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Re: [LUG] Systemd NFS mount via fstab.

 

Whats your boot sequence? there might be an order problem? 

Sent from my iPhone

> On 21 Jul 2018, at 17:07, mr meowski <mr.meowski@xxxxxxxx> wrote:
> 
>> On 21/07/18 13:05, Julian Hall wrote:
>> Hi All,
>> 
>> I would appreciate some guidance on this please. I've tried following 
>> this website but I come unstuck on the specific filenames I need to use:
>> 
>> https://cloudnull.io/2017/05/nfs-mount-via-systemd/
>> 
>> I'm using - as some already know - a Synology DS216j as my NAS. I have 
>> three shares on it, DEMETER, HESTIA and PERSEPHONE. All three have the 
>> shares exported via the Synology Diskstation Manager (DSM). The 
>> permissions set for all three exports are:
>> 
>> Client: 192.168.1.0/24
>> Privilege: Read/Write
>> Squash: map root to admin
>> Asynchronous: Yes
>> Non-privileged port: Allowed
>> Cross-mount: Allowed
>> 
>> These work for the Raspberry Pi I have [had] running Kodi and the smart 
>> functions of my BD player which displays movies and pictures from the NAS.
>> 
>> The perennial problem is that since kernel 4.12.* the NFS shares will 
>> not mount from the fstab at boot. I have to run 'sudo mount -a' every 
>> time; that works flawlessly so there is obviously a problem with the 
>> boot process. This website seems to offer the solution but creating the 
>> unit mount files for my case are giving me a headache. Taking DEMETER as 
>> an example:
>> 
>> Server IP: 192.168.1.3
>> Server name: Zeus
>> Share name: DEMETER
>> fstab entry: 192.168.1.3:/volume1/DEMETER /media/julian/DEMETER nfs
>> 
>> The unit mount file at the moment is named 
>> '192.168.1.3-volume1-DEMETER'. Content of the file is:
>> 
>> [Unit]
>> Description=Demeter Zeus
>> After=network.target
>> 
>> [Mount]
>> What=192.168.1.3:/volume1/DEMETER
>> Where=/media/julian/DEMETER
>> Type=nfs
>> Options=_netdev,auto
>> 
>> [Install]
>> WantedBy=multi-user.target
>> 
>> I've tried 'Zeus' instead of the server IP but that made no difference. 
>> I am really scratching my head at this point.
> 
> 
> This is still haunting you then I see!
> 
> You name the new mount unit after your *local mount point* and not the 
> remote path, so your unit file should be at:
> 
> /etc/systemd/system/media-julian-DEMETER.mount
> 
> And NOT:
> 
> /etc/systemd/system/192.168.1.3-volume1-DEMETER
> 
> Make sense? You want the result to be the Synology NFS share mounted at 
> MINTBOX:/media/julian/DEMETER I believe.
> 
> I've just tested this on a Mint 18.3 VM which hopefully should be very 
> close to your setup, presuming you've not upgraded to Mint 19 yet. The 
> NFS server in my case is Ubuntu rather than a Synology though, hopefully 
> that won't make too much difference.
> 
> 1: comment out *all* fstab NFS entries on the client
> 2: remove all other new systemd files and edits you've done
> 3: unmount all NFS shares or just reboot to start fresh
> 4: create the file /etc/systemd/system/media-julian-DEMETER.mount
> containing:
> 
> [Unit]
> Description=NFS lazy test
> After=network.target
> 
> [Mount]
> #What=failbot:/export
> What=192.168.1.3:/volume1/DEMETER
> #Where=/media/ghost/FAILBOT
> Where=/media/julian/DEMETER
> Type=nfs
> Options=_netdev,auto
> 
> [Install]
> WantedBy=multi-user.target
> 
> 6: sudo systemctl daemon-reload
> 7: sudo systemctl status media-julian-DEMETER.mount
> 8: sudo systemctl start media-julian-DEMETER.mount
> 9: ls -alh /media-julian-DEMETER
> 
> The systemctl steps 6-8 will give you lots of useful info as they run - 
> I've left my original entries as comments so you can see what worked for 
> me. Hopefully this will just work first time if I haven't typoed 
> anything - double check as you enter it though obviously.
> 
> I'd avoid using /media as a mount point though, considering it's history 
> of being used for automatic external mounts... Why not mount the NFS 
> share somewhere more sane like your home directory?
> 
> This method will also automatically mount the NFS share during boot 
> every time which is I think what you wanted all along - I'm not 
> convinced you do really want that though. You really should just let 
> systemd mount and umount on demand (forced NFS umounts on unreachable 
> servers are bad), but one thing at a time I guess.
> 
> See how you get on.
> 
> Cheers
> 
> 
> 
> 
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