Hello Marc,

23 Dec 18 16:11 at you wrote to me:

 ML> Sean, I too would like to do an upgrade, but I question what will
 ML> happen to my present set-up when I start the upgrade.  Will the new
 ML> ArcaOS preserve my old directory structure etc.?  Never have gotten a
 ML> clear answer as to what happens during the new OS install process.

ArcaOS will completely wipe the partition it installs in.  There is no upgrade 
process.

Later,
Sean

... We do not stop playing because we are old-we grow old because we stop 
playing.
--- GoldED+/LNX 1.1.5-b20170303