by doktor5000 » Feb 20th, '12, 13:34
In the partitioning step, go for custom partitioning, create a new / partition for Mageia, and use the existing /home partition.
But you may want to create a new user, otherwise reusing existing settings may or may not lead to many small glitches.
Then over time you can migrate all your settings to the new user. At least that would be a good idea for KDE, maybe GNOME is
more tolerant with existing settings from a different distro.