Silent Robot - 2019-11-07

By default, if you are setting up an EFI partition, Calamares will create a 300Mb boot partition. It may be better for you to create these partitions first with Gparted before installing. Your disk will have to have the GPT partition structure for this to work correctly.

I use three partitons, 300Mb EFI /boot, 200Gb /root and the rest is left for /home. I do this first in Gparted and then in Calamares I use the 'Keep' option so that Calamares does not re-format the partitions.