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I have occasionally not been able to install/update and the computer complains about something running apt-get, but there is nothing running (I have checked the system monitor to see whether or not there is anything like synaptic/aptitude running and there is nothing that it says is running.) --Sam Mercier

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up vote 1 down vote accepted

Did you check for dpkg? There are a number of individual pieces. Also, if apt crashed hard, it might have left a lockfile hanging around.

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ok I think it was just some random problem and I can't get it to happen and it hasn't happened since I posted thank you though. – Sam Mercier Apr 22 '11 at 14:46

Two more programs to watch for: Update Manager (update-manager) and Ubuntu Software Center (software-center).

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Ja and neither of them are running. I have checked. – Sam Mercier Apr 21 '11 at 23:25

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