1Difference between bbox mke2fs and standard one (dumpe2fs comparison): 2 3[upd: inode size has been fixed since then] 4 5Two 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 11Filesystem volume name: <none> Filesystem volume name: <none> 12Last mounted on: <not available> Last mounted on: <not available> 13Filesystem UUID: f4839760-c89b-44b7-ac52-08b4e326c0b4 Filesystem UUID: 71179558-8c8e-4a56-ad54-018008f5c358 14Filesystem magic number: 0xEF53 Filesystem magic number: 0xEF53 15Filesystem revision #: 1 (dynamic) Filesystem revision #: 1 (dynamic) 16Filesystem features: ext_attr dir_index filetype sparse_super Filesystem features: ext_attr resize_inode dir_index filetype sparse_super large_file 17Filesystem flags: signed_directory_hash Filesystem flags: signed_directory_hash 18Default mount options: (none) Default mount options: (none) 19Filesystem state: clean Filesystem state: clean 20Errors behavior: Continue Errors behavior: Continue 21Filesystem OS type: Linux Filesystem OS type: Linux 22Inode count: 42624 Inode count: 42528 23Block count: 169951 Block count: 169951 24Reserved block count: 8497 Reserved block count: 8497 25Free blocks: 168594 Free blocks: 167103 26Free inodes: 42613 Free inodes: 42517 27First block: 0 First block: 0 28Block size: 4096 Block size: 4096 29Fragment size: 4096 Fragment size: 4096 30 Reserved GDT blocks: 41 31Blocks per group: 32768 Blocks per group: 32768 32Fragments per group: 32768 Fragments per group: 32768 33Inodes per group: 7104 Inodes per group: 7088 34Inode blocks per group: 222 Inode blocks per group: 443 35Filesystem created: Wed Oct 21 13:40:55 2009 Filesystem created: Wed Oct 21 13:40:55 2009 36Last mount time: n/a Last mount time: n/a 37Last write time: Wed Oct 21 13:40:55 2009 Last write time: Wed Oct 21 13:40:55 2009 38Mount count: 0 Mount count: 0 39Maximum mount count: 20 Maximum mount count: 37 40Last checked: Wed Oct 21 13:40:55 2009 Last checked: Wed Oct 21 13:40:55 2009 41Check interval: 15552000 (6 months) Check interval: 15552000 (6 months) 42Next check after: Mon Apr 19 13:40:55 2010 Next check after: Mon Apr 19 13:40:55 2010 43Reserved blocks uid: 0 (user root) Reserved blocks uid: 0 (user root) 44Reserved blocks gid: 0 (group root) Reserved blocks gid: 0 (group root) 45First inode: 11 First inode: 11 46Inode size: 128 Inode size: 256 47 Required extra isize: 28 48 Desired extra isize: 28 49Default directory hash: half_md4 Default directory hash: half_md4 50Directory Hash Seed: ff94d047-c9ca-4fe5-b553-937a76101a89 Directory Hash Seed: c270fd43-9868-4a92-ae99-050098e12835 51 52 53Group 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 62Group 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 71Group 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... 78