NFS SERVER problems

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Petrus4

Member
Feb 18, 2009
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NFS SERVER problems: openVZ container

I am running FOG (Free open Source Ghost) as a ubuntu 8.04-1 container and here is my output when I restart the nfs-kernel-server:

adnim1@FOG:/images/dev$ sudo /etc/init.d/nfs-kernel-server restart
* Stopping NFS kernel daemon [ OK ]
* Unexporting directories for NFS kernel daemon... [ OK ]
FATAL: Could not load /lib/modules/2.6.24-7-pve/modules.dep: No such file or directory
* Exporting directories for NFS kernel daemon... exportfs: /etc/exports [1]: Neither 'subtree_check' or 'no_subtree_check' specified for export "*:/images".
Assuming default behaviour ('no_subtree_check').
NOTE: this default has changed since nfs-utils version 1.0.x

exportfs: /etc/exports [2]: Neither 'subtree_check' or 'no_subtree_check' specified for export "*:/images/dev".
Assuming default behaviour ('no_subtree_check').
NOTE: this default has changed since nfs-utils version 1.0.x

[ OK ]
* Starting NFS kernel daemon
Click to expand...
Can one run an NFS server on an openVZ container at all? It needs to be able to throughput disk images.

Can someone help me get the NFS server to work on an OpenVZ container?
 
Last edited:
I used FOG in a VS as well. I switched to unfs. I had trouble with the nfs-user package, but I do not remember what the issue was anymore. I also found that FOG works better if you use the bridged ethernet instead of the virtual network. I could not get mulitcasting or wol to work under the virtual network, but then again when I started FOG was still on version 0.19. It could have just been an issue with FOG.
 
dietmar said:
Please use nfs-user-server instead of nfs-kernel-server.
Click to expand...



jburleson said:
I used FOG in a VS as well. I switched to unfs. I had trouble with the nfs-user package, but I do not remember what the issue was anymore. I also found that FOG works better if you use the bridged ethernet instead of the virtual network. I could not get mulitcasting or wol to work under the virtual network, but then again when I started FOG was still on version 0.19. It could have just been an issue with FOG.
Click to expand...

Ok I found the solution. Thanks everyone for putting me on the right track.

I installed the debian/ubuntu package unfs3

Code: 
sudo aptitude install unfs3

it automatically removed the nfs-kernel-server

at this point all the services were running but no shares were mounted. I got a "permissionj denied" error on the client when trying to upload an image. I found out the unfs3 does not like a * in the /etc/exports file so I replaced the * with my internal network x.x.x.x/24 restarted unfs3

Code: 
/etc/init.d/unfs3 restart

and boom the shares were now mounted.

So far I have uploaded a multi partition image at around 550MB per min. and downloaded an image at about 2.5 GB per minute. I have not tried multicasting yet. I have run some to tests WOL but this did not work.

Does anyone know why multicasting or WOL might not work on an OpenVZ installation?
 
Are you using a virtual network - venet - (this is the default)? I did not have any luck with multicast or wol using venet. However, once I switched the network type over to a bridge ethernet (veth) both multicasting and wol worked just fine. Do forget once you switch to a bridge, you will have to configure the interface from inside the VE.
 
jburleson said:
Are you using a virtual network - venet - (this is the default)? I did not have any luck with multicast or wol using venet. However, once I switched the network type over to a bridge ethernet (veth) both multicasting and wol worked just fine. Do forget once you switch to a bridge, you will have to configure the interface from inside the VE.
Click to expand...

Thanks for the suggestion. I have been reading about this.

I am using venet
I still have not tried multicasting, I have tried WOL and this is not working.

If I change to network type to veth will this affect my other containers?

How would I change the network interface to veth I do not see that option in the web gui would I have to configure via command line in the on the host?
 
Petrus4 said:
Thanks for the suggestion. I have been reading about this.

I am using venet
I still have not tried multicasting, I have tried WOL and this is not working.

If I change to network type to veth will this affect my other containers?

How would I change the network interface to veth I do not see that option in the web gui would I have to configure via command line in the on the host?
Click to expand...

Oops forgot to search the forum.. I already found the answer:

http://www.proxmox.com/forum/showthread.php?t=1573


Why does veneth not work with multicasting or WOL?:confused:
 
I never got around to figuring out why. At the time I did not real need either of them. It think it has something to do with venet not having a MAC address, though.
 
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