How to unmount FUSE filesystem

[Arthur Goldberg]

Following the directions in SSHFS, I've mounted a remote directory on a local directory. 

The line in the mount table is

uid@xxx:/var/opt/leafapi/ on /Users/arthur_at_sinai/gitOnMyLaptopLocal/sc_repos/leafapi_on_vm (macfuse, nodev, nosuid, synchronous, mounted by arthur_at_sinai)

The connection has gone stale and I'd like to remount it. Reissuing this command 

sshfs uid@xxx:/var/opt/leafapi/ ~/gitOnMyLaptopLocal/sc_repos/leafapi_on_vm

generates

mount_macfuse: mount point /Users/arthur_at_sinai/gitOnMyLaptopLocal/sc_repos/leafapi_on_vm is itself on a macFUSE volume

But various attempts to use umount fail. E.g.,  

umount /Users/arthur_at_sinai/gitOnMyLaptopLocal/sc_repos/leafapi_on_vm

generates

umount(/Users/arthur_at_sinai/gitOnMyLaptopLocal/sc_repos/leafapi_on_vm): Resource busy -- try 'diskutil unmount'

And diskutil unmount says:

Unmount failed for uid@xxx:/var/opt/leafapi/

Running macOS Big Sur.

Assistance would be greatly appreciate.

Arthur

[Arthur Goldberg]

On macOS 11+ (Big Sur) the only way to umount appears to be

1. Login to an admin account

2. sudo umount node