[arch-general] Mounting /var early in systemd

Tom Gundersen teg at jklm.no
Wed Dec 12 08:17:34 EST 2012

On Wed, Dec 12, 2012 at 12:10 PM, Paul Gideon Dann <pdgiddie at gmail.com> wrote:
> I'm trying a mount
> unit here, because I was hoping there might be a bit more magic to it.

Yes, it is.

> However, it does mean that I had to hardcode the mount path (%H doesn't seem
> to work)

At the moment %H and friends only work on Exec*, I think it would make
sense to extend it to work in more places (including Where=).

> but if I can get this working, I have a oneshot unit that should
> take care of that.

As Dave said, maybe a generator would be better.

> I created a "sockets-pre.target" unit, ordered before "sockets.target", and
> the following unit is ordered before that, because I was hoping that might
> help.  It doesn't, presumably because the socket units and this unit are all
> "before" sockets.target, and all get started at the same time.  If the sockets
> were set "after" sockets-pre.target, this would probably work.  (But in that
> case they might as well be specified directly in the unit, and the sockets-pre
> target can be dropped.)
> [Unit]
> Description=/var directory for the node
> DefaultDependencies=false
> Requires=sockets-pre.target
> Before=sockets-pre.target
> [Mount]
> What=
> Where=/var
> Type=nfs
> Options=v3,nolock
> [Install]
> RequiredBy=local-fs.target

I'm not able to reproduce this problem. I don't see the need for
sockets-pre.target. It should be possible to simply specify your mount
in /etc/fstab (obviously this only works in this test case, as the
hostname will be hardcoded), and all sockets should get ordered

Could you try that (remember doing "systemctl daemon-reload" after
editing fstab) and then doing "systemctl show <problematic>.socket |
grep After" to see if it worked? If it did not, please post the socket
unit in question.



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