partitions were already (mostly) created last attempt;
the /home/ (sda5) is unknown; I selected to delete that and create (format) as ext4
the / partition didn't exist; I created a ext4 partitioning using that space.
I'll upload from box the ~/.cache/calamares/session.log
reboot box & attempted again
testcase: custom, manual with separate /home
partitions were already (mostly) created last attempt;
the /home/ (sda5) is unknown; I selected to delete that and create (format) as ext4
the / partition didn't exist; I created a ext4 partitioning using that space.
I'll upload from box the ~/.cache/ calamares/ session. log