% podman-volume-unmount 1
podman-volume-unmount - Unmount a volume
podman volume unmount volume [...]
podman volume umount volume [...]
Unmounts the specified volume, if there are no other containers using it.
Volume storage increments a mount counter each time a volume is mounted. When a volume is unmounted, the mount counter is decremented, and the volume's filesystem is physically unmounted only when the mount counter reaches zero indicating no other processes are using the mount.
Unmount volume with a given ID:
podman volume unmount volumeID
Unmount multiple volumes with given IDs:
podman volume unmount volumeID1 volumeID2 volumeID3