1create fs
2Filesystem volume name:   <none>
3Last mounted on:          <not available>
4Filesystem magic number:  0xEF53
5Filesystem revision #:    1 (dynamic)
6Filesystem features:      ext_attr dir_index filetype extent 64bit flex_bg sparse_super huge_file dir_nlink extra_isize metadata_csum
7Default mount options:    (none)
8Filesystem state:         clean
9Errors behavior:          Continue
10Filesystem OS type:       Linux
11Inode count:              1024
12Block count:              16384
13Reserved block count:     819
14Free blocks:              16065
15Free inodes:              1006
16First block:              1
17Block size:               1024
18Fragment size:            1024
19Group descriptor size:    64
20Blocks per group:         8192
21Fragments per group:      8192
22Inodes per group:         512
23Inode blocks per group:   128
24Flex block group size:    16
25Mount count:              0
26Check interval:           15552000 (6 months)
27Reserved blocks uid:      0
28Reserved blocks gid:      0
29First inode:              11
30Inode size:	          256
31Required extra isize:     32
32Desired extra isize:      32
33Default directory hash:   half_md4
34Checksum type:            crc32c
35
36
37Group 0: (Blocks 1-8192)
38  Primary superblock at 1, Group descriptors at 2-2
39  Block bitmap at 3 (+2)
40  Inode bitmap at 5 (+4)
41  Inode table at 7-134 (+6)
42  7876 free blocks, 494 free inodes, 4 directories, 494 unused inodes
43  Free blocks: 317-8192
44  Free inodes: 19-512
45Group 1: (Blocks 8193-16383) [INODE_UNINIT]
46  Backup superblock at 8193, Group descriptors at 8194-8194
47  Block bitmap at 4 (bg #0 + 3)
48  Inode bitmap at 6 (bg #0 + 5)
49  Inode table at 135-262 (bg #0 + 134)
50  8189 free blocks, 512 free inodes, 0 directories, 512 unused inodes
51  Free blocks: 8195-16383
52  Free inodes: 513-1024
53debugfs: stat /emptyfile
54Inode: III   Type: regular
55Size: 0
56Fragment:  Address: 0    Number: 0    Size: 0
57debugfs: stat /bigfile
58Inode: III   Type: regular
59Size: 32768
60Fragment:  Address: 0    Number: 0    Size: 0
61debugfs: stat /sparsefile
62Inode: III   Type: regular
63Size: 1073741825
64Fragment:  Address: 0    Number: 0    Size: 0
65debugfs: stat /bigzerofile
66Inode: III   Type: regular
67Size: 1073741825
68Fragment:  Address: 0    Number: 0    Size: 0
69debugfs: stat /fifo
70debugfs: stat /emptydir
71Inode: III   Type: directory
72Size: 1024
73Fragment:  Address: 0    Number: 0    Size: 0
74debugfs: stat /dir
75Inode: III   Type: directory
76Size: 1024
77Fragment:  Address: 0    Number: 0    Size: 0
78debugfs: stat /dir/file
79Inode: III   Type: regular
80Size: 8
81Fragment:  Address: 0    Number: 0    Size: 0
82debugfs: ex /emptyfile
83Level Entries       Logical      Physical Length Flags
84debugfs: ex /bigfile
85Level Entries       Logical      Physical Length Flags
86X 0/0 1/1 0-31 AAA-BBB 32
87debugfs: ex /sparsefile
88Level Entries           Logical      Physical Length Flags
89Y 0/1 1/1 1-1048576 AAA 1048576
90X 1/1 1/5 1-1 AAA-BBB 1
91X 1/1 2/5 512-512 AAA-BBB 1
92X 1/1 3/5 1024-1024 AAA-BBB 1
93X 1/1 4/5 524288-524288 AAA-BBB 1
94X 1/1 5/5 1048576-1048576 AAA-BBB 1
95debugfs: ex /bigzerofile
96Level Entries           Logical      Physical Length Flags
97debugfs: ex /dir
98Level Entries       Logical      Physical Length Flags
99X 0/0 1/1 0-0 AAA-BBB 1
100debugfs: ex /dir/file
101Level Entries       Logical      Physical Length Flags
102X 0/0 1/1 0-0 AAA-BBB 1
103Pass 1: Checking inodes, blocks, and sizes
104Pass 2: Checking directory structure
105Pass 3: Checking directory connectivity
106Pass 4: Checking reference counts
107Pass 5: Checking group summary information
108test.img: 18/1024 files (0.0% non-contiguous), 319/16384 blocks
109minify fs
110Setting reserved blocks percentage to 0% (0 blocks)
111Resizing the filesystem on test.img to 338 (1k) blocks.
