From: David Bryson <david@tsumego.com>
To: Pascal Schmidt <der.eremit@email.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: circular pivot_root, is this possible ?
Date: Tue, 2 Mar 2004 10:47:58 -0800 [thread overview]
Message-ID: <20040302184758.GA10082@heliosphan.futuretel.com> (raw)
In-Reply-To: <E1AyCUQ-00004T-N0@localhost>
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On Tue, Mar 02, 2004 at 05:11:26PM +0100 or thereabouts, Pascal Schmidt wrote:
> On Tue, 02 Mar 2004 03:40:09 +0100, you wrote in linux.kernel:
>
> > Say the system needs an upgrade.... I want to
> >
> > 1) pivot_root _back out_ of the tmpfs, onto the initrd again
> > 2) obtain via network a new sys.img, write it to the flash
> > 3) wipe tmpfs, and recopy the contents of the new sys.img into memory
> > 4) pivot_root back into the tmpfs and start the higher level system
> > again
>
> How about using a second, small tmpfs for / under/over which the tmpfs
> for the full system can be mounted and umounted at will?
>
Are you suggesing something like:
* tmfs1 contains 'basic functionality'
* tmpfs2 is mounted somewhere on tmpfs1
I still fail to see how this will let one restart/position init based
on which filesystem/director is root.
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next prev parent reply other threads:[~2004-03-02 18:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1v7Zf-5EG-5@gated-at.bofh.it>
2004-03-02 16:11 ` circular pivot_root, is this possible ? Pascal Schmidt
2004-03-02 18:47 ` David Bryson [this message]
2004-03-02 2:30 David Bryson
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