mount -t vboxsf Operation not supported by device

[MikhailRokhin]

When use mount -t vboxsf ...as suggested by VB-host SharedFolders hint, it fails, but writes nothing in dmesg. And there is mistake in the hint - it should be vboxVFS not vboxSF. Because vboxSF triggers nothing and vboxVFS triggers kldload of /boot/modules/vboxvfs.ko .

When use mount -t vboxvfs ... and mount_vboxvfs ... it shows:

link_elf_obj: symbol bcmp undefined
linker_load_file: /boot/modules/vboxvfs.ko - unsupported file type

FreeBSD 13-Current
Additions: 5.2.34_2 (installed via pkg, not compiled)

[MikhailRokhin]

​https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244962

[CM_Christoph]

"vboxsf" looks like a typo, should be "vboxfs" for sure.

[Graham Perrin]

<​https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244962#c6> in Bugzilla suggests closure here.

From <​https://github.com/freebsd/freebsd-ports/commit/7f06d5b68d3929faa7a2a94f12585a9f4a45f159> (2017-07-18):

… an experimental implementation of VirtualBox SharedFolder subsystem support for FreeBSD. …