linux文件恢复工具extundelete恢复被删除文件示例-linux-操作系统-壹聚教程网linux文件恢复工具extundelete恢复被删除文件示例extundelete是一个恢复工具了常用于linux系统中文件被删除之后的恢复软件了，下面小编来给各位整理一个extundelete工具恢复文件的例子。 安装extundelete
[root@xifenfei tmp]# bunzip2 extundelete-0.2.0.tar.bz2
[root@xifenfei tmp]# tar xvf extundelete-0.2.0.tar
extundelete-0.2.0/
extundelete-0.2.0/README
extundelete-0.2.0/ac.m4
extundelete-0.2.0/configure.ac
extundelete-0.2.0/aclocal.m4
extundelete-0.2.0/Makefile.am
extundelete-0.2.0/Makefile.in
extundelete-0.2.0/config.h.in
extundelete-0.2.0/configure
extundelete-0.2.0/compile
extundelete-0.2.0/depcomp
extundelete-0.2.0/install-sh
extundelete-0.2.0/missing
extundelete-0.2.0/LICENSE
extundelete-0.2.0/autogen.sh
extundelete-0.2.0/src/
extundelete-0.2.0/src/Makefile.am
extundelete-0.2.0/src/Makefile.in
extundelete-0.2.0/src/extundelete.cc
extundelete-0.2.0/src/block.c
extundelete-0.2.0/src/insertiono.cc
extundelete-0.2.0/src/block.h
extundelete-0.2.0/src/extundelete.h
extundelete-0.2.0/src/extundelete-priv.h
extundelete-0.2.0/src/jfs_compat.h
extundelete-0.2.0/src/kernel-jbd.h
[root@xifenfei tmp]# cd extundelete-0.2.0
[root@xifenfei extundelete-0.2.0]#& ./configure
Configuring extundelete 0.2.0
Writing generated files to disk
[root@xifenfei extundelete-0.2.0]# make && make install
make -s all-recursive
Making all in src
Making install in src
& /usr/bin/install -c 'extundelete' '/usr/local/bin/extundelete'
恢复操作命令
--umount或者read only 分区
&umount /dev/partition
&mount -o remount,ro /dev/partition
--恢复文件
xtundelete /dev/partition --restore-all
extundelete /dev/partition --restore-directory /backup/gnutool-delete
extundelete /dev/partition --restore-files /etc/passwd
--基于目录恢复
[root@xifenfei tmp]#extundelete /dev/sdb1& --restore-directory /u01/xifenfei
Loading filesystem metadata ... 160 groups loaded.
Loading journal descriptors ... 23 descriptors loaded.
Writing output to directory RECOVERED_FILES/
Failed to restore file /u01/xifenfei
Could not find correct inode number past inode 2.
[root@xifenfei tmp]# cd RECOVERED_FILES/
[root@xifenfei RECOVERED_FILES]# ll
--基于磁盘恢复
[root@xifenfei RECOVERED_FILES]#extundelete /dev/sdb1& --restore-all
Loading filesystem metadata ... 160 groups loaded.
Loading journal descriptors ... 23 descriptors loaded.
Writing output to directory RECOVERED_FILES/
Searching for recoverable inodes in directory / ...
4 recoverable inodes found.
Looking through the directory structure for deleted files ...
Failed to restore inode 1966081 to file RECOVERED_FILES/xifenfei:Inode does not correspond to a regular file.
Restored inode 1966082 to file RECOVERED_FILES/xifenfei/xff.txt
Failed to restore inode 1966083 to file RECOVERED_FILES/xifenfei/xff:Inode does not correspond to a regular file.
Restored inode 1966084 to file RECOVERED_FILES/xifenfei/xff/xff.txt132
0 recoverable inodes still lost.
[root@xifenfei RECOVERED_FILES]# ll
drwxr-xr-x 3 root root 4096 Aug 31 21:36 RECOVERED_FILES
[root@xifenfei RECOVERED_FILES]# cd RECOVERED_FILES/
[root@xifenfei RECOVERED_FILES]# ll
drwxr-xr-x 3 root root 4096 Aug 31 21:36 xifenfei
[root@xifenfei RECOVERED_FILES]# cd xifenfei/
[root@xifenfei xifenfei]# ll
drwxr-xr-x 2 root root& 4096 Aug 31 21:36 xff
-rw-r--r-- 1 root root 13231 Aug 31 21:36 xff.txt
[root@xifenfei xifenfei]# cd xff
[root@xifenfei xff]# ll
-rw-r--r-- 1 root root 13231 Aug 31 21:36 xff.txt132
--恢复成功
--基于文件恢复
[root@xifenfei xff]# extundelete /dev/sdb1& --restore-files /u01/xifenfei/xff.txt
Loading filesystem metadata ... 160 groups loaded.
