fusefs-ntfs (ntfs-3g) problem - linux compatibility?

[Steve Franks]

I get the following:

[steve at aire ~]$ sudo ntfs-3g /dev/ad10s2 /mnt/rainstone
Failed to open /proc/filesystems: No such file or directory
modprobe: not found
Failed to open /proc/filesystems: No such file or directory
[steve at aire ~]$

As I do not indeed have /proc/filesystems, the error is correct.
Should I?  Is this a linux-vs-bsd directory hierarchy issue?  Just
built the latest fuse-fs-kmod and fusefs-ntfs from ports on 6.1/amd64.

Steve