From owner-freebsd-hackers@FreeBSD.ORG  Tue Apr 19 19:30:57 2005
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From: "Emmanuel Chriqui" <emmanuel.chriqui@laposte.net>
To: "'Marc Olzheim'" <marcolz@stack.nl>
Date: Tue, 19 Apr 2005 21:31:10 +0200
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Subject: RE: PXEBOOT/TFTPBOOT + big MD_ROOT problem
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> -----Message d'origine-----
> De=A0: owner-freebsd-hackers@freebsd.org [mailto:owner-freebsd-
> hackers@freebsd.org] De la part de Marc Olzheim
> Envoy=E9=A0: mardi 19 avril 2005 21:06
> =C0=A0: Emmanuel Chriqui
> Cc=A0: freebsd-hackers@freebsd.org; freebsd-stable@freebsd.org
> Objet=A0: Re: PXEBOOT/TFTPBOOT + big MD_ROOT problem
>=20
> On Tue, Apr 19, 2005 at 09:52:07AM +0200, Emmanuel Chriqui wrote:
> > Hi,
> >
> > I'm trying to make very big MD_ROOT (300MB) sent using =
PXEBOOT+TFTPBOOT.
> No
> > NFS.
>=20
> Any reasons for not using NFS ?
Yes. Mainly : similar system already working great under linux for two
years, NFS heavy traffic problems making data loss so difficult to solve =
(at
least under Linux), cheap memory, better server independence when he got =
his
system (tftp server shut down after the client servers got theirs =
images).

>=20
> > I use i386/5.4RC2/TFTPD/PXEBOOT+TFTPBOOT .
> > (same pb with a 5.3).
> >
> > Am I missing something obvious?
>=20
> I'm not sure. tftp itself is able to handle 32MB+ files, but maybe the
> loader isn't.
TFTP linux->FreeBSD, FreeBsd->FreeBSD, FreeBSD->Linux ok for 500MB, 1GB,
1,5GB, works ok (well... at least on our servers..).

>=20
> A workaround, no using NFS, could be to tftp a second filesystem image
> on boot and mount that from the root filesyste
This is roughly how it works under our linux servers, webservers, etc... =
I
was hoping to avoid that approach (less work.. less maintenance..).=20

Am I the only one on earth to need a big MFSROOT ???=20
:)

Emmanuel.