package shared-mime-info 1.5-2ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

Says that "usr" is full, though I should have space. I've fixed broken packages but I can't install anything.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: shared-mime-info 1.5-2ubuntu0.1
ProcVersionSignature: Ubuntu 4.8.0-46.49~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-46-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Tue May 9 18:21:21 2017
DpkgTerminalLog:
 Setting up shared-mime-info (1.5-2ubuntu0.1) ...
 I/O error : No space left on device
 Failed to write XML file; For permission problems, try rerunning as root
 dpkg: error processing package shared-mime-info (--configure):
  subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2017-04-18 (21 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
SourcePackage: shared-mime-info
Title: package shared-mime-info 1.5-2ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)