Näitä voi kans kokeilla. kerro jos joku näistä jutuista auttaa tuohon ongelmaan.
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apt-get update
Run this command after changing /etc/apt/sources.list or /etc/apt/preferences . For information regarding /etc/apt/preferences, see PinningHowto. Run this command periodically to make sure your source list is up-to-date. This is the equivalent of "Reload" in Synaptic or "Fetch updates" in Adept.
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apt-get upgrade
This command upgrades all installed packages. This is the equivalent of "Mark all upgrades" in Synaptic.
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apt-get dist-upgrade
This command upgrades the entire system to a newer release. The same as the above, except add the "smart upgrade" checkbox. It tells APT to use "smart" conflict resolution system, and it will attempt to upgrade the most important packages at the expense of less important ones if necessary. BR attachment:IconsPage/warning.png This is not the recommended way to perform a distribution upgrade. See [http://www.ubuntu.com/getubuntu/upgrading upgrading] for more information.
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apt-get check
This command is a diagnostic tool. It does an update of the package lists and checks for broken dependencies.
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apt-get -f install
This command does the same thing as Edit->Fix Broken Packages in Synaptic. Do this if you get complaints about packages with "unmet dependences".