센토스7 파티션 확장및 축소 질문입니다.

[root@localhost ~]# df -h
Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                  16G     0   16G   0% /dev
tmpfs                     16G     0   16G   0% /dev/shm
tmpfs                     16G   50M   16G   1% /run
tmpfs                     16G     0   16G   0% /sys/fs/cgroup
/dev/mapper/centos-root   50G  8.0G   43G  16% /
/dev/sda2               1014M  144M  871M  15% /boot
/dev/sda1                200M   12M  189M   6% /boot/efi
/dev/mapper/centos-home  380G   33M  380G   1% /home
tmpfs                    3.2G     0  3.2G   0% /run/user/0

[root@localhost ~]# lvreduce -r -L 50G /dev/mapper/centos-home
fsadm: Xfs filesystem shrinking is unsupported.
  /usr/sbin/fsadm failed: 1
  Filesystem resize failed.

실패가 뜨는데요..

https://binshuuuu.tistory.com/m/45

메뉴얼대로 했는데 왜 안되는지 모르겠습니다. 너우 초보적인 질문을 드려 죄송하네요..