리눅스 dumpe2fs

dumpe2fs

1 실행예시

[root@jmnote ~]# fdisk -l /dev/xvda

Disk /dev/xvda: 31.4 GB, 31457280000 bytes
255 heads, 63 sectors/track, 3824 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/xvda1   *           1          13      104391   83  Linux
/dev/xvda2              14        3824    30611857+  8e  Linux LVM

[root@jmnote ~]# dumpe2fs /dev/xvda1
dumpe2fs 1.39 (29-May-2006)
Filesystem volume name:   /boot
Last mounted on:          <not available>
Filesystem UUID:          5976dfab-b217-4dfa-90c3-7c50cc3ed0b9
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              26104
Block count:              104388
Reserved block count:     5219
Free blocks:              64318
Free inodes:              26045
First block:              1
Block size:               1024
Fragment size:            1024
Reserved GDT blocks:      256
Blocks per group:         8192
Fragments per group:      8192
Inodes per group:         2008
Inode blocks per group:   251
Filesystem created:       Thu Sep  4 09:49:10 2008
Last mount time:          Sat May 25 13:13:39 2013
Last write time:          Sat May 25 13:13:39 2013
Mount count:              43
Maximum mount count:      -1
Last checked:             Thu Sep  4 09:49:10 2008
Check interval:           0 (<none>)
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:		  128
Journal inode:            8
Default directory hash:   tea
Directory Hash Seed:      30bd8d42-905e-4d52-bbdc-3d007f720a5f
Journal backup:           inode blocks
Journal size:             4114k


Group 0: (Blocks 1-8192)
  Primary superblock at 1, Group descriptors at 2-2
  Reserved GDT blocks at 3-258
  Block bitmap at 259 (+258), Inode bitmap at 260 (+259)
  Inode table at 261-511 (+260)
  0 free blocks, 1975 free inodes, 2 directories
  Free blocks: 
  Free inodes: 34-2008
Group 1: (Blocks 8193-16384)
  Backup superblock at 8193, Group descriptors at 8194-8194
  Reserved GDT blocks at 8195-8450
  Block bitmap at 8451 (+258), Inode bitmap at 8452 (+259)
  Inode table at 8453-8703 (+260)
  0 free blocks, 2008 free inodes, 0 directories
  Free blocks: 
  Free inodes: 2009-4016
Group 2: (Blocks 16385-24576)
  Block bitmap at 16385 (+0), Inode bitmap at 16386 (+1)
  Inode table at 16387-16637 (+2)
  0 free blocks, 2008 free inodes, 0 directories
  Free blocks: 
  Free inodes: 4017-6024
Group 3: (Blocks 24577-32768)
  Backup superblock at 24577, Group descriptors at 24578-24578
  Reserved GDT blocks at 24579-24834
  Block bitmap at 24835 (+258), Inode bitmap at 24836 (+259)
  Inode table at 24837-25087 (+260)
  0 free blocks, 1999 free inodes, 0 directories
  Free blocks: 
  Free inodes: 6034-8032
Group 4: (Blocks 32769-40960)
  Block bitmap at 32769 (+0), Inode bitmap at 32770 (+1)
  Inode table at 32771-33021 (+2)
  3933 free blocks, 2008 free inodes, 0 directories
  Free blocks: 37028-40960
  Free inodes: 8033-10040
Group 5: (Blocks 40961-49152)
  Backup superblock at 40961, Group descriptors at 40962-40962
  Reserved GDT blocks at 40963-41218
  Block bitmap at 41219 (+258), Inode bitmap at 41220 (+259)
  Inode table at 41221-41471 (+260)
  7681 free blocks, 2008 free inodes, 0 directories
  Free blocks: 41472-49152
  Free inodes: 10041-12048
Group 6: (Blocks 49153-57344)
  Block bitmap at 49153 (+0), Inode bitmap at 49154 (+1)
  Inode table at 49155-49405 (+2)
  7695 free blocks, 1991 free inodes, 1 directories
  Free blocks: 49413-49664, 49675-50176, 50184-50688, 50696-51200, 51210-53760, 53762-54272, 54377-54784, 54793-55296, 55305-55808, 55816-56320, 56322-56329, 56338-56832, 56900-57344
  Free inodes: 12050, 12067-14056
Group 7: (Blocks 57345-65536)
  Backup superblock at 57345, Group descriptors at 57346-57346
  Reserved GDT blocks at 57347-57602
  Block bitmap at 57603 (+258), Inode bitmap at 57604 (+259)
  Inode table at 57605-57855 (+260)
  7681 free blocks, 2008 free inodes, 0 directories
  Free blocks: 57856-65536
  Free inodes: 14057-16064
Group 8: (Blocks 65537-73728)
  Block bitmap at 65537 (+0), Inode bitmap at 65538 (+1)
  Inode table at 65539-65789 (+2)
  7939 free blocks, 2008 free inodes, 0 directories
  Free blocks: 65790-73728
  Free inodes: 16065-18072
Group 9: (Blocks 73729-81920)
  Backup superblock at 73729, Group descriptors at 73730-73730
  Reserved GDT blocks at 73731-73986
  Block bitmap at 73987 (+258), Inode bitmap at 73988 (+259)
  Inode table at 73989-74239 (+260)
  7681 free blocks, 2008 free inodes, 0 directories
  Free blocks: 74240-81920
  Free inodes: 18073-20080
Group 10: (Blocks 81921-90112)
  Block bitmap at 81921 (+0), Inode bitmap at 81922 (+1)
  Inode table at 81923-82173 (+2)
  7939 free blocks, 2008 free inodes, 0 directories
  Free blocks: 82174-90112
  Free inodes: 20081-22088
Group 11: (Blocks 90113-98304)
  Block bitmap at 90113 (+0), Inode bitmap at 90114 (+1)
  Inode table at 90115-90365 (+2)
  7939 free blocks, 2008 free inodes, 0 directories
  Free blocks: 90366-98304
  Free inodes: 22089-24096
Group 12: (Blocks 98305-104387)
  Block bitmap at 98305 (+0), Inode bitmap at 98306 (+1)
  Inode table at 98307-98557 (+2)
  5830 free blocks, 2008 free inodes, 0 directories
  Free blocks: 98558-104387
  Free inodes: 24097-26104

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