Date: Sat, 14 Feb 2004 11:09:00 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Gary Kline <kline@thought.org> Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: MFS on new server. Message-ID: <20040214110900.GA64281@happy-idiot-talk.infracaninophile.co.uk> In-Reply-To: <20040214104818.GA59107@tao.thought.org> References: <20040214104818.GA59107@tao.thought.org>
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On Sat, Feb 14, 2004 at 02:48:18AM -0800, Gary Kline wrote:
> When my new DNS server is finished I'm planning to create
> around a 512MB memory file system. An Onlamp article gives
> some basics. But how would I cp (say), gcc, sendmail, and
> bind to this new fs? Or am I looking at this the wrong way?
Unless you're talking about a vnode backed MFS (as generated by
vnconfig(8) on 4.x or 'mdconfig -t vnode' with 5.x's generic
mdconfig(8) command) you're going to have to rebuild everything you
put onto the MFS every time you recreate it. That's not the usual way
of doing things -- generally a MFS is used for ephemeral data created
as the application runs.
On the other hand, if you're running on a vnode backed setup, then
from the point of view of populating it with files, it's just like any
other filesystem.
> Any advice, tips, or sharing will be greatly appreciated.
Hmmm... Well, the copying can be done by all manner of means.
rsync(1), tar(1), find(1)/cpio(1) spring to mind. pkg_add(1) works
well -- maybe with a modified $PREFIX. Building a custom package
containing everything you want to install in your MFS so that you can
just re-install it at will would be quite a nifty idea. Even cp(1).
If you're using a vnode backed area for a thick jail(8), then you can
install a base system on it by:
# make installworld DESTDIR=/jail/192.168.0.2
(assuming that's where you mount your jail...) If you then either do
a loopback nfs mount or a null mount of /usr/ports onto the jail (see
mount_nfs(8), mount_null(8)), or even just install a separate copy of
/usr/ports, you can compile and install ports from within the jail as
just if you were in the base system.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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