Subject: Re: kern/29211: Old partition name limits on kernel "config" directive
To: None <gnats-bugs@netbsd.org>
From: Quentin Garnier <cube@cubidou.net>
List: netbsd-bugs
Date: 02/03/2005 12:08:07
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On Thu, Feb 03, 2005 at 09:33:00AM +0000, spam@pianocast.net wrote:
> >Number:         29211
> >Category:       kern
> >Synopsis:       Old partition name limits on kernel "config" directive
[...]
> >Description:
>   Under a recent i386 netbsd-2 checkout (and maybe under earlier RELs,
> although I happened to notice it under 2.0) the name limit on
> partitions in the
>=20
>     config <exec_name> root on <rootdev> [stuff]
>=20
> directive of kernel config files doesn't appear to support the updated
> 16 partition-per-drive limit.  In other words, the statement
>=20
>     config	netbsd	root on sd0o
>=20
> results in an error ("invalid root device name `sd0o'"), whereas if
> one sets up sd0h with geometry identical to that of sd0o, this one,
>=20
>     config	netbsd	root on sd0h
>=20
> will succeed.  I'm guessing that it's because h is in the first 8
> partitions and o is not?

This is because config(8) doesn't know about the kludgy way we assign
minors to partitions on i386.

A workaround would be to do

config netbsd root on major 4 minor 524294

Right now I don't see a clean way to correct that issue.  Introducing
MD code in config(8) would be gross.

--=20
Quentin Garnier - cube@cubidou.net - cube@NetBSD.org
"When I find the controls, I'll go where I like, I'll know where I want
to be, but maybe for now I'll stay right here on a silent sea."
KT Tunstall, Silent Sea, Eye to the Telescope, 2004.

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