SOLVED Adding nfs share from truenas scale to proxmox gives permission denied (500) error

[dias]

Hi,
I am trying to add a nfs share to my proxmox server from truenas scale but whatever i try it gives me permission denied error. Whay may i doing wrong?

Here is what i tried;

First i added a dataset named proxmox like the picture below

and then created a user named pveuser and gave permissions: (in group Editors)

and then added a nfs share for this dataset like below also tried mpall to root but didnt matter :(

And here is proxmox settings :(

Whatever i tried i couldnt pass this permission denied message. Any help appreciated.

 

[morganL]

TrueNAS SCALE doesn't act as an NFS client... can you try to describe your setup and goal better.

 

[dias]

TrueNAS SCALE doesn't act as an NFS client... can you try to describe your setup and goal better.

Hi,
I am trying to add my truenas scale nfs shares to my proxmox, truenas is the server not client, proxmox is the client. I will add my truenas nfs shares to proxmox so i will be able to backup my proxmox to truenas whenever i need.

 

[morganL]

Any luck?

I've never used Proxmox, but I would assume the NFS client would have username password settings somewhere... ?
Are there any NFS permsissions for hosts or networks?

/scale/scaleuireference/shares/nfssharesscreens/

Suggest documenting the error message...

 

[Lix]

Mapping user ang group should do the trick, what does the filesystem perms look like?

 

[dias]

Mapping user ang group should do the trick, what does the filesystem perms look like?

The second picture shows the permissions of the dataset i created for this purpose. Also i tried
maproot user = pveuser, maproot group = Editors
Or
mapall user = nobody, mapall group = no group
or
mapall user =root

Nothing worked

 

[dias]

Any luck?

I've never used Proxmox, but I would assume the NFS client would have username password settings somewhere... ?
Are there any NFS permsissions for hosts or networks?

/scale/scaleuireference/shares/nfssharesscreens/

Suggest documenting the error message...

Hi as far as i know proxmox only tries to connect through its own root account and ppl say that you dont need to add any user for connecting it ro truenas, you just need to map it it in truenas settings unfortunately i couldnt manage to do it no matter what maproot or mapall settings i tried.

 

[jgreco]

I've never used Proxmox, but I would assume the NFS client would have username password settings somewhere... ?

That's not how NFS has worked, historically. The NFS "client" is in the kernel and is designed to be a filesystem level service, i.e. for all users.

 

[morganL]

Hi as far as i know proxmox only tries to connect through its own root account and ppl say that you dont need to add any user for connecting it ro truenas, you just need to map it it in truenas settings unfortunately i couldnt manage to do it no matter what maproot or mapall settings i tried.

Can you connect to the NAS from any other system (e.g laptop).... historically these errors can occur if there are networking issues.

There a few other diagnostic steps in this thread.

SOLVED - Am I too dumb to understand NFS permissions?

Hello everyone! I want to share a dataset via NFS to my Proxmox host. If I try to access it, I will receive the following error: create storage failed: error during cfs-locked 'file-storage_cfg' operation: mkdir /mnt/pve/DATA/template: Permission denied at...

www.truenas.com

 

[dias]

Can you connect to the NAS from any other system (e.g laptop).... historically these errors can occur if there are networking issues.

There a few other diagnostic steps in this thread.

SOLVED - Am I too dumb to understand NFS permissions?

Hello everyone! I want to share a dataset via NFS to my Proxmox host. If I try to access it, I will receive the following error: create storage failed: error during cfs-locked 'file-storage_cfg' operation: mkdir /mnt/pve/DATA/template: Permission denied at...

www.truenas.com

Yes i can connect the same share from my main computer

 

[cliffkujala]

Yes i can connect the same share from my main computer

Did you get this sorted out?

 

[fonze98]

The only way I have been able to get this to work in scale is in the advanced settings of the share to set both "maprootuser" and "maprootgroup" to root this is equivalent to setting no_root_squash and will actually show up that way in the /etc/exports file. I don't know that I would do this in a production environment but in my lab I am ok with it.

 

[jgreco]

The only way I have been able to get this to work in scale is in the advanced settings of the share to set both "maprootuser" and "maprootgroup" to root this is equivalent to setting no_root_squash and will actually show up that way in the /etc/exports file. I don't know that I would do this in a production environment but in my lab I am ok with it.

That's the way this is supposed to be handled in a UNIX environment where the client is acting with superuser ID, which includes both Proxmox and ESXi, from what I've seen. It is unclear what you would do differently in a "production environment", as you presumably wouldn't rewrite NFS client and server code to work differently in such an environment.

 

[RayRayNoob]

I have a same/similar issue. How did you solve your problem?

 

[jgreco]

I have a same/similar issue. How did you solve your problem?

Have you tried setting the mapall settings? NFS does not have Samba-like login and password for individual sessions. It is not a protocol feature.

 

[RayRayNoob]

Have you tried setting the mapall settings? NFS does not have Samba-like login and password for individual sessions. It is not a protocol feature.

yes, i followed every thread and search about my issue. When i try to add the share in Proxmox i am suppose to get a dropdown menu shoing the shares on the ip adress from truenas, but i get notting. If I manually set the path I get a permission error when I try to send data to the share.
This is my truenas setup:

Code:

ray@truenas:/$ cat /etc/exports


"/mnt/RayStore-HDD/proxmox/backups"\
        10.10.1.0/24(sec=sys,rw,anonuid=3001,anongid=3001,no_subtree_check)
ray@truenas:/$

 

[RayRayNoob]

yes, i followed every thread and search about my issue. When i try to add the share in Proxmox i am suppose to get a dropdown menu shoing the shares on the ip adress from truenas, but i get notting. If I manually set the path I get a permission error when I try to send data to the share.
This is my truenas setup:

Code:

ray@truenas:/$ cat /etc/exports


"/mnt/RayStore-HDD/proxmox/backups"\
        10.10.1.0/24(sec=sys,rw,anonuid=3001,anongid=3001,no_subtree_check)
ray@truenas:/$

 

[jgreco]

That doesn't look to be root UID/GID. Bearing in mind that I haven't looked at the current SCALE UI and that whatever picture you included didn't make it, did you set "Advanced" and go to "Maproot user = root" and "Maproot group = root" ?

 

[RayRayNoob]

That doesn't look to be root UID/GID. Bearing in mind that I haven't looked at the current SCALE UI and that whatever picture you included didn't make it, did you set "Advanced" and go to "Maproot user = root" and "Maproot group = root" ?

Yes you are correct. This is the owner for the datashare and also the uset set in Maproot User and Maproot Group.
However, I´ve also tried to set Maproot User/Group as root:wheel, and changed the owner of the dataset to root, but the result is the same.

 

[RayRayNoob]

Yes you are correct. This is the owner for the datashare and also the uset set in Maproot User and Maproot Group.
However, I´ve also tried to set Maproot User/Group as root:wheel, and changed the owner of the dataset to root, but the result is the same.