before_expand

sudo dumpe2fs /dev/sdb6
dumpe2fs 1.44.1 (24-Mar-2018)
Filesystem volume name:   resin-data
Last mounted on:          <not available>
Filesystem UUID:          a104969b-2ebe-4890-88b1-2aff56c8a507
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super large_file huge_file dir_nlink extra_isize metadata_csum
Filesystem flags:         signed_directory_hash 
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              24576
Block count:              196608
Reserved block count:     9830
Free blocks:              122000
Free inodes:              21122
First block:              1
Block size:               1024
Fragment size:            1024
Group descriptor size:    64
Reserved GDT blocks:      256
Blocks per group:         8192
Fragments per group:      8192
Inodes per group:         1024
Inode blocks per group:   128
Flex block group size:    16
Filesystem created:       Thu Sep  3 18:42:35 2020
Last mount time:          n/a
Last write time:          Thu Sep 24 14:26:00 2020
Mount count:              0
Maximum mount count:      -1
Last checked:             Thu Sep  3 18:42:35 2020
Check interval:           0 (<none>)
Lifetime writes:          67 MB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:	          128
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      7f242a0d-1ed8-4b8b-a727-26c3241b36b9
Journal backup:           inode blocks
Checksum type:            crc32c
Checksum:                 0x85604df8
Journal features:         (none)
Journal size:             4096k
Journal length:           4096
Journal sequence:         0x00000001
Journal start:            0


Group 0: (Blocks 1-8192) csum 0xd09b [ITABLE_ZEROED]
  Primary superblock at 1, Group descriptors at 2-3
  Reserved GDT blocks at 4-259
  Block bitmap at 260 (+259), csum 0x365b477a
  Inode bitmap at 276 (+275), csum 0x851f9f18
  Inode table at 292-419 (+291)
  0 free blocks, 0 free inodes, 131 directories
  Free blocks: 
  Free inodes: 
Group 1: (Blocks 8193-16384) csum 0xc4b0 [ITABLE_ZEROED]
  Backup superblock at 8193, Group descriptors at 8194-8195
  Reserved GDT blocks at 8196-8451
  Block bitmap at 261 (bg #0 + 260), csum 0x365b477a
  Inode bitmap at 277 (bg #0 + 276), csum 0x851f9f18
  Inode table at 420-547 (bg #0 + 419)
  0 free blocks, 0 free inodes, 174 directories
  Free blocks: 
  Free inodes: 
Group 2: (Blocks 16385-24576) csum 0x2f35 [ITABLE_ZEROED]
  Block bitmap at 262 (bg #0 + 261), csum 0x365b477a
  Inode bitmap at 278 (bg #0 + 277), csum 0x851f9f18
  Inode table at 548-675 (bg #0 + 547)
  0 free blocks, 0 free inodes, 201 directories
  Free blocks: 
  Free inodes: 
Group 3: (Blocks 24577-32768) csum 0xc50b [ITABLE_ZEROED]
  Backup superblock at 24577, Group descriptors at 24578-24579
  Reserved GDT blocks at 24580-24835
  Block bitmap at 263 (bg #0 + 262), csum 0x365b477a
  Inode bitmap at 279 (bg #0 + 278), csum 0x84e5e98e
  Inode table at 676-803 (bg #0 + 675)
  0 free blocks, 642 free inodes, 96 directories, 642 unused inodes
  Free blocks: 
  Free inodes: 3455-4096
Group 4: (Blocks 32769-40960) csum 0x1949 [INODE_UNINIT, ITABLE_ZEROED]
  Block bitmap at 264 (bg #0 + 263), csum 0x365b477a
  Inode bitmap at 280 (bg #0 + 279), csum 0x00000000
  Inode table at 804-931 (bg #0 + 803)
  0 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 
  Free inodes: 4097-5120
Group 5: (Blocks 40961-49152) csum 0xb7c5 [INODE_UNINIT, ITABLE_ZEROED]
  Backup superblock at 40961, Group descriptors at 40962-40963
  Reserved GDT blocks at 40964-41219
  Block bitmap at 265 (bg #0 + 264), csum 0x365b477a
  Inode bitmap at 281 (bg #0 + 280), csum 0x00000000
  Inode table at 932-1059 (bg #0 + 931)
  0 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 
  Free inodes: 5121-6144
Group 6: (Blocks 49153-57344) csum 0xa17b [INODE_UNINIT, ITABLE_ZEROED]
  Block bitmap at 266 (bg #0 + 265), csum 0x365b477a
  Inode bitmap at 282 (bg #0 + 281), csum 0x00000000
  Inode table at 1060-1187 (bg #0 + 1059)
  0 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 
  Free inodes: 6145-7168
Group 7: (Blocks 57345-65536) csum 0x0ff7 [INODE_UNINIT, ITABLE_ZEROED]
  Backup superblock at 57345, Group descriptors at 57346-57347
  Reserved GDT blocks at 57348-57603
  Block bitmap at 267 (bg #0 + 266), csum 0x365b477a
  Inode bitmap at 283 (bg #0 + 282), csum 0x00000000
  Inode table at 1188-1315 (bg #0 + 1187)
  0 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 
  Free inodes: 7169-8192
Group 8: (Blocks 65537-73728) csum 0x1827 [INODE_UNINIT, ITABLE_ZEROED]
  Block bitmap at 268 (bg #0 + 267), csum 0xf3f7a43c
  Inode bitmap at 284 (bg #0 + 283), csum 0x00000000
  Inode table at 1316-1443 (bg #0 + 1315)
  4516 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 69213-73728
  Free inodes: 8193-9216
Group 9: (Blocks 73729-81920) csum 0x4581 [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Backup superblock at 73729, Group descriptors at 73730-73731