Loading journal descriptors ... 23 descriptors loaded.
Writing output to directory RECOVERED_FILES/
[root@xifenfei xff]# cd RECOVERED_FILES/
[root@xifenfei RECOVERED_FILES]# ll
通过上述实验证明extundelete还是有很大的不完整性,基于整个磁盘的恢复功能较为强大,基于目录和文件的恢复还不够强大.不过该软件在很多时候还是有救火的功能,特别是当蛋筒的人员删除了的部分文件之时.
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CentOS系统中对Ext3文件系统删除后恢复
大家好，昨天有一同事在linux系统中用管理员用户(root)删除了另一用户的根目录(rm -rf &/home/tong),所有的文件无法找回了,我找了百度和谷哥终于把这个问题解决了,现在我把处理的过程写出来,希望对大家以后有帮助. & & & 1.安装软件(ext3grep依赖于系统的e2fsprogs三个软件包) & & & & &[root@redhat1 home]# mkdir /mnt/cdrom & & & &--创建光盘挂载目录 & & & & &[root@redhat1 home]# mount &/dev/cdrom &/mnt/cdrom & & & &--挂载光盘 & & & & & & &
& & & & &mount: block device /dev/sr0 is write-protected, mounting read-only & & & & &[root@redhat1 home]# vim /etc/yum.repos.d/base.repo & & --配置系统的本地源 & & & & & & & & & & & [base] & & & & & & & & & & & name=base & & & & & & & & & & & baseurl=file:///mnt/cdrom & & & & & & & & & & & enabled=1 & & & & & & & & & & & gpgcheck=1 & & & & & & & & & & & gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-REDHAT-6 & & & & &[root@redhat1 home]# yum install e2fs* & & & & & &--安装ext3grep软件的依赖包 & & & & &[root@redhat1 home]# rpm -aq |grep e2fs & & & &--检查软件包是否安装 & & & & &e2fsprogs-devel-1.41.12-14.el6.i686 & & & & &e2fsprogs-libs-1.41.12-14.el6.i686 & & & & &e2fsprogs-1.41.12-14.el6.i686 & & & & & [root@redhat1 home]#wget &/p/ext3grep/downloads/detail?name=ext3grep-0.10.2.tar.gz--下载ext3grep软件包 & & & & & [root@redhat1 home]# tar xvf ext3grep-0.10.2.tar.gz & & & & &--解压软件包 & & & & & [root@redhat1 home]# cd ext3grep-0.10.2 & & & & & --进入软件包 & & & & & [root@redhat1 ext3grep-0.10.2]# ./configure &--prefix=/usr/local/ext3grep && make && make install & --安装软件 & & & & & &[root@redhat1 ext3grep-0.10.2]# ll /usr/local/ &|grep ext3 & & &--查看软件安装成功 & & & & & drwxr-xr-x. &3 root &root &4096 Dec &2 17:24 ext3grep & & & & & [root@redhat1 ext3grep-0.10.2]#
& & & 2.新建个块设备,用块设备做测试.如果你用/home目录,home目录必须是一个单独的分区,在后面要进行挂载和卸载. & & & & & [root@redhat1 home]# dd if=/dev/zero of=123 bs=1M count=100 & &--在home目录下新建一个块设备123 & & & & &100+0 records in & & & & &100+0 records out & & & & & bytes (105 MB) copied, 0.634943 s, 165 MB/s & & & & &[root@redhat1 home]# mkfs.ext3 &123 & & & --格式化块设备 & & & & &mke2fs 1.41.12 (17-May-2010) & & & & 123 is not a block special device. & & & & &Proceed anyway? (y,n) y & & & & & & --输入y确定 & & & & &Filesystem label= & & & & &OS type: Linux & & & & &Block size=1024 (log=0) & & & & &Fragment size=1024 (log=0) & & & & &Stride=0 blocks, Stripe width=0 blocks & & & & &25688 inodes, 102400 blocks & & & & 5120 blocks (5.00%) reserved for the super user & & & & First data block=1 & & & & Maximum filesystem blocks= & & & &13 block groups & & & & 8192 blocks per group, 8192 fragments per group & & & & 1976 inodes per group & & & & Superblock backups stored on blocks:
& & & & , 4, 73729 & & & &Writing inode tables: done & & & & & & & & & & & & & & & & & &Creating journal (4096 blocks): done & & & &Writing superblocks and filesystem accounting information: done & & & &This filesystem will be automatically checked every 27 mounts or & & & &180 days, whichever comes first. &Use tune2fs -c or -i to override. & & & &[root@redhat1 home]#mkdir /mnt/123 & & & & & &--新建块设备挂载的目录
