Date: Mon, 25 Jan 1999 21:09:34 -0800 From: Bill Trost <trost@cloud.rain.com> To: current@FreeBSD.ORG Subject: Re: beginnings of a diskless boot sequence being committed Message-ID: <15510.917327374@grey.cloud.rain.com> In-Reply-To: Your message of Mon, 25 Jan 1999 17:04:14 %2B0100. <199901251604.RAA27194@labinfo.iet.unipi.it> References: <199901251604.RAA27194@labinfo.iet.unipi.it>
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Luigi Rizzo writes:
> :I haven't seen how you suggest to build&populate the MFS filesystems --
...
> There isn't much to build. Most of the MFS filesystems start
> out empty.
ok here we use a different approach. For simplicity I am using a
single MFS system with all the things you put in /var, and including
/var/dev and /var/etc (with /dev -> /var/dev and /etc -> /var/etc on
the diskless machine).
I have a wacky idea in this vein that I want to pursue sometime --
instead of pushing off lots of symlinks for the various writable
portions of the read-only root directory (which strikes as a bit odd in
itself), I was considering union-mounting an MFS filesystem directly
over the read-only root partition. The advantage of this approach
is that you do not have to know ahead of time what portions of the
read-only partition need to be writable -- files get copied into the MFS
partition only if and when they are written to.
Thoughts? It seems like it would be feasible, and it might even be
possible to do it directly in /etc/fstab without having to put any sort
of cleverness in /etc/rc.
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