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From: Eric Sandeen <sandeen@sandeen.net>
To: "chen.szu.fan" <chen.szu.fan@gmail.com>
Cc: linux-xfs@oss.sgi.com
Subject: Re: see the file content by xfs_db
Date: Thu, 16 May 2013 20:12:49 -0500	[thread overview]
Message-ID: <51958411.70008@sandeen.net> (raw)
In-Reply-To: <loom.20130516T084318-878@post.gmane.org>

On 5/16/13 1:48 AM, chen.szu.fan wrote:
> is it possible to see the file content by xfs_db? and how-to?

you can get the file mapping & dump file blocks one at a time, anyway:

[root@bp-05 ~]# mount /dev/sdb4 /mnt/test
[root@bp-05 ~]# echo "mydata" > /mnt/test/testfile
[root@bp-05 ~]# ls -i /mnt/test/testfile
53573991 /mnt/test/testfile
[root@bp-05 ~]# umount /dev/sdb4


[root@bp-05 ~]# xfs_db /dev/sdb4
xfs_db> inode 53573991
xfs_db> p u.bmx
u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,3348403,1,0]
xfs_db> fsblock 3348403
xfs_db> type text
xfs_db> p
000:  6d 79 64 61 74 61 0a 00 00 00 00 00 00 00 00 00  mydata..........
010:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<snip>

-Eric

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      reply	other threads:[~2013-05-17  1:12 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-16  6:48 see the file content by xfs_db chen.szu.fan
2013-05-17  1:12 ` Eric Sandeen [this message]

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