tune2fs命令使用详解

几个常用的参数
-l 查看详细信息
-c 设置自检次数
-I 设置自检天数
-m 设置预留空间
-j 格式转换

[root@rhel4 ~]# tune2fs -l /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          9f7c895c-88bc-4f33-9b66-2b99214d9ff5
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      resize_inode filetype sparse_super
Default mount options:    (none)
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              4096
Block count:              16384
Reserved block count:     819
Free blocks:              15723
Free inodes:              4085
First block:              1
Block size:               1024
Fragment size:            1024
Reserved GDT blocks:      63
Blocks per group:         8192
Fragments per group:      8192
Inodes per group:         2048
Inode blocks per group:   256
Filesystem created:       Fri Feb 15 22:05:49 2008
Last mount time:          n/a
Last write time:          Fri Feb 15 22:05:49 2008
Mount count:              0
Maximum mount count:      33
Last checked:             Fri Feb 15 22:05:49 2008
Check interval:           15552000 (6 months)
Next check after:         Wed Aug 13 22:05:49 2008
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               128
Default directory hash:   tea
Directory Hash Seed:      9dee2fa5-8d27-44a9-b7b3-a4a2a55d2c32
[root@rhel4 ~]# tune2fs -c 1000 /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Setting maximal mount count to 1000
[root@rhel4 ~]# tune2fs -i 30d /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Setting interval between check 2592000 seconds
[root@rhel4 ~]# tune2fs -m 2 /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Setting reserved blocks percentage to 2 (326 blocks)
[root@rhel4 ~]# tune2fs -j /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Creating journal inode: done
This filesystem will be automatically checked every 1000 mounts or
30 days, whichever comes first.  Use tune2fs -c or -i to override.
[root@rhel4 ~]# tune2fs -l /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          9f7c895c-88bc-4f33-9b66-2b99214d9ff5
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal resize_inode filetype sparse_super
Default mount options:    (none)
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              4096
Block count:              16384
Reserved block count:     326
Free blocks:              14693
Free inodes:              4085
First block:              1
Block size:               1024
Fragment size:            1024
Reserved GDT blocks:      63
Blocks per group:         8192
Fragments per group:      8192
Inodes per group:         2048
Inode blocks per group:   256
Filesystem created:       Fri Feb 15 22:05:49 2008
Last mount time:          n/a
Last write time:          Fri Feb 15 22:08:21 2008
Mount count:              0
Maximum mount count:      1000
Last checked:             Fri Feb 15 22:05:49 2008
Check interval:           2592000 (1 month)
Next check after:         Sun Mar 16 22:05:49 2008
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:      9dee2fa5-8d27-44a9-b7b3-a4a2a55d2c32
Journal backup:           inode blocks