Date: Thu, 26 Sep 2002 19:50:36 +0100 From: Josef Karthauser <joe@FreeBSD.org> To: Bruce M Simpson <bms@spc.org>, Julian Elischer <julian@elischer.org>, Mark Santcroos <marks@ripe.net>, freebsd-hackers@FreeBSD.ORG Subject: Re: vmware reads disk on non-sector boundary Message-ID: <20020926185036.GB10421@genius.tao.org.uk> In-Reply-To: <20020926085237.GA2645@genius.tao.org.uk> References: <20020925173453.GA1347@laptop.6bone.nl> <Pine.BSF.4.21.0209251114130.46717-100000@InterJet.elischer.org> <20020925203930.GB25571@genius.tao.org.uk> <20020926084733.GA26352@spc.org> <20020926085237.GA2645@genius.tao.org.uk>
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On Thu, Sep 26, 2002 at 09:52:37AM +0100, Josef Karthauser wrote:
> On Thu, Sep 26, 2002 at 09:47:33AM +0100, Bruce M Simpson wrote:
> > On Wed, Sep 25, 2002 at 09:39:30PM +0100, Josef Karthauser wrote:
> > > I thought that we hacked around this in the linuxulator 18 months ago
> > > by transparently converting block calls into character calls behind t=
he
> > > scenes. Either this has been removed or something else is wrong.
> >=20
> > This isn't the case for me on -STABLE. I had to create block devices for
> > raw disks to work.
> >=20
>=20
> Yes that needs to be done one -stable. The hack I was talking about was
> for -current only where block devices don't exist anymore.
>=20
It took a while to find, but this is the hack I was referring to:
Take a look at /sys/compat/linux/linux_stats.c,
revision 1.29
date: 2001/01/14 23:33:50; author: joe; state: Exp; lines: +18 -11
Instead of hard coding the major numbers for IDE and SCSI disks
look in the device's cdevsw for the D_DISK flag.
----------------------------
revision 1.28
date: 2000/12/29 00:44:42; author: paul; state: Exp; lines: +15 -1
Map FreeBSD character device hard disks to Linux block device hard
disks.
This fixes the problem with VMWARE not being able to use raw disks.
Joe
--=20
"As far as the laws of mathematics refer to reality, they are not certain;
and as far as they are certain, they do not refer to reality." - Albert
Einstein, 1921
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