[HaikuPorts-devs] FUSE on Haiku
ingo_weinhold at gmx.de
Sat Jun 16 08:05:41 PDT 2012
On 2012-06-16 at 05:33:06 [+0200], Mark Watts <miraiwarren at gmail.com> wrote:
> I'm looking for FUSE on Haiku, but haven't found it. I had heard something
> about userlandfs and found this:
Yes, the FUSE support is in subdirectory server/fuse.
> If this userlandfs provides FUSE capability, I would like to enable it. Is
> it available by compiling Haiku?
Yes. You must build Haiku with the UserlandFS optional package enabled (e.g.
add "AddOptionalHaikuImagePackages UserlandFS ;" to your UserBuildConfig). The
package cannot be added afterwards. The FUSE interface is included. The FUSE
headers are installed in /boot/develop/headers/userlandfs/fuse.
To build the client file system you'll have to link against
libuserlandfs_fuse.so (instead of the usual FUSE library). Moreover it is
necessary to enable the POSIX error mapper, since the FUSE interface requires
POSIX compatible (i.e. non-negative) error codes. You do that by defining the
macro B_USE_POSITIVE_POSIX_ERRORS -- e.g. by adding it to the CPPFLAGS (not
sure, maybe also to CFLAGS) before invoking configure (assuming the build
system is autotools based) -- and link against libposix_error_mapper.a -- e.g.
add to LIBS environment variable (as -lposix_error_mapper).
To use the file system, copy/move the client FS executable to the usual add-ons
directory for userlandfs. IIRC that's /boot/home/config/add-ons/userlandfs/.
Mount with "mount -t userlandfs -p <name-of-client-FS> ...". You can pass
arguments to the client FS by adding them to the argument of the -p option
after the client FS name (as one string, like: -p "foofs arg1 arg2"). To get
debug output run the userlandfs server manually in a terminal before mounting
("userlandfs_server <name-of-client-FS>"). You'll also have to do that, if the
client FS requires input like the password for sshfs.
Please note that the FUSE interface is highly experimental and not particularly
well tested. I played a bit with sshfs back when I wrote it. It seemed to work,
but got confused pretty soon. So be careful. Since it hasn't been touched for 3
years, the FUSE interface won't be up to date anymore either. Patches to
improve the situation are very welcome.
> What configuration options?
If you mean supported FUSE parameters, then I'm afraid none.
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