Re: Problem with NFS on shutdown

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On Sat, Jan 19, 2013 at 5:55 AM, Paul Marwick <paul.marwick@xxxxxxxxx>wrote:

> I've got two machines in my local network that provide NFS shares. One is
> an old Raidsonic NAS (running a current version of OpenWRT), the other a
> dedicated server running Slackware). I normally mount the shares manually
> (the machine that is giving me a problem is a laptop, so its often not
> connected to my own network).
>
> The problem comes when I try to shut the laptop down (or restart it).
> Unless I've manually unmounted the NFS shares, the machine will hang and
> fail to shut down. In some instances, I've been able to use CTRL-C to break
> out of the stall, but frequently, I can only turn the machine off, which is
> not exactly ideal.
>
> I've been playing with the nfs exports, currently have the following:
>
> /mnt/sda2/stor 192.168.1.0/255.255.255.0(rw,**
> sync,no_wdelay,nohide,no_root_**squash)<http://192.168.1.0/255.255.255.0(rw,sync,no_wdelay,nohide,no_root_squash)>(this is on the Raidsonic)
>
> and
>
> /mnt/sda2/stor 192.168.1.0/255.255.255.0(rw,**
> sync,no_wdelay,nohide,no_root_**squash)<http://192.168.1.0/255.255.255.0(rw,sync,no_wdelay,nohide,no_root_squash)>on the Slackware server.
>
> The problem is specific to Arch - I've got two other distros installed on
> the laptop (though Arch is my usual OS). From SalineOS or Salix, the laptop
> will shut down or restart without having to manually unmount the NFS shares
> prior to shutdown.
>
> I suspect I've not got something set up correctly in systemd, but I'm
> currently at a loss to work out what. If I manually unmount the shares
> before shutdown, there is no problem. I've also tried adding the unmount to
> /etc/rc.local.shutdown, but that doesn't work - the system still hangs
> during shutdown. I'm sure that rc.local.shutdown is being executed - if I
> shut down without the shares mounted, I can see messages that they are not
> mounted.
>
> I'm not sure if I should be looking at the NFS export parameters on the
> hosts, or systemd on the laptop, though I've tried some variations on the
> exports without changing the behaviour.
>
> Does anyone know what I should be looking at to solve this?
>
> Paul.
>
>
Same issue here with NFS4 (both laptop and NAS are Arch), if I find what's
happenings I post back.


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