I turned off a machine exporting one folder which was mounted on my Mac using NFS.

How can I find and unmount the mount point ?

df does not return; it is probably stuck on this mount point, and I can't find a way to enumerate NFS mount points.

2 Answers 2


The mount command on the command line should give a list of all mounts, along with the mount point and the used file system, so nfs mounts can be identified as such.

  • When asked the question, neither df nor mount would return, but it looks like mount is less likely to hang in such case today, because I failed to reproduce the problem with a similar setup
    – alecail
    Commented Feb 8, 2016 at 13:22

This command gave me useful informations:

$ sudo lsof | grep -i warning 
lsof: WARNING: can't stat() nfs file system /Volumes/antData
Output information may be incomplete.
assuming "dev=1a000005" from mount table

This gave me the mount point on the local machine, which I used as an argument to umount -f

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