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I used sshfs without sudo to create a directory like
sshfs user@172.19.76.226:/media/user/harddrive /temp/user/harddrive
but when I want to umount the /temp/user/harddrive directory with
umount /temp/user/harddrive
it prompts:
umount: /temp/user/harddrive: Permission denied
so how to umount this directory?
sshfs uses FUSE (File system in USErspace) instead of the regular mount with elevated permissions.
That also means you can not use umount (the counterpart of mount) to unmount the file system though, but you have fusermount -u, the FUSE unmount command:
fusermount -u /temp/user/harddrive
For more info, see e.g. man sshfs and man fusermount.
umount mountpoint” while until 16.04 it’s fusermount -u mountpoint instead – guess it’s different for different releases!
/temp/user/harddrive': Input/output error". I have never seen a sshfs get properly unmounted without using sudo`.
Oct 8, 2020 at 9:09
This answer refers to Ubuntu 20.04, but in general you need two steps to properly unmount a sshfs volume: i) kill the sshfs process and ii) use sudo to unmount. Without using sudo, the system reports messages like "Device or resource busy" or "Transport endpoint is not connected", even if permissions are correct.
The instructions look like:
killall sshfs
sudo umount -l /temp/user/harddrive
mount.lsb_release -rshows it if you don’t know.