dumpe2fs
This is from a 7.345GB raspberry pi minmalimage of buster with influxdb and grafana
Some reformatting and removal of long strings of values and many groups removed.
sudo dumpe2fs /dev/mmcblk0p2
dumpe2fs 1.44.5 (15-Dec-2018)
Filesystem volume name: rootfs
Last mounted on: /
Filesystem UUID: 2ab3f8e1-7dc6-43f5-b0db-dd5759d51d4e
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg
sparse_super large_file dir_nlink extra_isize
Filesystem flags: unsigned_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 466784
Block count: 1873920
Free blocks: 1238105
Free inodes: 405555
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 117
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8048
Inode blocks per group: 503
Flex block group size: 16
Filesystem created: Wed Sep 25 20:24:00 2019
Last mount time: Sat Feb 1 06:34:50 2020
Last write time: Thu Jan 30 14:49:13 2020
Mount count: 6
Maximum mount count: -1
Last checked: Thu Jan 30 15:48:51 2020
Check interval: 0 ()
Lifetime writes: 6251 MB
Reserved block count: 64532
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 32
Desired extra isize: 32
Journal inode: 8
First orphan inode: 177
Default directory hash: half_md4
Directory Hash Seed: 6a8bbd2a-f66d-4c8e-9850-4792710fafc0
Journal backup: inode blocks
Journal features: journal_incompat_revoke
Journal size: 32M
Journal length: 8192
Journal sequence: 0x0000afe6
Journal start: 6808
Group 0: (Blocks 0-32767)
Primary superblock at 0, Group descriptors at 1-1
Reserved GDT blocks at 2-118
Block bitmap at 119 (+119)
Inode bitmap at 134 (+134)
Inode table at 149-651 (+149)
17 free blocks, 1 free inodes, 573 directories
Free blocks: 9216-9232
Free inodes: 1302
Group 1: (Blocks 32768-65535)
Backup superblock at 32768, Group descriptors at 32769-32769
Reserved GDT blocks at 32770-32886
Block bitmap at 120 (bg #0 + 120)
Inode bitmap at 135 (bg #0 + 135)
Inode table at 652-1154 (bg #0 + 652)
33 free blocks, 0 free inodes, 1128 directories
Free blocks: 35120-35121, 48235, 51904-51907, 52417, 52423-52428, 55179-55194, 55814, 56321, 57723
Free inodes:
Group 2: (Blocks 65536-98303)
Block bitmap at 121 (bg #0 + 121)
Inode bitmap at 136 (bg #0 + 136)
Inode table at 1155-1657 (bg #0 + 1155)
0 free blocks, 1 free inodes, 1001 directories
Free blocks:
Free inodes: 23694
Group 3: (Blocks 98304-131071)
Backup superblock at 98304, Group descriptors at 98305-98305
Reserved GDT blocks at 98306-98422
Block bitmap at 122 (bg #0 + 122)
Inode bitmap at 137 (bg #0 + 137)
Inode table at 1658-2160 (bg #0 + 1658)
57 free blocks, 0 free inodes, 538 directories
Free blocks: 102000-102025, 102028-102030, 106191, 106269, 112118-112119, 113821-113831, 113835, 113845, …
Free inodes:
Group 4: (Blocks 131072-163839)
Block bitmap at 123 (bg #0 + 123)
Inode bitmap at 138 (bg #0 + 138)
Inode table at 2161-2663 (bg #0 + 2161)
6041 free blocks, 0 free inodes, 761 directories
Free blocks: 131703, 131742, 131744, 131815-132127, 132148-132212, 132253-132276, 132320-132610, 132612-133283, …
Free inodes:
Group 5: (Blocks 163840-196607)
Backup superblock at 163840, Group descriptors at 163841-163841
Reserved GDT blocks at 163842-163958
Block bitmap at 124 (bg #0 + 124)
Inode bitmap at 139 (bg #0 + 139)
Inode table at 2664-3166 (bg #0 + 2664)
1203 free blocks, 0 free inodes, 563 directories
