作法:找出ext2/ext3档案系统的inode大小

时间:2020-01-09 10:41:58  来源:igfitidea点击:

问题描述:
如何找出ext3文件系统的inode大小以进行恢复。
如何找到ext2/ext3文件系统的inode大小?

解决方法:您需要使用tune2fs命令,该命令允许系统管理员在Linux ext2/ext3文件系统上调整各种可调文件系统参数。

查找文件系统的索引节点大小

-l选项列出文件系统的索引节点大小。
使用相同的选项,也可以看到文件系统超级块的其他信息。
超级块包含有关文件系统的信息,例如可用的可用块数和安装数,这些信息可能对调整有用。

# sudo tune2fs -l /dev/sda2

输出:

tune2fs 1.40.2 (12-Jul-2007)
Filesystem volume name:   
Last mounted on:          
Filesystem UUID:          8c2da865-13f4-47a2-9c92-2f31738469e8
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal resize_inode dir_index filetype needs_recovery sparse_super large_file
Filesystem flags:         signed directory hash 
Default mount options:    (none)
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              12222464
Block count:              24412775
Reserved block count:     1220638
Free blocks:              17464715
Free inodes:              12055081
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      1018
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         16384
Inode blocks per group:   512
Filesystem created:       Sat Oct  6 04:51:23 2007
Last mount time:          Fri Nov  9 08:07:04 2007
Last write time:          Fri Nov  9 08:07:04 2007
Mount count:              12
Maximum mount count:      32
Last checked:             Mon Nov  5 13:33:36 2007
Check interval:           15552000 (6 months)
Next check after:         Sat May  3 13:33:36 2008
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               128
Journal inode:            8
First orphan inode:       1163400
Default directory hash:   tea
Directory Hash Seed:      bcaf359b-11c2-4c1a-8823-92be72c09ac4
Journal backup:           inode blocks

要查找索引节点大小,请执行:

# sudo tune2fs -l /dev/sda2 | grep Inode

输出:

Inode count:              12222464
Inodes per group:         16384
Inode blocks per group:   512
Inode size:               128