Quickly fix fusermount: exec: "fusermount": executable file not found in $PATH by installing missing Filesystem in Userspace package.
This is a clear indication of the missing executable.
$ rclone mount gcp: ~/gcp 2019/09/07 19:10:12 Fatal error: failed to mount FUSE fs: fusermount: exec: "fusermount": executable file not found in $PATH
Install Filesystem in Userspace package.
$ sudo apt install fuse Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: fuse 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 72.3 kB of archives. After this operation, 144 kB of additional disk space will be used. Get:1 http://deb.debian.org/debian buster/main amd64 fuse amd64 2.9.9-1 [72.3 kB] Fetched 72.3 kB in 1s (129 kB/s) Selecting previously unselected package fuse. (Reading database ... 31948 files and directories currently installed.) Preparing to unpack .../fuse_2.9.9-1_amd64.deb ... Unpacking fuse (2.9.9-1) ... Setting up fuse (2.9.9-1) ... update-initramfs: deferring update (trigger activated) Processing triggers for man-db (2.8.5-2) ... Processing triggers for initramfs-tools (0.133+deb10u1) ... update-initramfs: Generating /boot/initrd.img-4.19.0-6-amd64
Mount configured remote.
$ rclone mount gcp: ~/gcp
Problem solved.