Date: Thu, 5 Oct 2000 01:56:03 -0500 From: Glenn Johnson <glennpj@charter.net> To: Dan Langille <dan@langille.org> Cc: Glenn Johnson <glennpj@charter.net>, freebsd-questions@FreeBSD.ORG Subject: Re: more than one swapfile with vnconfig Message-ID: <20001005015602.A81801@gforce.johnson.home> In-Reply-To: <200010050521.SAA36181@ducky.nz.freebsd.org>; from dan@langille.org on Thu, Oct 05, 2000 at 06:20:56PM %2B1300 References: <200010041018.XAA28539@ducky.nz.freebsd.org>; <20001004165235.A1487@gforce.johnson.home> <200010050521.SAA36181@ducky.nz.freebsd.org>
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On Thu, Oct 05, 2000 at 06:20:56PM +1300, Dan Langille wrote:
> On 4 Oct 2000, at 16:52, Glenn Johnson wrote:
>
> > On Wed, Oct 04, 2000 at 11:18:49PM +1300, Dan Langille wrote:
> >
> > > I don't know how to specify the second swap file in the
> > > configuration file. I'd like to use both the existing and the new
> > > swap file.
> > >
> > > clues please.
> >
> > Your vntab has /usr4/ but you created the file under /usr2/ so you
> > may want to verify if that is correct. You can create the swapfile
> > from vnconfig by the way, vnconfig(8).
>
> Sorry, I wasn't clear. I should not write late at night (repeat 100
> times). I already had one swap file (/usr4/swapfile) but this was
> insufficient. So I created another (/usr2/swapfile). My problem was
> trying to figure out how to specify both swapfiles withint the same
> /etc/vntab file.
>
OK, I understand now. I did not really catch the phrase "second swap
file" above and thought you were just adding a swap file to the standard
swap. You would add the following to /etc/vntab:
/dev/vn1c /usr2/swapfile swap
You will have to make the vn1 devices with /dev/MAKEDEV.
> > Then, the following code from /etc/rc is activated:
> >
> > -----
> > # Add additional swapfile, if configured.
> > #
> > case ${swapfile} in
> > [Nn][Oo] | '')
> > ;;
> > *)
> > if [ -w "${swapfile}" -a -c /dev/vn0b ]; then
> > echo "Adding ${swapfile} as additional swap."
> > vnconfig /dev/vn0b ${swapfile} && swapon /dev/vn0b
> > fi
> > ;;
> > esac
> > -----
> >
> > Hope that helps.
>
> Now that is interesting. Thanks.
>
> For the time being, I've changed /etc/vntab to refer to the new swap
> file instead of the old swap file. I'll clean things up after BSDCon.
I guess the /etc/rc file does not cover your situation as it only
handles one extra swap file. You will have to add startup code for your
second swap file manually, possibly using /etc/rc.local. In your case
you probably do not want to add the swapfile="/usr?/swapfile" line to
/etc/rc.conf but instead run vnconfig -a at some point during startup to
read your /etc/vntab file, followed by:
swapon /dev/vn0c /dev/vn1c
--
Glenn Johnson
glennpj@charter.net
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