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? > xfsdump/xfsrestore can't do the recovery. >> 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. Thanks for your advice. I will try the tools. I also found the article about how to create and mount image. https://midnightprogrammer.net/post/create-mount-and-unmount-img-files-in-ubuntu/ The article says, the image file created by dd should formated in ubuntu. For Centos, should I format the image file before mounting it as virtual read-only disk? Thanks! Regards andrew At 2020-09-16 21:32:49, "Simon Matter" <simon.matter at invoca.ch> wrote: >> 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 > >_______________________________________________ >CentOS mailing list >CentOS at centos.org >https://lists.centos.org/mailman/listinfo/centos