RE: Filesystem type survives formatting in debian installer?
> >this sounds like a bug in mke2fs to me, it is not cleaning up
> the sectors
> >before its header and as a result the partition gets misrecognised.
> I think it's there because some arches and some partitioning schemes
> actually have real data in the first sector which can't be overwritten
> or bad things happen.
> sparc is one such example.
right so why are lvm and this crypto thing storing stuff there then?
maybe the answer is to write some kind of partition cleaner that is run before formatting a partition that looks for the signatures of things that don't leave a gap (lvm and this crypto thing, possiblly others) and if it finds them blow them away before formatting.