I was updating my system (Debian Sid x64) using apt-get, but I got the following error:

Setting up fuse (2.9.3-14) ...
dpkg: error processing package fuse (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:

I had an error like this before (also with fuse), but then there was some information about the error displayed so I could do some research. There's nothing in /var/log/syslog or /var/log/apt/term.log.

Last time it was solved by updating the kernel, but I would prefer not to update the kernel at the moment without any prove that updating the kernel solves the problem.

Is there any way I can actually see what's causing the error instead of a message that just says it failed to install?

  • What happens if you try apt-get install --only-upgrade fuse? Do you get the same message?
    – jimm-cl
    Jul 31 '14 at 15:20
  • I get fuse is already the newest version., then 1 not fully installed or removed. and then I get the same messsage again. Jul 31 '14 at 15:25
  • 2
    I'm getting this too (Only slightly less annoying than not being able to upgrade my Xserver cause of the nvidia drivers...) the error is being triggered by this line in /var/lib/dpkg/info/fuse.postinst: udevadm test -e -p $(udevadm info -q path -n /dev/fuse) > /dev/null 2>&1 I have no idea what this is supposed to do but it's exiting with 1 and that's causing the issue...
    – J V
    Jul 31 '14 at 16:03

It seems that line 20 in /var/lib/dpkg/info/fuse.postinst has a syntax error. According to this the -e should be changed to -a. I did that and finally installed on my test VM.


udevadm test -e -p  $(udevadm info -q path -n /dev/fuse) > /dev/null 2>&1


udevadm test -a -p  $(udevadm info -q path -n /dev/fuse) > /dev/null 2>&1

Simple solution:

mkdir /dev/fuse
chmod 777 /dev/fuse

apt-get install fuse
  • Welcome to Super User. Your answer could benefit from more detail. Please edit it to explain how your solution works/how it addresses the OPs question. Apr 30 '17 at 0:38
  • I don't see why this answer was downvoted. It solved the problem perfectly. I first checked the udevadm test -a line, and it was fine. Simply creating the directory with the right perms fixed the problem and fuse installed without problem.
    – Scott
    Jul 28 '17 at 0:57

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