draklive-install proposes either automated partitioning or custom partitioning. If you choose custom partitioning (potentially out of curiosity, to know what it would let you do that the automated partitioning doesn't), there is no evident way to go backwards, even if you did not touch the partitions table.
There should be some kind of "Cancel" button in the main window of the custom partitioning tool.
The current workaround is to click "Done", and then in the next dialog complaining about the lack of a root filesystem, click "Cancel", which brings you back to DrakX partitioning wizard. This works, but a proper "Cancel" button would be way better.
Steps to Reproduce:
The code is actually in drakxtools
Mageia 6 =>