On Tue, May 12, 2009 at 9:32 PM, ranjith kannikara <ranjithkannikara@xxxxxxxxx> 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: >>> Hi, >>> 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? Hi, yes you can. See the debugfs tool which comes with e2fsprogs. It allows you to open a filesystem and then change the attributes of an inode. It also has libext2fs which you can use to write programs through its exported APIs. Hope that helps - Manish >>> 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..? >> >> You'd probably be best off doing this in userspace, with the >> filesystem unmounted. > Of course we are doing it from another filesystem. ie only after > unmounting the filesystem which is being worked on. in some case we > make image of the filesystem to ensure security of data. >> Generally speaking, don't attempt to alter the filesystem from >> userspace while it is mounted. >> > 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.? > 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 -- 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
