Get useful info about your hard drive

(just because I’ll forget the command again, [that’s actually the whole point of this site :)] I needed to make a post about it :))

tune2fs -l /dev/XdXX

<code>[root@localhost](1199)# tune2fs -l /dev/hda1
tune2fs 1.35 (28-Feb-2004)
Filesystem volume name:   /boot
Last mounted on:          
Filesystem UUID:          1ba17048-a79d-444d-a712-a9c90aa97a04
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr filetype needs_recovery sparse_super
Default mount options:    (none)
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              26104
Block count:              104391
Reserved block count:     5219
Free blocks:              88910
Free inodes:              26058
First block:              1
Block size:               1024
Fragment size:            1024
Blocks per group:         8192
Fragments per group:      8192
Inodes per group:         2008
Inode blocks per group:   251
Filesystem created:       Fri Nov 26 20:09:34 2004
Last mount time:          Sun May  7 10:56:40 2006
Last write time:          Sun May  7 10:56:40 2006
Mount count:              428
Maximum mount count:      -1
Last checked:             Fri Nov 26 20:09:34 2004
Check interval:           0 ()
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:      47a6d832-2794-4e6e-ac27-2e0d51ab1af0
Journal backup:           inode blocks</code>

Another command will display even more information (superblocks, etc.) :

dumpe2fs /dev/hda1