Re: [mh] NFS and permissions

Tim-

Have you checked that the uid for the user 'pi' is the same on the
rpi and the nas?  I've seen permissions gets changed if the uid's
don't match.  I seem to recall a way to map uid's between systems,
but I don't remember much about it.

Joel


On Mon, 14 Oct 2019, it would appear that Timothy Spaulding wrote:

> Hi Giles,
> 
> Thanks for the idea. Unfortunately, it didn't make a difference.
> 
> After the volume is mounted, the permissions all disappear from the perspective of the 'pi' user.  However, if I were to do a 'su' to root and then a ls -l /mnt, I would see the syn folder has rwx for owner,group,everyone.
> 
> Tim
> 
> From: Giles Godart-Brown <[email protected]>
> Sent: Monday, October 14, 2019 3:14 AM
> To: [email protected]
> Subject: Re: [mh] NFS and permissions
> 
> 
> Tim
> 
> I'm not sure if this is related, but some early versions of PI had problems with NFS version 4 on Synology NAS, when this happens, I force it to use version 3 by for example having an fstab something like this
> 
> 192.168.100.35:/volume1/pishare /mnt/pishare nfs nouser,atime,auto,rw,dev,exec,suid,nfsvers=3 0 0
> 
> Regards
> 
> Giles
> 
> 
> On 13/10/2019 22:38, Timothy Spaulding wrote:
> Hello All,
> 
> This isn't a MH question/issue per se, but it does involve a raspberry PI that I might would like to make my MH machine.
> 
> Short story:
> I have a Synology NAS that has a NFS volume/path exported
> I have to RPIs that can mount the NFS volume and read/write with no issues
> I have a brand new RPI 4 and an older Debian (stretch) install that mounts the NFS volume, but gets a permissions denied when trying to simple ls the contents of the volume.
> 
> Logged on as pi,
> 
> sudo mkdir /mnt/syn
> sudo mount <NAS>:/volume1/nfs /mnt/syn
> ls -l /mnt
> 
> 
> d--------- 1 root root 268 Oct 13 14:24 syn
> 
> is the result I get after mounting, if I were to unmount the volume (and these are the same values before mouinting), I get the following from the ls -l command:
> 
> drwxr-xr-x 2 root root 4096 Oct 13 14:02 syn
> 
> As I see it, the chmod permission are changing when mounting the NFS volume. The strangest part to me is that it works on 2 other RPIs.
> 
> I hope someone has some ideas I cnatry.
> 
> Tim
> 
> 
> 
> 
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> 
> 



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