On Mon, 2021-03-15 at 06:52 +0800, Ed Greshko wrote:
> On 15/03/2021 06:10, Patrick O'Callaghan wrote:
> > On Mon, 2021-03-15 at 05:09 +0800, Ed Greshko wrote:
> > > On 15/03/2021 00:31, Patrick O'Callaghan wrote:
> > > > I rebooted and got:
> > > > 
> > > > # findmnt /raid
> > > > # ls /raid
> > > > # findmnt /raid
> > > > #
> > > > 
> > > > IOW nothing happens.
> > > systemctl status raid.mount
> > > systemctl status raid.automount
> > > systemctl status dock.service
> > # systemctl status raid.mount
> > ● raid.mount - External /raid mount
> >       Loaded: loaded (/etc/systemd/system/raid.mount; disabled; vendor
> > preset: disabled)
> >       Active: inactive (dead)
> >        Where: /raid
> >         What: /dev/md0p1
> > # systemctl status raid.automount
> > ● raid.automount - Automount /raid
> >       Loaded: loaded (/etc/systemd/system/raid.automount; disabled;
> > vendor preset: disabled)
> >       Active: inactive (dead)
> >     Triggers: ● raid.mount
> >        Where: /raid
> > # systemctl status dock.service
> > ● dock.service - Power the dock up
> >       Loaded: loaded (/etc/systemd/system/dock.service; static)
> >       Active: inactive (dead)
> 
> systemctl enable raid.mount
> systemctl enable raid.automount

OK, hadn't realised that was necessary. Now (after a reboot) I get:
   # findmnt /raid
   TARGET SOURCE    FSTYPE OPTIONS
   /raid  systemd-1 autofs 
rw,relatime,fd=51,pgrp=1,timeout=300,minproto=5,maxproto=5,direct,pipe_ino=728
   
which is good, but still:
   # ls /raid
   ls: cannot access '/raid': No such device
   #

Turned out that mount was showing:
   mount: /raid: wrong fs type, bad option, bad superblock on /dev/md0p1, 
missing codepage or helper program, or other error.

which I finally narrowed down to the NFS 'soft' and 'fg' mount options,
which of course don't apply in my case. After removing those it now
appears to work.

The only remaining problem (touch wood) is to get the power-down script
to run after a timeout. I'll consider writing a special script to
monitor the mount status independently of systemd.

Hopefully that's all for now. Many thanks Ed, and thanks also to
Jonathan for useful pointers.

poc
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