On Fri, Dec 21, 2018 at 01:01:55PM +0100, Adrian Siemieniak wrote:
> W dniu 21.12.2018 o 12:51, Sven Hoexter pisze:
> > On Fri, Dec 21, 2018 at 12:41:11AM +0100, Adrian Siemieniak wrote:
Hi Adrian,
> > > Trying to mount exfat device by unprivileged user renders this error:
> > > :~$ /sbin/mount.exfat-fuse -d /dev/sdg1 mnt/
> > > FUSE exfat 1.3.0
> > > fusermount: unknown option 'user=sauron'
> > >
> > > It the same with different users and I've also tested it on other machine
> > > (also Debian/Sid).
> >
> > I'm not entirely sure what you like to achieve. To the best of my knowledge
> > the exfat fuse
> > implementation only supports the filesystem options listed in man 8
> > mount.exfat.
> > I also had a short look into man 8 mount.fuse and can't find any mention of
> > a "user" option,
> > so I'm not even sure if you expect it to be a filesystem option or a fuse
> > option.
>
> Well, the problem is I don't set this options "user=uid" - this is done
> somewhere in between by fuse or exfat-fuse - I don't know.
Ok I had a short look at this. I can see (via strace) that there is the
following
invocation of fusermount:
24748 execve("/bin/fusermount", ["fusermount", "-o",
"rw,nosuid,nodev,allow_other,default_permissions,blksize=4096,user=sven,blkdev,fsname=/dev/sdb",
"--", "/home/sven/mnt"], 0x55d976d2ea90 /* 25 vars */) = 0
Looking into libfuse/lib/mount.c (the fuse source package), I can find a
FUSE_OPT_KEY("user=", KEY_MTAB_OPT),
I would assume it should be able to handle that one, though it seems it does
not.
Sven
