# Test Case: Basic statfs Information

**Test ID**: TC009-statfs-basic

## Objective

Verify FreeBSD `statfs(2)` fields against the qualified image superblock.

## Fixture

Use `images/compact.erofs`. Before transfer, record `dump.erofs -s` and the
`compact` superblock row in `fixture-evidence.txt`. Follow
`tests/G1-MANUAL-SETUP.md` and compile `tests/statfs_probe.c` in the guest.

## Procedure

Host qualification:

```sh
dump.erofs -s /work/build/repo22-g1/images/compact.erofs
python3 tests/erofs_fixture.py inspect /work/build/repo22-g1/images/compact.erofs
```

Guest dynamic check after mounting the image on `$mnt`:

```sh
./statfs_probe "$mnt"
df -kT "$mnt"
df -iT "$mnt"
mount -p | awk -v p="$mnt" '$2 == p'
```

Unmount and detach the exact dynamic md unit.

## Expected Results

- `fstype=erofs`, `bsize=4096`, `iosize=4096`, and `readonly=1`.
- `blocks` and `files` equal the image's declared block and inode counts.
- `bfree`, `bavail`, and `ffree` are zero; `df` conversions agree.
- `mount -p` contains `ro`; cleanup succeeds.

`stat -f` is not a `statfs(2)` probe and must not be substituted.