> When I execute apt-get update && apt-get upgrade, [...]
Let me quote `man apt-get`:
upgrade
upgrade is used to install the newest versions of all packages currently installed
on the system from the sources enumerated in /etc/apt/sources.list. 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.
dist-upgrade
dist-upgrade in addition to performing the function of upgrade, also intelligently
handles changing dependencies with new versions of packages; apt-get has a "smart"
conflict resolution system, and it will attempt to upgrade the most important
packages at the expense of less important ones if necessary. The dist-upgrade
command may therefore remove some packages. The /etc/apt/sources.list file
contains a list of locations from which to retrieve desired package files. See
also apt_preferences(5) for a mechanism for overriding the general settings for
individual packages.
you might want to use aptitude (synaptics probably works too), as it makes figuring out why it does what much easier, among other things. For a start, it lists things one item per line by default. If you decide to do so, you probably want to get started with a tutorial, because it is not completely inuitive to use.
Also, be aware that wheezy is oldstable, jessie is the current stable.
Arian
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