NFS wont reconnect

[Tom H]

On Tue, Apr 12, 2011 at 8:59 PM, Nick Edwards <nick.z.edwards at gmail.com> wrote:
>
> When I start my notebook, login, wifi logs in, NFS connects, but if my wifi
> drops out, ubuntu lucid never reconnects to NFS, I've left it for hours and
> still wont.
>
> My fstab is
> 192.168.200.100:/files1      /files1  nfs
> rw,hard,intr,tcp,bg,rsize=32768,wsize=32768,nfsvers=3   0 0
> 192.168.200.100:/files2      /files2  nfs
> rw,hard,intr,tcp,bg,rsize=32768,wsize=32768,nfsvers=3   0 0
>
> my desktop does not have this problem, so I am sure it is not a server
> thing, besides, if I reboot, it will reconnect, so can't be server related.
>
> if I leave it for, well, now it's been 90 minutes since wifi reconnect, I
> try umount -a -t nfs   I get
>
> umount.nfs: /files2: device is busy

umount -l ...
or
umount -fl ...
should do it.