> Hi, > > > Thanks for your reply. The file system type is xfs. And I found > xfsdump/xfsrestore can undo the remove. Hm, are you sure you can use xfsdump/xfsrestore for this? > > > I use dd to copy the partition as one image file. How do I mount the image > as read-only device? Then I can try to recover the deleted files/directory > anytime. Mount the image with the option '-o ro' as read-only. Depending on the kind of data you removed you could use 'testdisk' or 'photorec' to recover. Make sure to only use a copied image to test. Regards, Simon