사용법 : dumpe2fs 장치명 

# dumpe2fs sda5 
dumpe2fs 1.27 (8-Mar-2002) 
dumpe2fs: No such file or directory while trying to open sda5 
Couldn't find valid filesystem superblock. 
[root@web2 root]# dumpe2fs /dev/s 
Display all 2263 possibilities? (y or n) 
[root@web2 root]# dumpe2fs /dev/sda 
Display all 432 possibilities? (y or n) 
[root@web2 root]# dumpe2fs /dev/sda5 
dumpe2fs 1.27 (8-Mar-2002) 
Filesystem volume name:   /www 
Last mounted on:          <not available> 
Filesystem UUID:          a51029dc-c411-11d6-9153-8517cb048f00 
Filesystem magic number:  0xEF53 
Filesystem revision #:    1 (dynamic) 
Filesystem features:      has_journal filetype needs_recovery sparse_super 
Filesystem state:         clean 
Errors behavior:          Continue 
Filesystem OS type:       Linux 
Inode count:              1523712 
Block count:              3044309 
Reserved block count:     152215 
Free blocks:              2639536 
Free inodes:              1520445 
First block:              0 
Block size:               4096 
Fragment size:            4096 
Blocks per group:         32768 
Fragments per group:      32768 
Inodes per group:         16384 
Inode blocks per group:   512 
Last mount time:          Wed Feb 18 18:31:02 2004 
Last write time:          Wed Feb 18 18:31:02 2004 
Mount count:              12 
Maximum mount count:      -1 
Last checked:             Tue Sep 10 01:31:51 2002 
Check interval:           0 (<none>) 
Reserved blocks uid:      0 (user root) 
Reserved blocks gid:      0 (group root) 
First inode:              11 
Inode size:               128 
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