Bug#582107: NFS mounts default to version 4, don't fall back automatically
On Tue, 2010-05-18 at 14:23 +0200, Juliusz Chroboczek wrote:
> Package: nfs-common
> Version: 1:1.2.2-1
> Recent versions of mount.nfs default to NFS version 4.
My understanding is that mount.nfs does not even support version 4 and
you have to explicitly use mount.nfs4 (i.e. specify filesystem type as
> The result is that mounting ordinary version 3 filesystems fails with EPERM.
I can't reproduce this.
> The bug is not the new default, which is open to debate; the bug is that
> Sun RPC is supposed to allow negotiation of the protocol version, and
> that mount appears unable to fall back to version 3 if version 4 is not
> supported by the server.
> A workaround is to add "vers=3" to the options column in /etc/fstab.
Please provide the complete fstab line that fails for you.
Once a job is fouled up, anything done to improve it makes it worse.