ovince wrote:Now, I can run only a quasi Mageia (very few applications installed, no internet access and so on).
is this no wifi, or no wired lan as well?
if absolutely no internet, suggest downloading a copy of Mageia M7 net-install or Classical Installer .isos onto another computer and burning to USB or cd/DVD.
then booting to that media and choosing to upgrade your install- it is a GUI option.
or if you have a MGA6 classical install Media somewhere, and your wired LAN available, you can MAKE the install media choose the Mga7 mirrors and continue your upgrade as suggested by jibz