112The filesystem on test.img is now 338 (1k) blocks long.
113
114Filesystem volume name:   <none>
115Last mounted on:          <not available>
116Filesystem magic number:  0xEF53
117Filesystem revision #:    1 (dynamic)
118Filesystem features:      ext_attr dir_index filetype extent 64bit flex_bg sparse_super huge_file dir_nlink extra_isize metadata_csum
119Default mount options:    (none)
120Filesystem state:         clean
121Errors behavior:          Continue
122Filesystem OS type:       Linux
123Inode count:              512
124Block count:              338
125Reserved block count:     0
126Free blocks:              151
127Free inodes:              494
128First block:              1
129Block size:               1024
130Fragment size:            1024
131Group descriptor size:    64
132Blocks per group:         8192
133Fragments per group:      8192
134Inodes per group:         512
135Inode blocks per group:   128
136Flex block group size:    16
137Mount count:              0
138Check interval:           15552000 (6 months)
139Reserved blocks uid:      0
140Reserved blocks gid:      0
141First inode:              11
142Inode size:	          256
143Required extra isize:     32
144Desired extra isize:      32
145Default directory hash:   half_md4
146Checksum type:            crc32c
147
148
149Group 0: (Blocks 1-337)
150  Primary superblock at 1, Group descriptors at 2-2
151  Block bitmap at 3 (+2)
152  Inode bitmap at 5 (+4)
153  Inode table at 7-134 (+6)
154  151 free blocks, 494 free inodes, 4 directories, 494 unused inodes
155  Free blocks: 4, 6, 135-262, 317-337
156  Free inodes: 19-512
157Pass 1: Checking inodes, blocks, and sizes
158Pass 2: Checking directory structure
159Pass 3: Checking directory connectivity
160Pass 4: Checking reference counts
161Pass 5: Checking group summary information
162test.img: 18/512 files (0.0% non-contiguous), 187/338 blocks
163minify fs (2)
164Setting reserved blocks percentage to 0% (0 blocks)
165Resizing the filesystem on test.img to 188 (1k) blocks.
166The filesystem on test.img is now 188 (1k) blocks long.
167
168Filesystem volume name:   <none>
169Last mounted on:          <not available>
170Filesystem magic number:  0xEF53
171Filesystem revision #:    1 (dynamic)
172Filesystem features:      ext_attr dir_index filetype extent 64bit flex_bg sparse_super huge_file dir_nlink extra_isize metadata_csum
173Default mount options:    (none)
174Filesystem state:         clean
175Errors behavior:          Continue
176Filesystem OS type:       Linux
177Inode count:              512
178Block count:              188
179Reserved block count:     0
180Free blocks:              1
181Free inodes:              494
182First block:              1
183Block size:               1024
184Fragment size:            1024
185Group descriptor size:    64
186Blocks per group:         8192
187Fragments per group:      8192
188Inodes per group:         512
189Inode blocks per group:   128
190Flex block group size:    16
191Mount count:              0
192Check interval:           15552000 (6 months)
193Reserved blocks uid:      0
194Reserved blocks gid:      0
195First inode:              11
196Inode size:	          256
197Required extra isize:     32
198Desired extra isize:      32
199Default directory hash:   half_md4
200Checksum type:            crc32c
201
202
203Group 0: (Blocks 1-187)
204  Primary superblock at 1, Group descriptors at 2-2
205  Block bitmap at 3 (+2)
206  Inode bitmap at 5 (+4)
207  Inode table at 7-134 (+6)
208  1 free blocks, 494 free inodes, 4 directories, 494 unused inodes
209  Free blocks: 187
210  Free inodes: 19-512
211Pass 1: Checking inodes, blocks, and sizes
212Pass 2: Checking directory structure
213Pass 3: Checking directory connectivity
214Pass 4: Checking reference counts
215Pass 5: Checking group summary information
216test.img: 18/512 files (5.6% non-contiguous), 187/188 blocks
217