SOLVED: xen orchestra running as guest in parallels cannot connect to freenas nfs share

jeepeegit

Goal is running xen orchestra from my macbook.

Macbook yosemite (network connected by utp cable)
Parallels Desktop 12
Guest: Ubuntu 18.04 LTS sever (Shared network) with a installation Xen Orchestra latest (it runs and can connect to xcp-ng server)
NFS share on a freenas for remote backup Xen Orchestra

In the guest terminal session i can mount the freenas nfs share with cli command:
mount ipnumber:/mnt/raid/nfs/backup /mnt/tmp

But when i try to make a nfs connection in xen orchestra i get a error:

Connection failed
Command failed: mount -t nfs ipnumber:/mnt/raid/nfs/backup /run/xo-server/mounts/d092edc4-4aba-42a3-8a26-c1873603f97e -o vers=3 mount.nfs: access denied by server while mounting ipnumner:/mnt/raid/nfs/backup

Access denied by server?
Running xen orchestra in a vm on xcp-ng i don’t have freenas nfs share mounting problems.
Where is the difference?

olivierlambert

Depends on how you are using your network settings in Parallels. What's the IP address of your Ubuntu VM?

jeepeegit

lan range 192.168.10.0/24
parallels guest ip 10.211.55.19/24 so its behind NAT
But mounting with cli command mounts well. Same ip ...

olivierlambert

So in your Ubuntu VM in parallels, you can mount the NFS share with the same arguments?

jeepeegit

Yes,
Cli mount goes well but xen orcestra mount give a error. Same guest vm.

olivierlambert

XO is basically calling mount from the system so it might be something you don't use manually (a mount option?)

jeepeegit

After:
mount 192.168.10.6:/mnt/raid/nfs /mnt/jan

and i look with mount i get this:
192.168.10.6:/mnt/raid/nfs on /mnt/jan type nfs4 (rw,relatime,vers=4.1,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=10.211.55.19,local_lock=none,addr=192.168.10.6)
So its working.

After manual typing what XO tried:
mount -t nfs 192.168.10.6:/mnt/raid/nfs/backup /mnt/jan -o vers=3

I get the same error:
mount.nfs: access denied by server while mounting 192.168.10.6:/mnt/raid/nfs/backup

So the “-o vers=3" option is the problem.
Can i edit a file in XO to get rid of the “-o vers=3” option?

SOLVED
In XO i used the option -o vers=4 and this works.