Thank you, but @ Nachlese
That part still confuses me!
As I only have chosen the home partition to be encrypted during the installation process, how can than be the whole disk encrypted ? Now, I’m more confused, sorry.
I just checked the partitions in Gparted and only home is encrypted!
That cannot be the case!
However, and as far I understood your explanation, those problems only arise if boot is encrypted, correct?