svn commit: r195817 - head/usr.sbin/sysinstall

Randi Harper randi at freebsd.org
Wed Jul 22 16:02:23 UTC 2009


On Wed, Jul 22, 2009 at 3:28 AM, Alexander Motin <mav at freebsd.org> wrote:

> Juli Mallett wrote:
> > If you're interested in fixing this issue, you might want to look at
> > the need for compatibility names so that existing DD installs aren't
> > broken, and so DD installs work as-is without correcting libdisk's
> > expectations about slice/partition names for DD disks, which is pretty
> > invasive, too.  Not breaking new installs by not letting users install
> > broken systems is the absolute bare minimum approach, and given the
> > late date and the lack of movement on the kernel side, I've been
> > advocating for it for a while.
> >
> > See this message and others in the thread for some background:
> >
> > http://lists.freebsd.org/pipermail/freebsd-geom/2009-June/003567.html
>
> Sorry, ENOTIME. I am not advocating DD mode, it is really a hack. Offset
> 0 is just an easiest choice to align FS. Instead, I would really like
> sysinstall to honor real disk geometry instead of fake one. GEOM has
> support for reporting disk stripe size/offset and some GEOM classes
> already provide them. But sysinstall - the main tool which could benefit
> from it - ignores it.


This fix was intended - as Juli said - as a bare minimum approach until
sysinstall/libgeom happens. Using GEOM would fix a lot of problems with
sysinstall. I started poking at it a little while ago, but it's not going to
be a minor change, certainly not something that is going to make it in
anytime soon.

-- randi


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