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Date: Wed, 7 Mar 2007 23:35:55 -0500
To: des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=)
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From: Mike Meyer <mwm-keyword-freebsdhackers2.e313df@mired.org>
Cc: freebsd-hackers@freebsd.org, Steven Hartland <killing@multiplay.co.uk>
Subject: Re: NFS based /usr prevents normal startup due to slow net init
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In <86lki8u1al.fsf@dwp.des.no>, Dag-Erling Sm=F8rgrav <des@des.no> type=
d:
> Mike Meyer <mwm-keyword-freebsdhackers2.e313df@mired.org> writes:
> > Steven Hartland <killing@multiplay.co.uk> writes:
> > > Another observation from my recent dealings with using
> > > NFS based /usr is that the remote critical mounts via
> > > nfs dont always give the network enough time to
> > > initialise before running. The first error displayed
> > > is:
> > > Mounting NFS file systems:mount_nfs: nfs1: hostname nor servname =
provided, or not known
> > > [...]
> > How about an extra flag in your fstab?  The default behavior for
> > mount_nfs is to keep retrying until the mount succeeds.
>=20
> No, it will fail immediately (as seen above) if it can't resolve the
> server name.  The only way to fix this is to modify mount_nfs to slee=
p
> and retry in such cases.  The *current* sleep-and-retry code is in th=
e
> NFS mount code in the kernel, which doesn't come into play until afte=
r
> DNS lookup.

In that case, there's a bug in the mount_nfs man page, which just says
that it keeps retrying until it succeeds. PR #110062

=09<mike
--=20
Mike Meyer <mwm@mired.org>=09=09http://www.mired.org/consulting.html
Independent Network/Unix/Perforce consultant, email for more informatio=
n.