& & & &[root@redhat1 home]# mount 123 /mnt/123 &-o loop & & & &
--将块设备123挂载到/mnt/123中 & & & &[root@redhat1 home]# df -TH & & & & --查看目录是否挂载 & & & &Filesystem & &Type & & Size & Used &Avail Use% Mounted on & & & /dev/mapper/VolGroup-lv_root & & & & & & &ext4 & & &20G & 3.8G & &16G &20% /
& & & &tmpfs & & & &tmpfs & & 262M & & &0 & 262M & 0% /dev/shm & & & &/dev/sda1 & & ext4 & & 508M & &32M & 451M & 7% /boot & & & &df: `/mnt/cdrom': No such file or directory & & & &/dev/sr0 & iso9660 & & 3.2G & 3.2G & & &0 100% /mnt & & & &/home/123 & & ext3 & & 102M & 5.8M & &91M & 7% /mnt/123 & & & & &
&--设备已挂载 & & 3.拷贝文件,删除文件. & & & &[root@redhat1 home]# cp -a /etc/passwd /etc/shadow /etc/group /mnt/123/ & & & --将文件移动到设备中 & & & &[root@redhat1 home]# ll /mnt/123/ & & & &
--查看是否有文件 & & & &total 19 & & & &-rw-r--r--. 1 root root & 712 Dec &2 14:39 group & & & &drwx------. 2 root root 12288 Dec &4 11:14 lost+found & & & &-rw-r--r--. 1 root root &1509 Dec &2 14:39 passwd & & & &----------. 1 root root & 976 Dec &2 14:39 shadow & & & &[root@redhat1 home]# sync & & & & & --文件同步一下 & & & &[root@redhat1 home]# rm -rf /mnt/123/passwd /mnt/123/shadow & & & --删除文件 & & & &[root@redhat1 home]# sync & & & & & &--文件同步一下 & & & &[root@redhat1 home]# umount /mnt/123 & & &
--卸载设备 & & 4.恢复文件 & & & &[root@redhat1 home]# cd /usr/local/ext3grep/bin/ & & &
--进入ext3grep软件的目录 & & & &[root@redhat1 bin]# ./ext3grep --ls --inode 2 /home/123 & & & & & Running ext3grep version 0.10.2 & & & & WARNING: I don't know what EXT3_FEATURE_COMPAT_EXT_ATTR is. & & & & Number of groups: 13 & & & & Loading group metadata... done & & & & Minimum / maximum journal block: 49402 / 53515
& & & & Loading journal descriptors... sorting... done & & & &The oldest inode block that is still in the journal, appears to be from
= Wed Dec &4 11:21:57 2013 & & & & Number of descriptors in journal: 22; min / max sequence numbers: 2 / 5 & & & & Inode is Allocated & & & & Finding all blocks that might be directories.
& & & & D: block containing directory start, d: block containing more directory entries. & & & & Each plus represents a directory start that references the same inode as a directory start that we found previously. & & & & Searching group 0: DD & & & & Searching group 1:
& & & & Searching group 2:
& & & & Searching group 3:
& & & & Searching group 4:
& & & & Searching group 5:
& & & & Searching group 6: ++ & & & & Searching group 7:
& & & & Searching group 8:
& & & & Searching group 9:
& & & & Searching group 10:
& & & & Searching group 11:
& & & & Searching group 12:
& & & & Writing analysis so far to '123.ext3grep.stage1'. Delete that file if you want to do this stage again. & & & & Result of stage one: & & & & 2 inodes are referenced by one or more directory blocks, 2 of those inodes are still allocated. & & & &1 inodes are referenced by more than one directory block, 1 of those inodes is still allocated. & & & &0 blocks contain an extended directory. & & & &Result of stage two: & & & &2 of those inodes could be resolved because they are still allocated. & & & &All directory inodes are accounted for! & & & Writing analysis so far to '123.ext3grep.stage2'. Delete that file if you want to do this stage again.
