[Parted-maintainers] Bug#245753: Bug #245753 - overlapping partitions are not an error with BSD disklabels

[Steve Langasek]

On Tue, Jan 15, 2013 at 02:53:44PM -0500, Phillip Susi wrote:
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> On 1/15/2013 2:43 PM, Steve Langasek wrote:
> > They are mapped at runtime; essentially you would see /dev/sda1
> > (/dev/sda3? whatever) as an alias to /dev/sda.
> 
> Linux won't allow this, so the best thing parted will be able to do is
> ignore the partition and you won't actually get the runtime mapping.

I'm not sure why Linux wouldn't allow it, but it wouldn't really matter
anyway; Linux doesn't need to access this partition, it's the other OS that
would need to.

> >> How can I reproduce this?

> > Not easily at all.  You'd need hardware of a particular
> > architecture, and a copy of a proprietary Unix, to natively create
> > a relevant disklabel or to validate that the disklabel is
> > compatible.

> Is there some sort of flag in the disklabel that indicates this is
> such a partition?

Not that I recall.  It's been many years since I've seen such a disk.

> Or should this bug just be closed?

Doesn't matter to me.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
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