[PVE-User] NFSv4 support for NFS storage?

[Frank Thommen]

Hi,

new fileservers in our department are configured to require NFSv4 and do 
not support NFSv3 any more.  That worked fine for PVE 3.x by patching 
the "values.options" assignment in 
/usr/share/pve-manager/ext?/pvemanagerlib.js.

When applying the same patch to PVE 4.x, the storage is mounted 
correctly and also shown in the summary, but the status is inactive and 
`pvesm list <storage>` returns "mount error: mount.nfs: 
/mnt/pve/<storage> is busy or already mounted".  In the content tab, the 
error "mount error: mount.nfs: /mnt/pve/<storage> is busy or already 
mounted (500)" is shown.

Is there any other patch which has to be applied to make NFSv4 working 
with PVE 4.x and is there already a timeframe, when NFSv4 will be 
supported out of the box?

We are currently running "pve-manager/4.1-33/de386c1a (running kernel: 
4.2.6-1-pve)".

Cheers
Frank