& & & The first block of the directory is 508. & & & Inode 2 is directory &&. & & & Directory block 508: & & & & & .-- File type in dir_entry (r=regular file, d=directory, l=symlink) & & & & & | & & & & &.-- D: D R: Reallocated & & & Indx Next | &Inode & | Deletion time & & & & & & & & & & & &Mode & & & &File name & & & ==========+==========+----------------data-from-inode------+-----------+========= & & & 0 & &1 d & & & 2 & & & & & & & & & & & & & & & & & & & & drwxr-xr-x &. & & & 1 & &2 d & & & 2 & & & & & & & & & & & & & & & & & & & & drwxr-xr-x &.. & & & 2 & &5 d & & &11 & & & & & & & & & & & & & & & & & & & & drwx------ &lost+found & & & 3 & &4 r & & &12 &D
Wed Dec &4 11:24:53 2013 &rrw-r--r-- &passwd & & --D表示是删除的文件 & & & 4 & &5 r & & &13 &D
Wed Dec &4 11:24:53 2013 &r--------- &shadow & & & 5 &end r & & &14 & & & & & & & & & & & & & & & & & & & & rrw-r--r-- &group & & & [root@redhat1 bin]# ./ext3grep --restore-file passwd /home/123 & & & --restore-file用文件名来恢复文件 & & & Running ext3grep version 0.10.2 & & & WARNING: I don't know what EXT3_FEATURE_COMPAT_EXT_ATTR is. & & & Number of groups: 13 & & & Minimum / maximum journal block: 49402 / 53515
& & & Loading journal descriptors... sorting... done & & & The oldest inode block that is still in the journal, appears to be from
= Wed Dec &4 11:21:57 2013
& & & Number of descriptors in journal: 22; min / max sequence numbers: 2 / 5 & & & Writing output to directory RESTORED_FILES/
& & & Loading 123.ext3grep.stage2... done & & & Restoring passwd & & & & & & & & & &
--恢复passwd文件成功 & & & [root@redhat1 bin]# ./ext3grep --restore-inode 13 /home/123 & & & --用节点号(--restore-inode)来恢复文件 & & &Running ext3grep version 0.10.2 & & &WARNING: I don't know what EXT3_FEATURE_COMPAT_EXT_ATTR is. & & &Number of groups: 13 & & &Minimum / maximum journal block: 49402 / 53515 & & &Loading journal descriptors... sorting... done & & &The oldest inode block that is still in the journal, appears to be from
= Wed Dec &4 11:21:57 2013
& & &Number of descriptors in journal: 22; min / max sequence numbers: 2 / 5
& & &Restoring inode.13 & & & & & & & & &--恢复成功 & & &[root@redhat1 bin]# ll RESTORED_FILES/ & &
&--在自己当前目录下有个RESTORED_FILES目录存放恢复文件 & & &total 8 & & &----------. 1 root root &976 Dec &2 14:39 inode.13 & & &-rw-r--r--. 1 root root 1509 Dec &2 14:39 passwd & & &[root@redhat1 bin]# &注：Linux系统中对Ext4文件系统删除后恢复:http://./5953 & & 重点:1.ext3grep命令参考: & & & & & & & & & ext3grep /home/123 --dump-names & & & & & & &
--查看存在的和删除的文件 & & & & & & & & & ext3grep /home/123 --ls --inode 2 & & & & & & & & & & --详细查看存在的删除的文件(d 删除 r &存在) & & & & & & & & & ext3grep /home/123 --restore-file 文件名 &
& & &--恢复文件 & & & & & & & & & ext3grep /home/123 --restore-all & & & & & & & & & & & --恢复所有文件 & & & & & & & & & ext3grep /home/123 --restore-inode 节点号 &
--恢复指定节点号的文件 & & & & & & & & & ext3grep /home/123 --ls --inode 15809 & & & & &
--可以进入节点为15809的文件夹中,看是否有还有的是的文件 & & & & & & & & & ext3grep /home/1234--restore-file &目录/文件 &--还原目录下面的文件(进入目录 &ext3grep /home/1234 --ls --inode 目录节点)
& & & & &2.错误处理: & & & & &1)如果执行命令报错 & & & & & & & & & &[root@redhat1 bin]# ./ext3grep --ls --inode 2 /home/123 &
& & & & & & &解决方法:rm -rf 123.ext3grep.stage1 &123.ext3grep.stage2 &RESTORED_FILES就可以了
