| 1 | Difference between bbox mke2fs and standard one (dumpe2fs comparison):
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| 2 |
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| 3 | [upd: inode size has been fixed since then]
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| 4 |
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| 5 | Two significant differences:
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| 6 | - standard mke2fs has resize_inode feature and thus has reserved GDT blocks,
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| 7 | which decreases free blocks;
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| 8 | - inode size: 128/256 (since 679807k is >0.5G, standard mke2fs uses "big" inodes)
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| 9 | this affects inode table in block groups
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| 10 |
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| 11 | Filesystem volume name: <none> Filesystem volume name: <none>
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| 12 | Last mounted on: <not available> Last mounted on: <not available>
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| 13 | Filesystem UUID: f4839760-c89b-44b7-ac52-08b4e326c0b4 Filesystem UUID: 71179558-8c8e-4a56-ad54-018008f5c358
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| 14 | Filesystem magic number: 0xEF53 Filesystem magic number: 0xEF53
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| 15 | Filesystem revision #: 1 (dynamic) Filesystem revision #: 1 (dynamic)
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| 16 | Filesystem features: ext_attr dir_index filetype sparse_super Filesystem features: ext_attr resize_inode dir_index filetype sparse_super large_file
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| 17 | Filesystem flags: signed_directory_hash Filesystem flags: signed_directory_hash
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| 18 | Default mount options: (none) Default mount options: (none)
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| 19 | Filesystem state: clean Filesystem state: clean
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| 20 | Errors behavior: Continue Errors behavior: Continue
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| 21 | Filesystem OS type: Linux Filesystem OS type: Linux
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| 22 | Inode count: 42624 Inode count: 42528
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| 23 | Block count: 169951 Block count: 169951
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| 24 | Reserved block count: 8497 Reserved block count: 8497
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| 25 | Free blocks: 168594 Free blocks: 167103
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| 26 | Free inodes: 42613 Free inodes: 42517
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| 27 | First block: 0 First block: 0
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| 28 | Block size: 4096 Block size: 4096
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| 29 | Fragment size: 4096 Fragment size: 4096
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| 30 | Reserved GDT blocks: 41
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| 31 | Blocks per group: 32768 Blocks per group: 32768
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| 32 | Fragments per group: 32768 Fragments per group: 32768
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| 33 | Inodes per group: 7104 Inodes per group: 7088
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| 34 | Inode blocks per group: 222 Inode blocks per group: 443
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| 35 | Filesystem created: Wed Oct 21 13:40:55 2009 Filesystem created: Wed Oct 21 13:40:55 2009
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| 36 | Last mount time: n/a Last mount time: n/a
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| 37 | Last write time: Wed Oct 21 13:40:55 2009 Last write time: Wed Oct 21 13:40:55 2009
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| 38 | Mount count: 0 Mount count: 0
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| 39 | Maximum mount count: 20 Maximum mount count: 37
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| 40 | Last checked: Wed Oct 21 13:40:55 2009 Last checked: Wed Oct 21 13:40:55 2009
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| 41 | Check interval: 15552000 (6 months) Check interval: 15552000 (6 months)
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| 42 | Next check after: Mon Apr 19 13:40:55 2010 Next check after: Mon Apr 19 13:40:55 2010
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| 43 | Reserved blocks uid: 0 (user root) Reserved blocks uid: 0 (user root)
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| 44 | Reserved blocks gid: 0 (group root) Reserved blocks gid: 0 (group root)
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| 45 | First inode: 11 First inode: 11
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| 46 | Inode size: 128 Inode size: 256
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| 47 | Required extra isize: 28
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| 48 | Desired extra isize: 28
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| 49 | Default directory hash: half_md4 Default directory hash: half_md4
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| 50 | Directory Hash Seed: ff94d047-c9ca-4fe5-b553-937a76101a89 Directory Hash Seed: c270fd43-9868-4a92-ae99-050098e12835
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| 51 |
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| 52 |
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| 53 | Group 0: (Blocks 0-32767) Group 0: (Blocks 0-32767)
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| 54 | Primary superblock at 0, Group descriptors at 1-1 Primary superblock at 0, Group descriptors at 1-1
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| 55 | Reserved GDT blocks at 2-42
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| 56 | Block bitmap at 2 (+2), Inode bitmap at 3 (+3) Block bitmap at 43 (+43), Inode bitmap at 44 (+44)
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| 57 | Inode table at 4-225 (+4) Inode table at 45-487 (+45)
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| 58 | 32537 free blocks, 7093 free inodes, 2 directories 32274 free blocks, 7077 free inodes, 2 directories
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| 59 | Free blocks: 231-32767 Free blocks: 494-32767
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| 60 | Free inodes: 12-7104 Free inodes: 12-7088
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| 61 |
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| 62 | Group 1: (Blocks 32768-65535) Group 1: (Blocks 32768-65535)
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| 63 | Backup superblock at 32768, Group descriptors at 32769-32769 Backup superblock at 32768, Group descriptors at 32769-32769
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| 64 | Reserved GDT blocks at 32770-32810
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| 65 | Block bitmap at 32770 (+2), Inode bitmap at 32771 (+3) Block bitmap at 32811 (+43), Inode bitmap at 32812 (+44)
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| 66 | Inode table at 32772-32993 (+4) Inode table at 32813-33255 (+45)
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| 67 | 32542 free blocks, 7104 free inodes, 0 directories 32280 free blocks, 7088 free inodes, 0 directories
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| 68 | Free blocks: 32994-65535 Free blocks: 33256-65535
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| 69 | Free inodes: 7105-14208 Free inodes: 7089-14176
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| 70 |
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| 71 | Group 2: (Blocks 65536-98303) Group 2: (Blocks 65536-98303)
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| 72 | Block bitmap at 65536 (+0), Inode bitmap at 65537 (+1) Block bitmap at 65536 (+0), Inode bitmap at 65537 (+1)
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| 73 | Inode table at 65538-65759 (+2) Inode table at 65538-65980 (+2)
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| 74 | 32544 free blocks, 7104 free inodes, 0 directories 32323 free blocks, 7088 free inodes, 0 directories
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| 75 | Free blocks: 65760-98303 Free blocks: 65981-98303
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| 76 | Free inodes: 14209-21312 Free inodes: 14177-21264
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| 77 | ...
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