hikenboot@Parallels:~/CentOS$ sudo tune2fs -l /dev/loop0
tune2fs 1.38 (30-Jun-2005)
Filesystem volume name:   /
Last mounted on:          <not available>
Filesystem UUID:          2be5e655-c525-469b-be57-a2c6dfcf7284
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file
Default mount options:    (none)
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              638976
Block count:              1277159
Reserved block count:     63857
Free blocks:              1035168
Free inodes:              597294
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      311
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         16384
Inode blocks per group:   512
Filesystem created:       Sat Mar 25 16:09:50 2006
Last mount time:          Sun Mar 26 04:37:57 2006
Last write time:          Sun Mar 26 04:37:57 2006
Mount count:              3
Maximum mount count:      -1
Last checked:             Sat Mar 25 16:09:50 2006
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
First orphan inode:       394363
Default directory hash:   tea
Directory Hash Seed:      52fe3bd0-5866-47f8-8ca7-9810888054f3
Journal backup:           inode blocks