Re: [linux-lvm] LILO configuration for LVM "boot" filesystem

[Russell Coker <russell@coker.com.au>]

On Thursday 07 June 2001 18:26, Jens Benecke wrote:
> >     After installation, do:
> > cd / ; mv tmp tmp.old ; ln -s /var/tmp .  reboot rm -rf /tmp.old
> >     Now you don't have to worry about root filling up at all...
>
> er... I wouldn't do that (at least not on a Debian system).
>
> Usually /var/tmp is _assumed_ to be only root-writeable, so all sorts
> of daemons and programs running as root put their stuff there. This
> could open a number of security holes, when /var/tmp doesn't get
> treated as carefully as /tmp.

I suggest using /var/tmp/tmp on a Debian system if you want to do this.  
That allows scripts that clean up /tmp to not clean /var/tmp (which may 
have things you want to last longer).

On Thursday 07 June 2001 23:08, Michael Tokarev wrote:
> Another thing to consider if you run 2.4 kernel -- mount tmpfs
> on /tmp (and give some reasonable size restrictions).   This way,
> /tmp works much faster, does not need to be cleaned on boot, and
> will not eat root's space.  You should have reasonable swap space
> it you plan to use it heavily.  Works very well here.

I tried that on 2.4.4 and I couldn't run the KDE.  It seems that tmpfs 
doesn't do all the things that a real FS does (yet).

On Thursday 07 June 2001 23:18, Steven Lembark wrote:
> > cd / ; mv tmp tmp.old ; ln -s /var/tmp .
> > reboot
> > rm -rf /tmp.old
> >
> >     Now you don't have to worry about root filling up at all...
>
> until you have to boot in single user w/o /var mounted and
> the whole sysystem fries for lack of /tmp :-)

Hasn't caused any great problems for me.  Although on systems with 
separate file systems for /var and /var/tmp it means that I need to run 
mount three times before I can edit a file in the root FS.


Another thing that no-one seems to be considering is the "--bind" option 
to recent versions of mount (only works on 2.4 kernels).


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