Date: Mon, 9 Jun 2003 13:14:18 -0500 From: Juli Mallett <jmallett@FreeBSD.org> To: Joshua Oreman <oremanj@webserver.get-linux.org> Cc: Ted Faber <faber@ISI.EDU> Subject: Re: ramdisk?? Message-ID: <20030609131418.A85608@FreeBSD.org> In-Reply-To: <20030609181132.GC85429@webserver.get-linux.org>; from oremanj@webserver.get-linux.org on Mon, Jun 09, 2003 at 11:11:32AM -0700 References: <23893.209.236.210.66.1055178986.squirrel@mail.romero3000.com> <20030609180452.GJ61917@pun.isi.edu> <20030609181132.GC85429@webserver.get-linux.org>
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* Joshua Oreman <oremanj@webserver.get-linux.org> [ Date: 2003-06-09 ]
[ w.r.t. Re: ramdisk?? ]
> On Mon, Jun 09, 2003 at 11:04:52AM -0700 or thereabouts, Ted Faber seemed to write:
> > On Mon, Jun 09, 2003 at 01:16:26PM -0400, romero3000@romero3000.com wrote:
> > > (sorry about cross-posting this question. not sure which list is better)
> > >
> > > I want to to know how to create a ram file system for /var and /tmp so
> > > that i can boot from flash memory and mount those two file systems on
> > > ramfs. I've looked for howto's online but haven't found anything. any
> > > suggestions????
> >
> > On CURRENT:
>
> You mean -stable, don't you?
>
> >
> > man vnconfig
> > man vn
> >
> > I mount a swap backed fs (which I what I suspect you want) with:
> >
> > vnconfig -e -s labels -S ${vn_tmp_size} ${vn_tmp_device} && \
> > disklabel -r -w ${vn_tmp_device} auto && \
> > newfs /dev/${vn_tmp_device}c > /dev/null && \
> > mount -o nosuid -o nodev /dev/${vn_tmp_device}c /tmp && \
> > chmod 1777 /tmp
> >
> > N.B. I don't reserve the blocks on swap, which again is what I think you
> > want.
>
> On -current:
>
> man mdconfig
> man md
>
> How to do the above:
>
> vn_tmp_device=`mdconfig -a -t swap -s ${vn_tmp_size}m` &&
> disklabel -r -w ${vn_tmp_device} auto && \
> newfs /dev/${vn_tmp_device} >/dev/null && \
> mount -o nosuid,nodev /dev/${vn_tmp_device} /tmp && \
> chmod 1777 /tmp
>
> Replace ${vn_tmp_size} with the size of the disk, in Mb.
Or if you don't need a disklabel and all that, you could just
look at using mount_mfs and fstab entries outright. See the
appropriate manual pages.
--
juli mallett. email: jmallett@freebsd.org; efnet: juli;
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