On Mon, Oct 16, 2006 at 08:02:27AM +0200, you [Andries Brouwer] wrote:
> On Mon, Oct 16, 2006 at 09:50:15AM +1000, Neil Brown wrote:
> > On Sunday October 15, [email protected] wrote:
>
> > > I wonder if there's ever a change the kernel partition detection code could
> > > _write_ on the disk, even when there's really no partition table?
> >
> > No, kernel partition detection never writes.
>
> There is something else that writes, however, that I have gotten complaints about.
> (But I have not investigated.)
> People doing forensics take a copy of a disk and want to preserve
> that copy as-is, never changing a single bit, only looking at it.
> But it is reported that also when a partition is mounted read-only,
> the journaling code of ext3 will write to the journal.
Yes, that's (sort of) known. As in "mentioned on lkml" - perhaps even in
some documentation.
In this case, the fs was ext2, though, and the problem occurred even when
the fs was never mounted and the raid device was never started.
-- v --
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