Error specifying subtype: "/bin/sh: <subtype>: command not found"

[libfuse]

Error specifying subtype: "/bin/sh: : command not found"

from libfuse.

[Nikratio]

I think you assume more logic than there is. If you call mount -t <foo>, it looks for a mount helper called mount.<foo>. So if <foo> is fuse.bindfs, it looks for mount.fuse.bindfs. These semantics have nothing to do with fuse.

[Balletie]

Hi, thanks for replying!

But if that's the case, why does it end up throwing this error inside the mount.fuse executable? Is it used as a fallback for when mount.fuse.bindfs is not found?

I got the same error when specifying it inside /etc/fstab, by the way.

[Nikratio]

No idea. But if it's not documented, then you shouldn't rely on it.

[Balletie]

Alright thanks. I inspected the code of mount, and I saw that if it does not find mount.fuse.bindfs, it looks for the type without the subtype instead (mount.fuse). So this is why it ends up inside mount.fuse.

Would you consider searching the PATH for a bindfs a good option/solution? Or do you think that fuse will end up doing too much?

I also saw that there is a problem in the bindfs packaging in NixOS: it does not create a mount.fuse.bindfs executable or symlink like you said. I'm going to see if I can fix it on their side.

Thanks again :)

[Nikratio]

On Feb 18 2016, Skip [email protected] wrote:

Alright thanks. I inspected the code of mount, and I saw that if it
does not find mount.fuse.bindfs, it looks for the type without the
subtype instead (mount.fuse). So this is why it ends up inside
mount.fuse.

Would you consider searching the PATH for a bindfs a good option/solution? Or do you think that fuse will end up doing too much?

Not in principle. But I'd need to see an actual patch to be sure.

Best,
-Nikolaus

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