Re: udev runtime data will move from /dev/.udev/ to /dev/.run/udev/

[Lennart Poettering <lennart@poettering.net>]

On Thu, 17.03.11 13:24, Andrey Borzenkov (arvidjaar@gmail.com) wrote:

> > Kay has clarified in IM that the /dev/.run directory is bind-mounted
> > to /var/run later in the boot, so it's available at both paths always.
> > If other distros ignore that, then it's just a change of path for
> > udev.
> >
> > Which makes me wonder why this is necessary at all.  Modern distros
> > have a tmpfs mounted on /var/run at all phases of the boot,
> 
> there are several packages in Mandriva that install subdirectories in
> /var/run and simply expect them to be present at any time. My first
> try at tmpfs-mount /var/run under systemd was disaster. While I can
> fix all those packages to install tmpfiles.d under systemd, I do not
> see what can be sensibly done without (except extracting tmpfiles.d
> from systemd into separate package).
> 
> So the question is - is all of this still going to work without this
> bind mount?

For now I don't think too many things will break if /var/run is not a
tmpfs, and if /var/run is not bind mounted to /dev/.run. But sooner or
later this will probably break...

Lennart

-- 
Lennart Poettering - Red Hat, Inc.