... Done
    W: GPG error: http://ports.ubuntu.com precise-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key ftpmaster@ubuntu.com>
    W: Conflicting distribution: http://www.wiimu.com pcduino Release (expected pcduino but got )

Can someone help resolve?

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Why does it still fail for www.wiimu.com
login as: root
root@'s password:
Welcome to Linaro 12.11 (GNU/Linux 3.4.29+ armv7l)

 * Documentation:  https://wiki.linaro.org/ ?
Last login: Fri Nov 28 21:52:16 2014 from
root@ubuntu:~# apt-get update
Hit http://ports.ubuntu.com precise Release.gpg
Hit http://ports.ubuntu.com precise-security Release.gpg
Hit http://ports.ubuntu.com precise-updates Release.gpg
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://ports.ubuntu.com precise Release
Hit http://ports.ubuntu.com precise-security Release
Hit http://ppa.launchpad.net precise Release
Hit http://ports.ubuntu.com precise-updates Release
Hit http://ports.ubuntu.com precise/main Sources
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ports.ubuntu.com precise/universe Sources
Hit http://ports.ubuntu.com precise/main armhf Packages
Hit http://ports.ubuntu.com precise/universe armhf Packages
Hit http://ports.ubuntu.com precise/main TranslationIndex
Hit http://ports.ubuntu.com precise/universe TranslationIndex
Hit http://ports.ubuntu.com precise-security/main Sources
Hit http://ports.ubuntu.com precise-security/universe Sources
Hit http://ports.ubuntu.com precise-security/main armhf Packages
Hit http://ppa.launchpad.net precise/main armhf Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://ports.ubuntu.com precise-security/universe armhf Packages
Hit http://ports.ubuntu.com precise-security/main TranslationIndex
Hit http://ports.ubuntu.com precise-security/universe TranslationIndex
Hit http://ports.ubuntu.com precise/main Translation-en
Hit http://ports.ubuntu.com precise/universe Translation-en
Hit http://ports.ubuntu.com precise-security/main Translation-en
Hit http://ports.ubuntu.com precise-security/universe Translation-en
Hit http://ports.ubuntu.com precise-updates/main Sources
Hit http://ports.ubuntu.com precise-updates/universe Sources
Hit http://ports.ubuntu.com precise-updates/main armhf Packages
Hit http://ports.ubuntu.com precise-updates/universe armhf Packages
Hit http://ports.ubuntu.com precise-updates/main TranslationIndex
Hit http://ports.ubuntu.com precise-updates/universe TranslationIndex
Hit http://ports.ubuntu.com precise-updates/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en
Hit http://ports.ubuntu.com precise-updates/universe Translation-en
Hit http://www.wiimu.com pcduino Release.gpg
Hit http://www.wiimu.com pcduino Release
Hit http://www.wiimu.com pcduino/main Sources
Hit http://www.wiimu.com pcduino/main armhf Packages
Ign http://www.wiimu.com pcduino/main TranslationIndex
Ign http://www.wiimu.com pcduino/main Translation-en
Reading package lists... Done
W: Conflicting distribution: http://www.wiimu.com pcduino Release (expected pcduino but got )



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I "fixed" that by commenting the 2 lines that use wiimu.com in /etc/apt/sources.list.


I don't know if it's a very good solution, but at least I can update my system, and it seems like I can install any package I want, even without wiimu.

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So had a a similar issue. Went into /etc/apt/sources.list


Found the link in question: http://www.wiimu.com:8020/pcduino/- Tried view with web browser. As I have been trying on my work network, it seems blocked. 


Connected via a different internet source and it seems to be working. 


Recommendation: Check if you view the link in a web browser, if not, it might be just be a connectivity problem. For home networks - remember, you might have to open port 8020 on your router. Use www.canyouseeme.org to check if port 8020 is open.


Hope it helps!

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We set up a new New packages repository for pcduino. Please modify /etc/apt/sources.list 


As to pcDuino8 Uno, add the following line:

deb http://ubuntu.pcduino.com/pcduino8/ pcduino main



As to pcDuino3/2/1, add the following lines:




After that, update system:

sudo apt-get update

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