ext3文件恢复【我实验过了】

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ext3文件恢复【我实验过了】

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   <td align="left"> <span>2 个帖子<span>&nbsp;-&nbsp;<a href="http://groups.google.com/group/xiyoulinux/browse_thread/thread/b0b143281719ac23?pli=1#" rel="nofollow">全部隐藏</a></span> <span>&nbsp;-&nbsp;<a href="http://groups.google.com/group/xiyoulinux/browse_thread/thread/b0b143281719ac23?pli=1#" rel="nofollow">Translate all to </a><a href="http://groups.google.com/group/xiyoulinux/browse_thread/thread/b0b143281719ac23?pli=1#" rel="nofollow">Translated (View all originals)</a></span> </span> </td> 
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         <td><strong>验证：</strong></td> 
         <td colspan="2"> 出于验证的需要，请键入您在下图中看到的字符或点击辅助功能图标后所听到的数字。 <img src="http://groups.google.com/groups/img/dot_clear.gif" alt="" width="200" height="70">  <img src="http://groups.google.com/groups/img/accessibility.gif" alt="听清并键入您听到的数字"> </td> 
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         <td><span> <span style="color: #00681c;">李磊</span> &nbsp; </span></td> 
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         <td align="right"> <span style="background-color: white;"> <span>&nbsp;<span>更多选项</span></span> <span> 2月1日, 上午3时47分 </span> </span> </td> 
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           发件人： 
          <strong>李磊 &lt;lilei1<a href="http://groups.google.com/groups/unlock?_done=/group/xiyoulinux/browse_thread/thread/b0b143281719ac23%3Fpli%3D1&amp;msg=2017eb84b0bc2215" rel="nofollow">...</a>@gmail.com&gt;</strong> 
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           日期： 
          <strong>Sun, 1 Feb 2009 16:47:09 +0800</strong> 
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           当地时间： 
          <strong>2009年2月1日(星期日) 上午3时47分</strong> 
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           主题： 
          <strong>ext3文件恢复【我实验过了】</strong> 
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       <a rel="nofollow"></a>原文载于： 
       <a href="http://huaidan.org/archives/1913.html" rel="nofollow">http://huaidan.org/archives/1913.html</a> 
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       <p>工作中遇见了，查了网上文章，发现没几个实际能通过的，实在是怒。自己找了软件做了一次实战操作，基本可以保证稳定恢复。 <br> 测试环境 <br> [root@localhost ~]# uname -a <br> Linux localhost.localdomain 2.6.18-8.el5 #1 SMP Fri Jan 26 14:15:21 <br> EST 2007 i686 i686 i386 GNU/Linux</p> 
       <p>所需的相关库 <br> [root@localhost ~]# rpm -qa |grep e2fsprogs <br> e2fsprogs-libs-1.39-8.el5 <br> e2fsprogs-1.39-8.el5 <br> e2fsprogs-devel-1.39-8.el5 <br> 分区情况 <br> [root@localhost ~]# df -h <br> Filesystem Size Used Avail Use% Mounted on <br> /dev/mapper/VolGroup00-LogVol00 <br> 6.2G 1.8G 4.2G 30% / <br> /dev/sda1 99M 11M 83M 12% /boot <br> /dev/mapper/VolGroup00-LogVol02 <br> 1008M 34M 924M 4% /data <br> tmpfs 125M 0 125M 0% /dev/shm <br> 需要软件 <br> <a href="http://code.google.com/p/ext3grep/downloads/list" rel="nofollow">http://code.google.com/p/ext3grep/downloads/list</a> <br> 先下载软件 <br> [root@localhost ~]# cd /root/src/ <br> [root@localhost src]# wget <br> <a href="http://ext3grep.googlecode.com/files/ext3grep-0.6.0.tar.gz" rel="nofollow">http://ext3grep.googlecode.com/files/ext3grep-0.6.0.tar.gz</a> src <br> [root@localhost src]# ls <br> ext3grep-0.6.0.tar.gz <br> [root@localhost src]# tar xfvz ext3grep-0.6.0.tar.gz <br> [root@localhost ext3grep-0.6.0]# ./configure <br> [root@localhost ext3grep-0.6.0]# make install <br> [root@localhost ext3grep-0.6.0]# ext3grep <br> Running ext3grep version 0.6.0 <br> 编译然后测试可以使用了，一切做好了以后开始我们的恢复过程。 <br> 我的目录是/data分区，我先格式化了分区，我放一个文件在根目录下和一个子目录下的文件。 <br> /dev/mapper/VolGroup00-LogVol02 1008M 34M 924M 4% /data <br> 拷贝点文件过去 <br> [root@localhost ~]# ]# cp /bin/ls /data/ <br> [root@localhost ~]# ]# cp -rf /bin /data/ <br> [root@localhost ~]# ]# ls -la /data/ <br> total 136 <br> drwxr-xr-x 4 root root 4096 Apr 21 17:37 . <br> drwxr-xr-x 25 root root 4096 Apr 21 17:11 .. <br> drwxr-xr-x 2 root root 4096 Apr 21 17:37 bin <br> drwx------ 2 root root 16384 Apr 21 17:15 lost+found <br> -rwxr-xr-x 1 root root 93560 Apr 21 17:37 ls <br> [root@localhost ~]# <br> 一个子目录一个可执行文件 <br> 现在删除ls文件和bin下面的zcat <br> [root@localhost ~]# rm /data/ls <br> rm: remove regular file `/data/ls'? y <br> [root@localhost ~]# rm /data/bin/zcat <br> rm: remove regular file `/data/bin/zcat'? y <br> [root@localhost ~]# ls -la /data/ls /data/bin/zcat <br> ls: /data/ls: No such file or directory <br> ls: /data/bin/zcat: No such file or directory <br> 文件没有了然后我们来恢复 <br> 首先umount掉分区 <br> [root@localhost ~]# umount /dev/mapper/VolGroup00-LogVol02 <br> [root@localhost ~]# df -h <br> Filesystem Size Used Avail Use% Mounted on <br> /dev/mapper/VolGroup00-LogVol00 <br> 6.2G 1.8G 4.2G 30% / <br> /dev/sda1 99M 11M 83M 12% /boot <br> tmpfs 125M 0 125M 0% /dev/shm <br> 确认卸载，然后使用ext3grep来恢复。 <br> [root@localhost ~]# ext3grep/dev/mapper/VolGroup00-LogVol02 --ls --inode 2 <br> 这里会创建扫描分区 <br> [root@localhost ~]# ext3grep /dev/mapper/VolGroup00-LogVol02 --ls --inode 2 <br> [root@localhost ~]# ext3grep /dev/mapper/VolGroup00-LogVol02 --restore-file ls <br> Running ext3grep version 0.6.0 <br> WARNING: I don't know what EXT3_FEATURE_COMPAT_EXT_ATTR is. <br> Number of groups: 8 <br> Minimum / maximum journal block: 585 / 8787 <br> Loading journal descriptors... sorting... done <br> Number of descriptors in journal: 58; min / max sequence numbers: 2 / 5 <br> Loading VolGroup00-LogVol02.ext3grep.stage2... done <br> Restoring ls <br> [root@localhost ~]# ext3grep /dev/mapper/VolGroup00-LogVol02 <br> --restore-file bin/ls <br> Running ext3grep version 0.6.0 <br> WARNING: I don't know what EXT3_FEATURE_COMPAT_EXT_ATTR is. <br> Number of groups: 8 <br> Minimum / maximum journal block: 585 / 8787 <br> Loading journal descriptors... sorting... done <br> Number of descriptors in journal: 58; min / max sequence numbers: 2 / 5 <br> Loading VolGroup00-LogVol02.ext3grep.stage2... done <br> Restoring bin/ls <br> [root@localhost ~]# ls -la RESTORED_FILES/ <br> total 124 <br> drwxr-xr-x 3 root root 4096 Apr 21 18:01 . <br> drwxr-x--- 5 root root 4096 Apr 21 17:55 .. <br> -rwxr-xr-x 1 root root 93560 Apr 21 17:48 ls <br> [root@localhost ~]# ext3grep /dev/mapper/VolGroup00-LogVol02 <br> --restore-file bin/zcat <br> Running ext3grep version 0.6.0 <br> WARNING: I don't know what EXT3_FEATURE_COMPAT_EXT_ATTR is. <br> Number of groups: 8 <br> Minimum / maximum journal block: 585 / 8787 <br> Loading journal descriptors... sorting... done <br> Number of descriptors in journal: 58; min / max sequence numbers: 2 / 5 <br> Loading VolGroup00-LogVol02.ext3grep.stage2... done <br> Restoring bin/zcat <br> [root@localhost ~]# ls -la RESTORED_FILES/bin/ <br> total 188 <br> drwxr-xr-x 2 root root 4096 Apr 21 18:01 . <br> drwxr-xr-x 3 root root 4096 Apr 21 18:01 .. <br> -rwxr-xr-x 1 root root 62136 Apr 21 17:48 zcat <br> 看看都恢复在RESTORED_FILES目录下，大小也一样 <br> 参考资料 <br> <a href="http://www.xs4all.nl/%7Ecarlo17/howto/undelete_ext3.html" rel="nofollow">http://www.xs4all.nl/~carlo17/howto/undelete_ext3.html</a></p> 
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