From: Frank van Maarseveen <frankvm@frankvm.com>
To: glogow@fbihome.de
Cc: nfs@lists.sourceforge.net
Subject: Re: NFSroot using NFSv4?
Date: Sat, 28 Oct 2006 11:31:42 +0200 [thread overview]
Message-ID: <20061028093142.GA16741@janus> (raw)
In-Reply-To: <1161861313.454098c141626@stud.fbi.h-da.de>
On Thu, Oct 26, 2006 at 01:15:13PM +0200, glogow@fbihome.de wrote:
> Hi
>
> I'm looking for some information on using Linux kernel NFSroot with NFSv4.
>
> >From reading some documentation it seems that there are some additional daemons
> involved to mount NFSv4 exports on a client (idmapd, gssd (just for krb5?)).
>
> Is it possible to run NFSv4 as a read-only NFSroot, without an initrd /
> initramfs, which would otherwise start these deamons and use a NFSv4 enabled
> mount and a pivot_root?
The proper way to do that is actually to put an "/init" script in
initrd. The kernel won't mount a root filesystem (i.e. no root= parameter)
and leaves it up to the early userspace /init script to setup the root
mount, e.g. /newroot. The last step for /init (being pid 1) is a
exec chroot /newroot /sbin/init <args>
This can handle much more types of root mounts and avoids the need for
an in-kernel nfsroot.
--
Frank
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prev parent reply other threads:[~2006-10-28 9:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-26 11:15 NFSroot using NFSv4? glogow
2006-10-27 5:48 ` Trond Myklebust
2006-10-28 9:31 ` Frank van Maarseveen [this message]
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