When I run software updater it says that it failed to download repository information and to check Internet connectivity.
I have Internet connectivity.
How do I fix this?
editing to add content of sources,list:
sorry I can't figure out how to paste in the content of sources.list without making a huge mess. Some of it previews as really large bold print. I tried to follow the block quoting and code rules but it is a huge mess anyway.
Best Answer
In my experience, there are at least three other causes of the failure: incorrect repository location, repository is down, and incorrect proxy settings.
First, check your software repository location in
/etc/apt/sources.listor runsoftware-properties-gtk. Make sure you can reach all of the repository, e.g. by using the web browser to make sure that the site is not currently down.If it's OK, then check your system-wide proxy settings. Because software update is run by using root privilege, so the proxy settings used would be the root's too. Check this question to set system-wide proxy settings.
Another cause might be firewall, but I'm not sure :).
Hope it helps.
UPDATE
It is not a problem if you get message
gpg: /tmp/tmp<somerandom>/trustdb.gpg: trustdb createdwhen runningsoftware-properties-gtkfrom the terminal.