query: I am unable to install anything including updates!
positive_passages.docid: 120
positive_passages.text: How do I restore the default repositories?
negative_passages.docid: 135383
negative_passages.text: Unable to update my system Ubuntu13.04: Getting message - requires installation of untrusted packages
negative_passages.docid: 8185
negative_passages.text: Error when installing: "unable to find a medium containing a live file system"
negative_passages.docid: 142954
negative_passages.text: bunch of errors during any installation witn any utility apt, apt-get, synaptic, etc
negative_passages.docid: 31793
negative_passages.text: The following packages have unmet dependencies!
negative_passages.docid: 73357
negative_passages.text: Every package "has no installation candidate"
negative_passages.docid: 13107
negative_passages.text: How to install updates via command line?
negative_passages.docid: 72695
negative_passages.text: Can't connect to Windows Update
negative_passages.docid: 98511
negative_passages.text: 16.04 Cannot install anything from Ubuntu Software center
negative_passages.docid: 32426
negative_passages.text: How to install packages?
negative_passages.docid: 48809
negative_passages.text: "The upgrade has aborted" error, how to proceed?
negative_passages.docid: 4305
negative_passages.text: How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?
negative_passages.docid: 29326
negative_passages.text: Can't install a package due to "Something wicked happened resolving" error
negative_passages.docid: 11579
negative_passages.text: Broken dependencies after upgrade
negative_passages.docid: 1771
negative_passages.text: How to get rid of 'security updates available' warnings?
negative_passages.docid: 49149
negative_passages.text: How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?
negative_passages.docid: 121201
negative_passages.text: Why can't I update applications without upgrading the whole OS?