I am currently on Ubuntu 14.04 (new to Ubuntu, migrated recently).
'apt-get install' works fine, and my connection is working fine as well. But when I run apt-get update, this is what happens
100% [InRelease gpgv 3,627 B] [Connecting to security.ubuntu.com
(91.189.91.13)Splitting up /var/lib/apt/lists/partial
/in.archive.ubuntu.com_ubuntu_dists_trustyIgn
http://in.archive.ubuntu.com trusty InRelease
E: GPG error: http://in.archive.ubuntu.com trusty InRelease:
Clearsigned file isn't valid, got 'NODATA'
(does the network require authentication?)
An exhaustive search online did not result in any clear solution. What I have tried till now:
wget https://dl.dropbox.com/u/8850924/fixpackage
chmod +x ./fixpackage
sudo./fixpackage
For the lazy, this is what fixpackage contains:
sudo cp -arf /var/lib/dpkg /var/lib/dpkg.backup
sudo cp /var/lib/dpkg/status-old /var/lib/dpkg/status
sudo cp /var/lib/dpkg/available-old /var/lib/dpkg/available
sudo rm -rf /var/lib/dpkg/updates/*
sudo rm -rf /var/lib/apt/lists
sudo mkdir /var/lib/apt/lists
sudo mkdir /var/lib/apt/lists/partial
sudo apt-get clean
sudo apt-get update
sudo dpkg --clear-avail
sudo dpkg --configure -a
sudo apt-get install -f
sudo apt-get update
sudo apt-get dist-upgrade
Output:
100% [InRelease gpgv 3,627 B] [Waiting for headers]Splitting up /var/lib
/apt/lists/partial/security.ubuntu.com_ubuntu_dists_trusty-
security_InRelease into data Ign http://security.ubuntu.com trusty-
security InRelease
E: GPG error: http://security.ubuntu.com trusty-security InRelease:
Clearsigned file isn't valid, got 'NODATA' (does the network require
authentication?)
Setting up google-chrome-stable (43.0.2357.124-1) ...
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
100% [InRelease gpgv 3,627 B]Splitting up /var/lib/apt/lists/partial
/in.archive.Ign http://in.archive.ubuntu.com trusty InReleasea and
signature failed
E: GPG error: http://in.archive.ubuntu.com trusty InRelease: Clearsigned
file isn't valid, got 'NODATA' (does the network require
authentication?)
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
I have also tried this solution
sudo apt-get clean
sudo mv /var/lib/apt/lists /var/lib/apt/lists.broke
sudo mkdir -p /var/lib/apt/lists/partial
sudo apt-get update
Both the solutions didn't work for me.
Let me know if any more details are required.