Le 20/09/2016 à 19:54, Chris Murphy a écrit : > On Tue, Sep 20, 2016 at 11:03 AM, Alexandre Poux <pums974@xxxxxxxxx> wrote: > >> If I wanted to try to edit my partitions with an hex editor, where would >> I find infos on how to do that ? >> I really don't want to go this way, but if this is relatively simple, it >> may be worth to try. > Simple is relative. First you'd need > https://btrfs.wiki.kernel.org/index.php/On-disk_Format to get some > understanding of where things are to edit, and then btrfs-map-logical > to convert btrfs logical addresses to physical device and sector to > know what to edit. > > I'd call it distinctly non-trivial and very tedious. > OK, another idea: would it be possible to trick btrfs with a manufactured file that the disk is present while it isn't ? I mean, looking for a few minutes on the hexdump of my trivial test partition, header of members of btrfs array seems very alike. So maybe, I can make a file wich would have enough header to make btrfs believe that this is my device, and then remove it as usual.... looks like a long shot, but it doesn't hurt to ask.... -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
