I'm unable to install QGIS on lubuntu (LXDE desktop). This is what it says on the terminal:
Package qgis is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'qgis' has no installation candidate
On previous attempt of installation the problem was in absence(?) of QT environment (if I understood correctly).
Best Answer
Im not sure about your distro, but on Ubuntu, you have to edit /etc/apt/sources.list file and add the qgis repository at the end (this is for 12.04 Precise):
Then also add the public key through the terminal:
Then type
to refresh the packages list, and then you should be able to do:
apt-get install qgis
Note: some of the commands may require root privileges (using sudo in front)