| Denys Vlasenko | ece01ee | 2009-10-21 14:01:25 +0200 | [diff] [blame] | 1 | Difference between bbox mke2fs and standard one (dumpe2fs comparison): |
| 2 | |
| Denys Vlasenko | 149a32a | 2009-10-22 12:12:17 +0200 | [diff] [blame] | 3 | [upd: inode size has been fixed since then] |
| 4 | |
| Denys Vlasenko | ece01ee | 2009-10-21 14:01:25 +0200 | [diff] [blame] | 5 | Two significant differences: |
| 6 | - standard mke2fs has resize_inode feature and thus has reserved GDT blocks, |
| 7 | which decreases free blocks; |
| 8 | - inode size: 128/256 (since 679807k is >0.5G, standard mke2fs uses "big" inodes) |
| 9 | this affects inode table in block groups |
| 10 | |
| 11 | Filesystem volume name: <none> Filesystem volume name: <none> |
| 12 | Last mounted on: <not available> Last mounted on: <not available> |
| 13 | Filesystem UUID: f4839760-c89b-44b7-ac52-08b4e326c0b4 Filesystem UUID: 71179558-8c8e-4a56-ad54-018008f5c358 |
| 14 | Filesystem magic number: 0xEF53 Filesystem magic number: 0xEF53 |
| 15 | Filesystem revision #: 1 (dynamic) Filesystem revision #: 1 (dynamic) |
| 16 | Filesystem features: ext_attr dir_index filetype sparse_super Filesystem features: ext_attr resize_inode dir_index filetype sparse_super large_file |
| 17 | Filesystem flags: signed_directory_hash Filesystem flags: signed_directory_hash |
| 18 | Default mount options: (none) Default mount options: (none) |
| 19 | Filesystem state: clean Filesystem state: clean |
| 20 | Errors behavior: Continue Errors behavior: Continue |
| 21 | Filesystem OS type: Linux Filesystem OS type: Linux |
| 22 | Inode count: 42624 Inode count: 42528 |
| 23 | Block count: 169951 Block count: 169951 |
| 24 | Reserved block count: 8497 Reserved block count: 8497 |
| 25 | Free blocks: 168594 Free blocks: 167103 |
| 26 | Free inodes: 42613 Free inodes: 42517 |
| 27 | First block: 0 First block: 0 |
| 28 | Block size: 4096 Block size: 4096 |
| 29 | Fragment size: 4096 Fragment size: 4096 |
| 30 | Reserved GDT blocks: 41 |
| 31 | Blocks per group: 32768 Blocks per group: 32768 |
| 32 | Fragments per group: 32768 Fragments per group: 32768 |
| 33 | Inodes per group: 7104 Inodes per group: 7088 |
| 34 | Inode blocks per group: 222 Inode blocks per group: 443 |
| 35 | Filesystem created: Wed Oct 21 13:40:55 2009 Filesystem created: Wed Oct 21 13:40:55 2009 |
| 36 | Last mount time: n/a Last mount time: n/a |
| 37 | Last write time: Wed Oct 21 13:40:55 2009 Last write time: Wed Oct 21 13:40:55 2009 |
| 38 | Mount count: 0 Mount count: 0 |
| 39 | Maximum mount count: 20 Maximum mount count: 37 |
| 40 | Last checked: Wed Oct 21 13:40:55 2009 Last checked: Wed Oct 21 13:40:55 2009 |
| 41 | Check interval: 15552000 (6 months) Check interval: 15552000 (6 months) |
| 42 | Next check after: Mon Apr 19 13:40:55 2010 Next check after: Mon Apr 19 13:40:55 2010 |
| 43 | Reserved blocks uid: 0 (user root) Reserved blocks uid: 0 (user root) |
| 44 | Reserved blocks gid: 0 (group root) Reserved blocks gid: 0 (group root) |
| 45 | First inode: 11 First inode: 11 |
| Denys Vlasenko | eaba484 | 2009-10-21 14:25:21 +0200 | [diff] [blame] | 46 | Inode size: 128 Inode size: 256 |
| Denys Vlasenko | ece01ee | 2009-10-21 14:01:25 +0200 | [diff] [blame] | 47 | Required extra isize: 28 |
| 48 | Desired extra isize: 28 |
| 49 | Default directory hash: half_md4 Default directory hash: half_md4 |
| 50 | Directory Hash Seed: ff94d047-c9ca-4fe5-b553-937a76101a89 Directory Hash Seed: c270fd43-9868-4a92-ae99-050098e12835 |
| 51 | |
| 52 | |
| 53 | Group 0: (Blocks 0-32767) Group 0: (Blocks 0-32767) |
| 54 | Primary superblock at 0, Group descriptors at 1-1 Primary superblock at 0, Group descriptors at 1-1 |
| 55 | Reserved GDT blocks at 2-42 |
| 56 | Block bitmap at 2 (+2), Inode bitmap at 3 (+3) Block bitmap at 43 (+43), Inode bitmap at 44 (+44) |
| 57 | Inode table at 4-225 (+4) Inode table at 45-487 (+45) |
| 58 | 32537 free blocks, 7093 free inodes, 2 directories 32274 free blocks, 7077 free inodes, 2 directories |
| 59 | Free blocks: 231-32767 Free blocks: 494-32767 |
| 60 | Free inodes: 12-7104 Free inodes: 12-7088 |
| 61 | |
| 62 | Group 1: (Blocks 32768-65535) Group 1: (Blocks 32768-65535) |
| 63 | Backup superblock at 32768, Group descriptors at 32769-32769 Backup superblock at 32768, Group descriptors at 32769-32769 |
| 64 | Reserved GDT blocks at 32770-32810 |
| 65 | Block bitmap at 32770 (+2), Inode bitmap at 32771 (+3) Block bitmap at 32811 (+43), Inode bitmap at 32812 (+44) |
| 66 | Inode table at 32772-32993 (+4) Inode table at 32813-33255 (+45) |
| 67 | 32542 free blocks, 7104 free inodes, 0 directories 32280 free blocks, 7088 free inodes, 0 directories |
| 68 | Free blocks: 32994-65535 Free blocks: 33256-65535 |
| 69 | Free inodes: 7105-14208 Free inodes: 7089-14176 |
| 70 | |
| 71 | Group 2: (Blocks 65536-98303) Group 2: (Blocks 65536-98303) |
| 72 | Block bitmap at 65536 (+0), Inode bitmap at 65537 (+1) Block bitmap at 65536 (+0), Inode bitmap at 65537 (+1) |
| 73 | Inode table at 65538-65759 (+2) Inode table at 65538-65980 (+2) |
| 74 | 32544 free blocks, 7104 free inodes, 0 directories 32323 free blocks, 7088 free inodes, 0 directories |
| 75 | Free blocks: 65760-98303 Free blocks: 65981-98303 |
| 76 | Free inodes: 14209-21312 Free inodes: 14177-21264 |
| 77 | ... |