debugfs load/dump test
mke2fs -Fq -b 1024 ./test.img 512
Exit status is 0
debugfs -R ''write test.data test_data'' -w ./test.img
Allocated inode: 12
Exit status is 0
e2fsck -yf -N test_filesys
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
test_filesys: 12/64 files (0.0% non-contiguous), 156/512 blocks
Exit status is 0
debugfs -R ''dump test_data test.verify'' ./test.img
Exit status is 0
cmp test.data test.verify
Exit status is 0