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    Contents of /trunk/mkinitrd-magellan/busybox/util-linux/mkfs_ext2.txt

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    Revision 984 - (show annotations) (download)
    Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
    File MIME type: text/plain
    File size: 7220 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1 Difference between bbox mke2fs and standard one (dumpe2fs comparison):
    2
    3 [upd: inode size has been fixed since then]
    4
    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
    46 Inode size: 128 Inode size: 256
    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 ...