实验题·ext文件恢复

实验环境

CentOS 7.6

需求分析

挂载一个新的磁盘来实现xfs文件恢复

实验步骤

[root@localhost ~]# fdisk /dev/sdb #进行分区 [root@localhost ~]# mkfs.xfs /dev/sdb1 #格式化成xfs格式的磁盘 [root@localhost ~]# mount /dev/sdb1 /opt #挂载磁盘 [root@localhost ~]# cd /opt #进入目录里面创建一些文件来进行模拟实验 [root@localhost ~]# yum-y install xfsdump #安装一下对应的软件 [root@localhost ~]# xfsdump -f /mnt/xfs.bak /dev/sdb1 xfsdump: using file dump (drive_simple) strategy xfsdump: version 3.1.7 (dump format 3.0) - type ^C for status and control ============================= dump label dialog ============================== please enter label for this dump session (timeout in 300 sec) -> xfs.bak session label entered: "xfs.bak" --------------------------------- end dialog --------------------------------- xfsdump: level 0 dump of localhost.localdomain:/opt xfsdump: dump date: Sat Jul 4 15:01:45 2020 xfsdump: session id: bbb69541-f6dd-4b0e-9122-e7f788853fca xfsdump: session label: "xfs.bak" xfsdump: ino map phase 1: constructing initial dump list xfsdump: ino map phase 2: skipping (no pruning necessary) xfsdump: ino map phase 3: skipping (only one dump stream) xfsdump: ino map construction complete xfsdump: estimated dump size: 21760 bytes xfsdump: /var/lib/xfsdump/inventory created ============================= media label dialog ============================= please enter label for media in drive 0 (timeout in 300 sec) -> sdb1 media label entered: "sdb1" --------------------------------- end dialog --------------------------------- xfsdump: creating dump session media file 0 (media 0, file 0) xfsdump: dumping ino map xfsdump: dumping directories xfsdump: dumping non-directory files xfsdump: ending media file xfsdump: media file size 22952 bytes xfsdump: dump size (non-dir files) : 0 bytes xfsdump: dump complete: 44 seconds elapsed xfsdump: Dump Summary: xfsdump: stream 0 /mnt/xfs.bak OK (success) xfsdump: Dump Status: SUCCESS [root@localhost ~]# rm -rf /opt/* #模拟删除/opt目录下的文件 [root@localhost ~]# xfsrestore -f /mnt/xfs.bak /opt #进行恢复