  Reserved GDT blocks at 73732-73987
  Block bitmap at 269 (bg #0 + 268), csum 0x00000000
  Inode bitmap at 285 (bg #0 + 284), csum 0x00000000
  Inode table at 1444-1571 (bg #0 + 1443)
  7933 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 73988-81920
  Free inodes: 9217-10240
Group 10: (Blocks 81921-90112) csum 0x0162 [INODE_UNINIT, ITABLE_ZEROED]
  Block bitmap at 270 (bg #0 + 269), csum 0x5d7e382d
  Inode bitmap at 286 (bg #0 + 285), csum 0x00000000
  Inode table at 1572-1699 (bg #0 + 1571)
  4096 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 86017-90112
  Free inodes: 10241-11264
Group 11: (Blocks 90113-98304) csum 0xad20 [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 271 (bg #0 + 270), csum 0x00000000
  Inode bitmap at 287 (bg #0 + 286), csum 0x00000000
  Inode table at 1700-1827 (bg #0 + 1699)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 90113-98304
  Free inodes: 11265-12288
Group 12: (Blocks 98305-106496) csum 0x06aa [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 272 (bg #0 + 271), csum 0x00000000
  Inode bitmap at 288 (bg #0 + 287), csum 0x00000000
  Inode table at 1828-1955 (bg #0 + 1827)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 98305-106496
  Free inodes: 12289-13312
Group 13: (Blocks 106497-114688) csum 0xa826 [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 273 (bg #0 + 272), csum 0x00000000
  Inode bitmap at 289 (bg #0 + 288), csum 0x00000000
  Inode table at 1956-2083 (bg #0 + 1955)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 106497-114688
  Free inodes: 13313-14336
Group 14: (Blocks 114689-122880) csum 0x965e [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 274 (bg #0 + 273), csum 0x00000000
  Inode bitmap at 290 (bg #0 + 289), csum 0x00000000
  Inode table at 2084-2211 (bg #0 + 2083)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 114689-122880
  Free inodes: 14337-15360
Group 15: (Blocks 122881-131072) csum 0x38d2 [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 275 (bg #0 + 274), csum 0x00000000
  Inode bitmap at 291 (bg #0 + 290), csum 0x00000000
  Inode table at 2212-2339 (bg #0 + 2211)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 122881-131072
  Free inodes: 15361-16384
Group 16: (Blocks 131073-139264) csum 0x7162 [INODE_UNINIT, ITABLE_ZEROED]
  Block bitmap at 131073 (+0), csum 0x4e302d99
  Inode bitmap at 131081 (+8), csum 0x00000000
  Inode table at 131089-131216 (+16)
  7152 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 132113-139264
  Free inodes: 16385-17408
Group 17: (Blocks 139265-147456) csum 0x184a [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 131074 (bg #16 + 1), csum 0x00000000
  Inode bitmap at 131082 (bg #16 + 9), csum 0x00000000
  Inode table at 131217-131344 (bg #16 + 144)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 139265-147456
  Free inodes: 17409-18432
Group 18: (Blocks 147457-155648) csum 0x7d6c [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 131075 (bg #16 + 2), csum 0x00000000
  Inode bitmap at 131083 (bg #16 + 10), csum 0x00000000
  Inode table at 131345-131472 (bg #16 + 272)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 147457-155648
  Free inodes: 18433-19456
Group 19: (Blocks 155649-163840) csum 0x6836 [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 131076 (bg #16 + 3), csum 0x00000000
  Inode bitmap at 131084 (bg #16 + 11), csum 0x00000000
  Inode table at 131473-131600 (bg #16 + 400)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 155649-163840
  Free inodes: 19457-20480
Group 20: (Blocks 163841-172032) csum 0xecb5 [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 131077 (bg #16 + 4), csum 0x00000000
  Inode bitmap at 131085 (bg #16 + 12), csum 0x00000000
  Inode table at 131601-131728 (bg #16 + 528)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 163841-172032
  Free inodes: 20481-21504
Group 21: (Blocks 172033-180224) csum 0xd48b [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 131078 (bg #16 + 5), csum 0x00000000
  Inode bitmap at 131086 (bg #16 + 13), csum 0x00000000
  Inode table at 131729-131856 (bg #16 + 656)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 172033-180224
  Free inodes: 21505-22528
Group 22: (Blocks 180225-188416) csum 0xb1ad [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
  Block bitmap at 131079 (bg #16 + 6), csum 0x00000000
  Inode bitmap at 131087 (bg #16 + 14), csum 0x00000000
  Inode table at 131857-131984 (bg #16 + 784)
  8192 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 180225-188416
  Free inodes: 22529-23552
Group 23: (Blocks 188417-196607) csum 0x1b4b [INODE_UNINIT, ITABLE_ZEROED]
  Block bitmap at 131080 (bg #16 + 7), csum 0x1de66f9a
  Inode bitmap at 131088 (bg #16 + 15), csum 0x00000000
  Inode table at 131985-132112 (bg #16 + 912)
  8191 free blocks, 1024 free inodes, 0 directories, 1024 unused inodes
  Free blocks: 188417-196607
  Free inodes: 23553-24576