See also:
mount, Mount, How to share data with an instance.
The umount command without any options unmounts all previously defined mappings of local directories from the host to an instance.
You can also unmount only a specific mount if you specify the desired path.
The full multipass help umount output explains the available options:
Usage: multipass umount [options] <mount> [<mount> ...]
Unmount a directory from an instance.
Options:
-h, --help Displays help on commandline options
-v, --verbose Increase logging verbosity. Repeat the 'v' in the short option
for more detail. Maximum verbosity is obtained with 4 (or more)
v's, i.e. -vvvv.
Arguments:
mount Mount points, in <name>[:<path>] format, where <name> are
instance names, and optional <path> are mount points. If
omitted, all mounts will be removed from the named instances.
Errors or typos? Topics missing? Hard to read? Let us know or open an issue on GitHub.