[Pkg-sysvinit-devel] Bug#670106: initscripts: please ignore noauto sysfs entries in fstab

[Carsten Hey]

* Carsten Hey [2012-05-11 00:58 +0200]:
> * Carsten Hey [2012-04-30 02:00 +0200]:
> > * Roger Leigh [2012-04-29 23:19 +0100]:
> > > > > how do other distributions handle noauto in this situation?  Do they
> > > > > respect it, ignore it, or not look at fstab at all?
> > > >
> > > > ...
> > >
> > > For current systems, I think it's useful to know what systemd and
> > > upstart are doing.  systemd is simple enough to test on Debian;
> > > for upstart we can look at Ubuntu.  ...
> > > So if all the others choose to not respect noauto for specific
> > > mounts, that's a point in favour of doing that.
> >
> > Being consistent to other init systems in Debian makes sense.  I'll send
> > an other mail after knowing this.
>
> I installed Fedora 16 (uses systemd as init and was released in November
> 2011) and the just released Ubuntu LTS (uses upstart) into a KVM
> container and added a noauto sysfs line for /sys that matches (besides
> noauto) their default mount options to /etc/fstab on both systems.
>
> On both systems, /sys was mounted despite the noauto sysfs entry.

In my previous mail I forgot to mention if others ignore the fstab entry
completely or only ignore the noauto option.

systemd/Fedora and upstart/Ubuntu ignore the noauto option but respect
the other options (or at least some of them).  I tested this by adding
relatime as mount option to the noauto sysfs entry on Ubuntu and
replacing relatime with strictatime on Fedora.

I also tested this with the same result for /proc on Fedora.

The attached yet untested patch adapts initscripts to match the
behaviour of the other systems.


Regards
Carsten
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