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John Rose
Asked: 2014-05-13 03:34:25 +0800 CST

On Trusty: there are 19 packages shown as 'not to upgrade'

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On a clean install of Trusty, there are (shown by sudo apt-get autoremove) as 'not to upgrade'. Why is this, how can I found out what they are (either by Synaptic or CLI) and should I do something about it?

14.04

1 Answers

  1. If a package is marked "not to upgrade" it means that there is a more recent version of the package available, but apt-get upgrade will not upgrade to it because it would involve removing currently installed packages, or installing new packages.

    From man apt-get:

    apt-get upgrade: Packages currently installed with new versions available are retrieved and upgraded; under no circumstances are currently installed packages removed, or packages not already installed retrieved and installed. New versions of currently installed packages that cannot be upgraded without changing the install status of another package will be left at their current version. An update must be performed first so that apt-get knows that new versions of packages are available.

    You can force an upgrade by running apt-get dist-upgrade, which will satisfy dependencies by removing packages and installing new packages.

    For more information see What is "dist-upgrade" and why does it upgrade more than "upgrade"?

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