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rm -rf 的文件怎样找回来
删除了的文件怎样找回这样也能找回来啊，关注……
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Linux下利用ext3grep恢复被删除的文件
　　一个子目录一个可执行文件
　　现在删除ls文件和bin下面的zcat
　　[root@localhost ~]# rm /data/ls
　　rm: remove regular file `/data/ls’? y
　　[root@localhost ~]# rm /data/bin/zcat
　　rm: remove regular file `/data/bin/zcat’? y
　　[root@localhost ~]# ls -la /data/ls /data/bin/zcat
　　ls: /data/ls: No such file or directory
　　ls: /data/bin/zcat: No such file or directory
　　文件没有了然后我们来恢复：
　　首先必须umount掉误删除数据的分区：
　　[root@localhost ~]# umount /dev/mapper/VolGroup00-LogVol02
　　[root@localhost ~]# df -h
　　Filesystem Size Used Avail Use% Mounted on
　　/dev/mapper/VolGroup00-LogVol00
　　6.2G 1.8G 4.2G 30% /
　　/dev/sda1 99M 11M 83M 12% /boot
　　tmpfs 125M 0 125M 0% /dev/shm
　　确认卸载，然后使用ext3grep来恢复。
　　[root@localhost ~]# ext3grep& /dev/mapper/VolGroup00-LogVol02 --ls --inode 2
　　这里会创建扫描分区
　　[root@localhost ~]# ext3grep /dev/mapper/VolGroup00-LogVol02 --ls --inode 2
　　[root@localhost ~]# ext3grep /dev/mapper/VolGroup00-LogVol02 --restore-file ls
　　Running ext3grep version 0.6.0
　　WARNING: I don’t know what EXT3_FEATURE_COMPAT_EXT_ATTR is.
　　Number of groups: 8
　　Minimum / maximum journal block: 585 / 8787
　　Loading journal descriptors… sorting… done
　　Number of descriptors in journal: 58; min / max sequence numbers: 2 / 5
　　Loading VolGroup00-LogVol02.ext3grep.stage2… done
　　Restoring ls
　　[root@localhost ~]# ext3grep /dev/mapper/VolGroup00-LogVol02 --restore-file bin/ls
　　Running ext3grep version 0.6.0
　　WARNING: I don’t know what EXT3_FEATURE_COMPAT_EXT_ATTR is.
　　Number of groups: 8
　　Minimum / maximum journal block: 585 / 8787
　　Loading journal descriptors… sorting… done
　　Number of descriptors in journal: 58; min / max sequence numbers: 2 / 5
　　Loading VolGroup00-LogVol02.ext3grep.stage2… done
　　Restoring bin/ls
　　[root@localhost ~]# ls -la RESTORED_FILES/
　　total 124
　　drwxr-xr-x 3 root root 4096 Apr 21 18:01 .
　　drwxr-x― 5 root root 4096 Apr 21 17:55 ..
　　-rwxr-xr-x 1 root root 93560 Apr 21 17:48 ls
　　[root@localhost ~]# ext3grep /dev/mapper/VolGroup00-LogVol02 --restore-file bin/zcat
　　Running ext3grep version 0.6.0
　　WARNING: I don’t know what EXT3_FEATURE_COMPAT_EXT_ATTR is.
　　Number of groups: 8
　　Minimum / maximum journal block: 585 / 8787
　　Loading journal descriptors… sorting… done
　　Number of descriptors in journal: 58; min / max sequence numbers: 2 / 5
　　Loading VolGroup00-LogVol02.ext3grep.stage2… done
　　Restoring bin/zcat
　　[root@localhost ~]# ls -la RESTORED_FILES/bin/
　　total 188
　　drwxr-xr-x 2 root root 4096 Apr 21 18:01 .
　　drwxr-xr-x 3 root root 4096 Apr 21 18:01 ..
　　-rwxr-xr-x 1 root root 62136 Apr 21 17:48 zcat
　　看看都恢复在RESTORED_FILES目录下，大小也一样，这里RESTORED_FILES目录是执行ext3grep的当前目录下！
　　也可以使用：
　　ext3grep /termite/cc-disk --restore-all
　　恢复所有文件和目录，但是目录的话，如果删除时间较长，不一定能完全恢复，压缩文件一般都能恢复。
　　如果想详细的了解ext3grep，可以到它的的HOW TO页去看看：
　　1、删除/root/shell/hehe下的a文件
　　2、安装ext3grep-0.10.1.tar.gz&&&& ext3grep命令已经可以正常使用
　　3、ext3grep /dev/sda3& --ls --inode 2 创建扫描分区（不明白这步有什么用，请高手指点）
　　4、ext3grep /dev/sda3& --restore-file root/shell/hehe/a 恢复文件a
　　5、ext3grep /dev/sda3& --restore-inode 75631&& 根基inode&&&[2]&
【责编:coco】
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