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I've been using auto update for a while, but recently I discovered the downloaded package cache missing in /var/cache/apt/archives, some deb packages, like Skype, are removed, and I don't know why.

So I'm thinking about this option: APT::Periodic::AutocleanInterval, currently set to 0.

This page didn't provide much information: https://help.ubuntu.com/community/AutomaticSecurityUpdates

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2 Answers 2

up vote 1 down vote accepted

If you don't know what you are doing don't use commandline. Use GUIs like synaptic. There are a lot of options to configure how Ubuntu should treat available update. To start it just press Alt+F2 and when dialog appears type command

gksudo synaptic

fill in password and when synaptic opens go to settings->repository see the updates tab and select options as per your flavor

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right , i shouldn't really waste time here , i see an auto-update entry inside –  warl0ck Oct 7 '11 at 9:17

The command just cleans up the local cache.

See https://help.ubuntu.com/12.04/serverguide/automatic-updates.html

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