mfs

[Ceri Davies]

On Wed, Aug 13, 2003 at 11:32:53AM -0700, Joshua Oreman wrote:
> On Wed, Aug 13, 2003 at 05:58:29PM -0000 or thereabouts, mbaki at whywire.net wrote:
> > Hi all,
> > 
> > I'm trying to setup /var on a mermory file system on Freebsd 5.1, any good documents that will 
> > help me, it's my first time.
> 
> Don't set up /var on MFS, it holds stuff that has to be preserved across reboots.
> To set up /tmp on a MFS (for this one boot), do like so:
> # mv /tmp /tmp.old
> # mkdir /tmp

Don't forget to add the sticky bit here:

  # chmod 1777 /tmp

> # MD=`mdconfig -a -t swap -s XXXm`    # replace XXXm with size
> # newfs /dev/$MD
> # mount /dev/$MD /tmp
> # unset MD
> 
> It will disappear when the system goes down.

To have it reappear on boot, add the following to your /etc/fstab:

  md    /tmp    mfs   rw,nosuid,async,noatime,nosymfollow,nodev,-s=524288     0       0

You may want to change the options and size.

Ceri
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