Date: Mon, 9 Jun 2003 11:11:32 -0700 From: Joshua Oreman <oremanj@webserver.get-linux.org> To: Ted Faber <faber@ISI.EDU> Cc: hackers@freebsd.org Subject: Re: ramdisk?? Message-ID: <20030609181132.GC85429@webserver.get-linux.org> In-Reply-To: <20030609180452.GJ61917@pun.isi.edu> References: <23893.209.236.210.66.1055178986.squirrel@mail.romero3000.com> <20030609180452.GJ61917@pun.isi.edu>
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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.
-- Josh
>
> Good luck.
>
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