We are VERY close, but I’m still a bit lost. Here’s my fstab setup:
UUID=1443803a-7890-4f73-9b66-87d206f4237b /disks/TV ext4 noatime,lazytime,rw,nofail,noauto,x-systemd.automount
UUID=55d1999c-a676-4194-8d0f-955bdd83a36c /disks/Movies ext4 noatime,lazytime,rw,nofail,noauto,x-systemd.automount
UUID=199f3024-72ad-4fd8-9d23-933e9e3165e6 /disks/Docs ext4 noatime,lazytime,rw,nofail,noauto,x-systemd.automount
UUID=39ac04ac-3fd7-472e-a87e-f4269aeea48a /disks/Software ext4 noatime,lazytime,rw,nofail,noauto,x-systemd.automount
UUID=8693c0da-fac5-4289-ab38-846234b2d266 /disks/DietPi ext4 noatime,lazytime,rw,nofail,noauto,x-systemd.automount
The /disks/DietPi is where my data was supposed to be. When the fstab was erased, the data had nowhere to go, as you said.
I updated /etc/fstab again, connected the HDDs and restarted the Pi. All partitions showed up (confirmed by samba, I can see all files in all partitions in all HDDs like nothing ever happened), except for /disks/DietPi. Still, It was detected, so I went to Drive Manager and tried to move rootFS to the partition. It was a success, but when I restarted the Pi the services still won’t work and disks/DietPi was commented out of /etc/fstab. I’m not sure what to do next.