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