On Wed, May 13, 2009 at 9:44 AM, Manish Katiyar <mkatiyar@xxxxxxxxx> wrote: > On Wed, May 13, 2009 at 9:41 AM, ranjith kannikara > <ranjithkannikara@xxxxxxxxx> wrote: >> On Wed, May 13, 2009 at 1:33 AM, Andreas Dilger <adilger@xxxxxxx> wrote: >>> On May 12, 2009 21:32 +0530, ranjith kannikara wrote: >>>> On Tue, May 12, 2009 at 9:26 PM, Bryan Donlan <bdonlan@xxxxxxxxx> wrote: >>>> > On Tue, May 12, 2009 at 11:47 AM, ranjith kannikara >>>> > <ranjithkannikara@xxxxxxxxx> wrote: >>>> >> I am a computer science engineering student. We have started a project >>>> >> to make an application to recover deleted files from an ext3 >>>> >> filesystem. For that we have a doubt . Can we edit the inode content? >>>> >> ie the recovery will be robust if we could edit the inode contents and >>>> >> give the pointer address manually or through a code. The inode is >>>> >> being created in the kernel mode and is it possible to edit those >>>> >> contents if the code is allowed to have the kernel mode permissions..? >>>> >>>> But we would like to know whether it is possible to edit the inode >>>> because it will make the recovery easy and robust. ie he know the >>>> details of the inode of the file which had been deleted is it possible >>>> to edit the content of that inode with the pointers of the deleted >>>> file.? >>> >>> Are you asking whether it is possible to modify the on-disk structure >>> of the ext3 inode? Generally that is NOT allowed because it will of >>> course break all existing filesystems if not done with extreme care. >>> >>> Cheers, Andreas >>> -- >>> Andreas Dilger >>> Sr. Staff Engineer, Lustre Group >>> Sun Microsystems of Canada, Inc. >>> >>> >> Hi, >> Actually I was asking the same. whether it is possible to edit the >> inode content of a disk or the image of a disk. Did you mean that it >> is not possible at all. Is there any method to edit the inode content >> and use the edited inode for a file, If we can ensure high care. >> because such a method will be the most robust one in the recovery of >> deleted file. > > Sorry , but it is still not clear to me whether you are trying to > change the on-disk structure of the inode or just change the ondisk > *contents* of some deleted inode to recover it. Can you give an > example of what you are trying to do ? > > Thanks - > Manish > Ok, I will I want to edit the contects of some deleted inode to recover the file. ie I have a file 'foo' with inode 123. and the inode have the direct and indirect data pointers in it. Now i deleted the file and is trying to recover it. I somehow could get what was the content,which is the pointers in the inode. Now I would like to edit the inode 123 so that it will contain the above pointers and will be the same deleted file itself. I hope now its clear and you can help me. Regards Ranju. > > >> >> Regards >> ranju. >> >> -- >> http://www.ranjithkannikara.blogspot.com/ >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-ext4" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > > > -- > Thanks - > Manish > -- http://www.ranjithkannikara.blogspot.com/ -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
