I reinstalled a completely new system and built it from scratch (besides Windows). Everything worked just fine, even though I’m experimenting and trying many things for the first time (also I’m new to Manjaro).
I’m trying to keep a high security standard for a lot of sensitive data, even though maybe the fact I’m not an expert may lead to mistakes in my security architecture.
So I successfully added two external LUKS encrypted drives to fstab and reboots were successful at first. But later, I installed printer drivers, rebooting was not possible anymore without putting hashes in front of the two lines:
# tutorial https://www.golinuxcloud.com/mount-luks-encrypted-disk-partition-linux/
# /dev/mapper/secret /home/marcel/Dokumente ext4 defaults 0 0
# /dev/mapper/LUKSbackup2 /run/media/backup2 ext4 defaults 0 0
I followed the named tutorial, but I chose different mount points for the drives.
Maybe somebody experienced can see what my mistakes are and tell me how to do it well.