[systemd-devel] Is there a way to override the "Where" option in mount units?

[Lennart Poettering]

On Di, 31.10.17 11:19, Dennis Jacobfeuerborn (dennisml at conversis.de) wrote:

> Hi,
> I'm trying to set up a redundant nfs server but the problem I'm
> currently running into is that I need to move the
> /var/lib/nfs/rpc_pipefs mountpoint outside of /var/lib/nfs.

Hmm, rpc_pipefs is a virtual API fs, right? If so, it really shouldn't
be mounted below /var in the first place. Any chance you can work with
the NFS folks to maybe move it below /run (or /sys or so) where API
file systems really belong? Otherwise everybody who wants to run /var
on FNS will run into the same problems sooner or later.

Neil, maybe you could comment on this? Thanks!

> The original mountpoint is handled by
> /usr/lib/systemd/system/var-lib-nfs-rpc_pipefs.mount which comes as part
> of the nfs-utils RPM.
> So my initial naive idea was to create a drop-in in /etc/systemd/system
> and override the "Where" option but that's when I learned that this
> option cannot differ from the mount unit filename.

Yeah, something like that isn't really supported. However, you could
make it a bind mount, and first mount rpc_pipefs to /run somewhere,
and the just bind mount it over to /var/lib later?

Lennart

-- 
Lennart Poettering, Red Hat