1create fs with metadata_csum
2Filesystem UUID:          6b33f586-a183-4383-921d-30da3fef2e5c
3change UUID
4Filesystem UUID:          6b33f586-a183-4383-921d-30da3fef2e5c
5check filesystem
6fsck returns 0
7Filesystem UUID:          6b33f586-a183-4383-921d-30da3fef2e5c
8