e2fsprogs/tests/f_badroot/expect.1

Filesystem did not have a UUID; generating one.

Pass 1: Checking inodes, blocks, and sizes
Root inode is not a directory.  Clear? yes

Pass 2: Checking directory structure
Entry '..' in ??? (11) has deleted/unused inode 2.  Clear? yes

Pass 3: Checking directory connectivity
Root inode not allocated.  Allocate? yes

Unconnected directory inode 11 (...)
Connect to /lost+found? yes

/lost+found not found.  Create? yes

Pass 4: Checking reference counts
Inode 11 ref count is 3, should be 2.  Fix? yes

Unattached inode 12
Connect to /lost+found? yes

Inode 12 ref count is 2, should be 1.  Fix? yes

Pass 5: Checking group summary information

test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
test_filesys: 13/32 files (0.0% non-contiguous), 24/100 blocks
Exit status is 1