The location of update pages is specified in /etc/apt/(repositories).
You need NOT to make any changes to this file until and unless you need extra repositories for your setup.
Type the following apt-get command: 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 /etc/apt/file contains a list of locations from which to retrieve desired package files. It works like Microsoft or Red Hat update manager i.e.
you will see a little icon in the kicker bar/taskbar when there are updates.
To avoid damaging your running system, upgrading should only be done from one release to the next release (e.g.
Ubuntu 12.04 to Ubuntu 12.10) or from one LTS release to the next (e.g. If you wish to 'skip' a version, you can back up your data and do a fresh installation, or progressively upgrade to each successive version.
For further stability of a LTS release there is a slight change in behaviour if you are currently running a LTS version.
LTS systems are only automatically considered for an upgrade to the next LTS via with the first point release.
You can also start the GUI tool by Clicking System The author is the creator of nix Craft and a seasoned sysadmin and a trainer for the Linux operating system/Unix shell scripting.
He has worked with global clients and in various industries, including IT, education, defense and space research, and the nonprofit sector.
LTS stands for "Long Term Support," meaning the Desktop Edition is supported for three years, and the Server Edition is supported for five years.
"Supported" means that Ubuntu will continue to provide security and the like until the EOL (End-of-life) date.
Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. After this operation, 0B of additional disk space will be used. * Starting Postgre SQL 8.3 database server * Insecure directory in $ENV while running with -T switch at /usr/share/postgresql-common/Pg line 654.