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I've moved from Ubuntu to Debian on a machine and all my sshfs mounting scripts fail with

fuse: failed to open /dev/fuse: Permission denied

now. Am I missing something simple?

John Baber-Lucero
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5 Answers5

28

For some reason, Debian configures FUSE to require users to be in the fuse group.

Run gpasswd -a username fuse as root, then log out and log in again. (Important step.)

leiflundgren
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grawity
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There is a bug report indicating that Debian Wheezy (which seems to have the version 2.9.0-2 of the fuse package, the bug is reported fixed in 2.9.0-3) may set wrong permissions for /dev/fuse (crw------T 1 root root in my case).

As stated around the comments of the earlier posts, this can be fixed by running the following commands as root:

chmod g+rw /dev/fuse
chgrp fuse /dev/fuse

Also remember to add your user to the fuse group with, e.g., gpasswd -a username fuse.

oseiskar
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Changing permissions ('sudo chmod g+rw /dev/fuse', the above omits the 'r') did work for me (in addition of course to adding my user to the fuse group).

Patrick
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I ran into the same /dev/fuse permission denied problem (unrelated the sshfs). In my case the fuse package was not installed. The package provides all the basic necessities like the mount tools, sysfs control, a new "fuse" group, and inode permission (managed by udev).

# apt-get install fuse
# usermod -a -G fuse <username>
# modprobe fuse

Last command loads the kernel module, and the kernel tells udev to set the permissions.

h0tw1r3
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I got the same problem. Turned out the permission for /dev/fuse was the following. I did the chmod command and it works fine. Don't know how it got into this state. It was working yesterday.

$ ls -l /dev/fuse
crw-rw---T 1 root fuse 10, 229 May  4 16:41 /dev/fuse

chmod a+rw /dev/fuse

#now it works fine!
packetie
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