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kernel_Notes/Zim/Utils/dumpe2fs.txt
2012-08-08 15:17:56 +08:00

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Content-Type: text/x-zim-wiki
Wiki-Format: zim 0.4
Creation-Date: 2011-03-27T19:14:14+08:00
====== dumpe2fs ======
Created Sunday 27 March 2011
dumpe2fs — a command utility to dump e2fs information
geekard@geekard-laptop:~$ sudo dumpe2fs -h /dev/sda3
[sudo] password for geekard:
dumpe2fs 1.41.11 (14-Mar-2010)
Filesystem volume name: /
Last mounted on: /
Filesystem UUID: 18d7325c-ab28-4fca-95a9-a5b43cc0f839
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 2138112
Block count: 8550912
Reserved block count: 427545
Free blocks: 7477473
Free inodes: 1972548
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1021
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Flex block group size: 16
Filesystem created: Sun May 30 01:01:43 2010
Last mount time: Fri Aug 6 08:25:46 2010
Last write time: Thu Aug 5 08:57:04 2010
Mount count: 24
Maximum mount count: 33
Last checked: Fri Jul 30 11:16:00 2010
Check interval: 15552000 (6 months)
Next check after: Wed Jan 26 11:16:00 2011
Lifetime writes: 19 GB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
First orphan inode: 1180043
Default directory hash: half_md4
Directory Hash Seed: 9f264420-8964-458c-99f1-5817fba0fd30
Journal backup: inode blocks
Journal features: journal_incompat_revoke
Journal size: 128M
Journal length: 32768
Journal sequence: 0x00026084
Journal start: 1
geekard@geekard-laptop:~$