1 Creating regular file test.img
3 Filesystem volume name: <none>
4 Last mounted on: <not available>
5 Filesystem magic number: 0xEF53
6 Filesystem revision #: 1 (dynamic)
7 Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super huge_file dir_nlink extra_isize metadata_csum
8 Default mount options: (none)
9 Filesystem state: clean
10 Errors behavior: Continue
11 Filesystem OS type: Linux
14 Reserved block count: 819
15 Overhead clusters: 1543
21 Group descriptor size: 64
22 Reserved GDT blocks: 127
23 Blocks per group: 8192
24 Fragments per group: 8192
26 Inode blocks per group: 128
27 Flex block group size: 16
29 Check interval: 15552000 (6 months)
30 Reserved blocks uid: 0
31 Reserved blocks gid: 0
34 Required extra isize: 32
35 Desired extra isize: 32
37 Default directory hash: half_md4
38 Journal backup: inode blocks
40 Journal features: (none)
41 Total journal size: 1024k
42 Total journal blocks: 1024
43 Max transaction length: 1024
45 Journal sequence: 0x00000001
49 Group 0: (Blocks 1-8192)
50 Primary superblock at 1, Group descriptors at 2-2
51 Reserved GDT blocks at 3-129
52 Block bitmap at 130 (+129)
53 Inode bitmap at 132 (+131)
54 Inode table at 134-261 (+133)
55 7753 free blocks, 493 free inodes, 5 directories, 493 unused inodes
58 Group 1: (Blocks 8193-16383) [INODE_UNINIT]
59 Backup superblock at 8193, Group descriptors at 8194-8194
60 Reserved GDT blocks at 8195-8321
61 Block bitmap at 131 (bg #0 + 130)
62 Inode bitmap at 133 (bg #0 + 132)
63 Inode table at 262-389 (bg #0 + 261)
64 7038 free blocks, 512 free inodes, 0 directories, 512 unused inodes
65 Free blocks: 9346-16383
68 debugfs: stat /test/emptyfile
69 Inode: III Type: regular
71 Links: 1 Blockcount: 0
72 Fragment: Address: 0 Number: 0 Size: 0
73 debugfs: stat /test/bigfile
74 Inode: III Type: regular
76 Links: 1 Blockcount: 64
77 Fragment: Address: 0 Number: 0 Size: 0
78 debugfs: stat /test/zerofile
79 Inode: III Type: regular
81 Links: 1 Blockcount: 0
82 Fragment: Address: 0 Number: 0 Size: 0
83 debugfs: stat /test/silly_bs_link
84 Inode: III Type: symlink
86 Links: 1 Blockcount: 0
87 Fragment: Address: 0 Number: 0 Size: 0
88 debugfs: stat /test/emptydir
89 Inode: III Type: directory
91 Links: 2 Blockcount: 2
92 Fragment: Address: 0 Number: 0 Size: 0
93 debugfs: stat /test/dir
94 Inode: III Type: directory
96 Links: 2 Blockcount: 2
97 Fragment: Address: 0 Number: 0 Size: 0
98 debugfs: stat /test/dir/file
99 Inode: III Type: regular
101 Links: 1 Blockcount: 2
102 Fragment: Address: 0 Number: 0 Size: 0
104 debugfs: ex /test/emptyfile
105 Level Entries Logical Physical Length Flags
106 debugfs: ex /test/bigfile
107 Level Entries Logical Physical Length Flags
108 X 0/0 1/1 0-31 AAA-BBB 32
109 debugfs: ex /test/zerofile
110 Level Entries Logical Physical Length Flags
111 debugfs: ex /test/silly_bs_link
112 /test/silly_bs_link: does not uses extent block maps
113 debugfs: ex /test/emptydir
114 Level Entries Logical Physical Length Flags
115 X 0/0 1/1 0-0 AAA-BBB 1
116 debugfs: ex /test/dir
117 Level Entries Logical Physical Length Flags
118 X 0/0 1/1 0-0 AAA-BBB 1
119 debugfs: ex /test/dir/file
120 Level Entries Logical Physical Length Flags
121 X 0/0 1/1 0-0 AAA-BBB 1
134 Pass 1: Checking inodes, blocks, and sizes
135 Pass 2: Checking directory structure
136 Pass 3: Checking directory connectivity
137 Pass 4: Checking reference counts
138 Pass 5: Checking group summary information
139 test.img: 19/1024 files (0.0% non-contiguous), 1593/16384 blocks