superseded: [PATCH storage v2 0/2] nfs: use rpcinfo as a showmounts fallback for nfs3

[Maximiliano Sandoval <m.sandoval@proxmox.com>]

Maximiliano Sandoval <m.sandoval@proxmox.com> writes:

> See the respective commit messages.
>
> This came up in enterprise support. In this case the NFS appliance only
> supported NFSv3 and the showmounts command failed, but rpcbind
> succeeded (with -T tcp).
>
> This possibility was discussed with Friedrich and Fiona off-list.
>
> Tested:
>  - Created a NFS share on host "B"
>  - On host "A" a NFS storage was added (using B's share) with --options vers=3
>  - Ran `ss -tulpn4 |grep mountd` on host B to see ports used by showmounts
>  - The ports listed were blocked on host "A", so that showmount fails:
>
>    /sbin/showmount --no-headers --exports $B
>    rpc mount export: RPC: Unable to send; errno = Operation not permitted
>
>  - Ran `pvesm status` on A and checked that the NFS storage is available
>  - Created a VM on A with a disk image in the the NFS storage
>
> The later two operations would have failed without the changes here.
>
> Differences from v1:
>  - the name of the helper function was fixed
>
> Maximiliano Sandoval (2):
>   nfs: create a helper to run rpcinfo commands
>   nfs: use rpcinfo as a showmounts fallback for nfs3
>
>  src/PVE/Storage/NFSPlugin.pm | 33 +++++++++++++++++++++++----------
>  1 file changed, 23 insertions(+), 10 deletions(-)

Superseded-by: https://lore.proxmox.com/all/20260325124646.298999-1-m.sandoval@proxmox.com/T/#u

-- 
Maximiliano