[arch-general] [PATCHES] About /var/run/ and /var/lock/ checks in daemons

[Jan Spakula]

Excerpts from Jan Spakula's message of Thu Feb 12 09:22:00 +0100 2009:
> Excerpts from Jan de Groot's message of Thu Feb 12 08:59:41 +0100 2009:
> > On Thu, 2009-02-12 at 05:51 -0200, Gerardo Exequiel Pozzi wrote:
> > > I interested to make Arch Linux suitable for use with a /var/run and
> > > /var/lock that are mounted as tmpfs. But this also helps, in the case
> > > that not mounted as tmpfs, to make more simple "purge function" for
> > > these directories at rc.sysinit step.
> > > 
> > > In my case this is "just for fun!", but other users can be benefited by
> > > this, for example "netbook users".
> > If this requires patching so many packages, and given the fact
> > that /var/run on tmpfs is not default in archlinux, maybe you should try
> > building /var/run from an initial directory or something like that. This
> > is also what I use for my OpenBSD router which runs from compactflash
> > and has /var mounted on ramdisk.
> 
> I have a setup on my netbook where the whole /var is mounted as tmpfs and
> rsynced from and to real directory (/var-sync in my case) on boot/shutdown.
> Patches to rc.sysinit and rc.shutdown follow. [Note that whenever you update
> initscripts, you need to patch at least rc.shutdown before rebooting :)]

Well apparently attachments are scrubbed, so here you go
http://rafb.net/p/ePKlct55.html
http://rafb.net/p/yDQSPc95.html

Advantages are mainly on netbooks, which have limited number of writes to
their ssd drives, this eliminated a big source of uncontrolled writes.