planetmaker@aeolusmaximus:~$ sudo LC_ALL=C resize2fs /dev/home/home
[sudo] Passwort für planetmaker: 
resize2fs 1.43.4 (31-Jan-2017)
The filesystem is already 473022464 (4k) blocks long.  Nothing to do!


planetmaker@aeolusmaximus:~$ lsblk -f
NAME            FSTYPE      LABEL UUID                                   MOUNTPOINT
sda                                                                      
├─sda1          ext4              27fefc1d-afdc-48e5-bde2-ccc7649f55c8   /boot
└─sda2          LVM2_member       G0hiJb-uQfK-9nBt-Ku2F-2FNO-swpV-8McDs5 
  ├─system-root ext4              fa22fd9c-45d1-41e0-9754-20956bec5bd5   /
  ├─system-swap swap              dcecf80a-26cf-4f9a-b322-6856e12685dd   
  └─system-home ext4              9b3dcfc7-2fb2-4ed3-bd14-1e521a219c91   /home/planetmaker/Bilder/database
sdb             LVM2_member       6wOUZ7-D0lf-88HA-beLg-8ezw-PQ34-jnxokC 
sdc                                                                      
└─sdc1          LVM2_member       UytveU-G41m-5Nyl-UtqQ-h1jV-96a5-2avh57 
  ├─home-swap   swap              5775994b-db72-477f-a77b-80ff45002603   
  ├─home-home   ext4              8e150e56-698a-4174-959d-8d613a4c420b   /home
  └─home-root   ext4              91cd3017-ae50-4db7-b7b0-988cf039c1f5   
sr0                                                              

planetmaker@aeolusmaximus:~$ sudo vgdisplay 
  --- Volume group ---
  VG Name               home
  System ID             
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  18
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                3
  Open LV               1
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               2,73 TiB
  PE Size               4,00 MiB
  Total PE              715396
  Alloc PE / Size       476756 / 1,82 TiB
  Free  PE / Size       238640 / 932,19 GiB
  VG UUID               r0cQF1-JM0M-k1kA-eYWF-LYkG-8C4p-rmipuZ