How to register FUSE filesystem type with mount(8) and fstab?

Question

I\'ve written a small FUSE-based filesystem and now the only part\'s missing is that I want to register it with fstab(5) to auto-mount it on system startup and/or manually mount

Answer 1

To clarify @patryk.beza comment on the accepted answer, the correct way to mount a FUSE file system is by setting the file system type to fuse..

For example, to mount an s3fs-fuse implementation, which does not provide a specific /sbin/mount.* wrapper and uses normally the s3fs user command to mount S3 buckets, one can use this command as root:

mount -t fuse.s3fs bucket-name /path/to/dir -o 

or this line in /etc/fstab:

bucket-name /path/to/dir fuse.s3fs  0 0

or this SystemD mount unit (for example, /etc/systemd/system/path-to-dir.mount):

[Unit]
Description=S3 Storage
After=network.target

[Mount]
What=bucket-name
Where=/path/to/dir
Type=fuse.s3fs
Options=

[Install]
WantedBy=multi-user.target

How this works: mount recognizes the concept of "filesystem subtypes" when the type is formatted with a period (i.e. .), so that a type with the format fuse.someimpl is recognized to be the responsibility of the FUSE mount helper /sbin/mount.fuse. The FUSE mount helper then resolves the someimpl part to the FUSE implementation, in the same way as the # format is used in the original answer (I think this is just a path search for a program named , but I'm not 100% sure about it).