Free blocks: 172394-172426, 176976-176998, 177371-177482, 177840-177869, 178430-178792, 179034-179035, 179046-179047, 179080-179083, 179206-179207, 180529-180541, 184264, 184291, 187895, 188350-188371, 188376-188415, 190581-190586, 190693, 190777, 190976-191130, 191134-191487, 191510, 191512-191517, 191536, 191538-191539, 191541-191544, 191571, 191573-191574, 191580-191585, 191604, 191606-191607, 191609-191612, 191628, 191630-191635
Free inodes:
Group 6: (Blocks 196608-229375)
Block bitmap at 125 (bg #0 + 125)
Inode bitmap at 140 (bg #0 + 140)
Inode table at 3167-3669 (bg #0 + 3167)
4101 free blocks, 3105 free inodes, 322 directories
Free blocks: 206794-206848, 206850-206995, 207001-207002, 207004, 207012, 207015-207016, 207027-207028,
Free inodes: 52952, 52979, 52990, 52995, 53002-53023, 53067, 53089-53092, 53096-53098, 53102-53104, 53109-53111,
Group 7: (Blocks 229376-262143)
Backup superblock at 229376, Group descriptors at 229377-229377
Reserved GDT blocks at 229378-229494
Block bitmap at 126 (bg #0 + 126)
Inode bitmap at 141 (bg #0 + 141)
Inode table at 3670-4172 (bg #0 + 3670)
8149 free blocks, 8046 free inodes, 2 directories
Free blocks: 230423-230424, 230426-230566, 230568-230582, 230584-230604, 230607,
Free inodes: 56339-64384
Group 8: (Blocks 262144-294911)
Block bitmap at 127 (bg #0 + 127)
Inode bitmap at 142 (bg #0 + 142)
Inode table at 4173-4675 (bg #0 + 4173)
3315 free blocks, 8046 free inodes, 2 directories
Free blocks: 262155-262157, 262180-262196, 262790-262823, 263092-263094, 263327-
Free inodes: 64387-72432
Group 9: (Blocks 294912-327679)
Backup superblock at 294912, Group descriptors at 294913-294913
Reserved GDT blocks at 294914-295030
Block bitmap at 128 (bg #0 + 128)
Inode bitmap at 143 (bg #0 + 143)
Inode table at 4676-5178 (bg #0 + 4676)
15015 free blocks, 8047 free inodes, 1 directories
Free blocks: 295525-295527, 295685-295807, 295897-295903, 295923-296023, 296025-
Free inodes: 72434-80480
Group 10: (Blocks 327680-360447)
Block bitmap at 129 (bg #0 + 129)
Inode bitmap at 144 (bg #0 + 144)
Inode table at 5179-5681 (bg #0 + 5179)
3754 free blocks, 8048 free inodes, 0 directories
Free blocks: 353280-354303, 357718-360447
Free inodes: 80481-88528
Group 11: (Blocks 360448-393215)
Block bitmap at 130 (bg #0 + 130)
Inode bitmap at 145 (bg #0 + 145)
Inode table at 5682-6184 (bg #0 + 5682)
32768 free blocks, 8048 free inodes, 0 directories
Free blocks: 360448-393215
Free inodes: 88529-96576
Group 12: (Blocks 393216-425983)
Block bitmap at 131 (bg #0 + 131)
Inode bitmap at 146 (bg #0 + 146)
Inode table at 6185-6687 (bg #0 + 6185)
32768 free blocks, 8048 free inodes, 0 directories
Free blocks: 393216-425983
Free inodes: 96577-104624
Group 13: (Blocks 425984-458751)
…
Group 55: (Blocks 1802240-1835007)
Block bitmap at 1572871 (bg #48 + 7)
Inode bitmap at 1572881 (bg #48 + 17)
Inode table at 1576405-1576907 (bg #48 + 3541)
32768 free blocks, 8048 free inodes, 0 directories
Free inodes: 442641-450688
Group 56: (Blocks 1835008-1867775)
Block bitmap at 1572872 (bg #48 + 8)
Inode bitmap at 1572882 (bg #48 + 18)
Inode table at 1576908-1577410 (bg #48 + 4044)
32768 free blocks, 8048 free inodes, 0 directories
Free inodes: 450689-458736
Group 57: (Blocks 1867776-1873919)
Block bitmap at 1572873 (bg #48 + 9)
Inode bitmap at 1572883 (bg #48 + 19)
Inode table at 1577411-1577913 (bg #48 + 4547)
6144 free blocks, 8048 free inodes, 0 directories
Free inodes: 458737-466784