sudo apt-get -f upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
Calculating upgrade... Done
The following NEW packages will be installed:
  libc6:i386
The following packages will be upgraded:
  snap-confine ubuntu-core-launcher
2 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
31 not fully installed or removed.
Need to get 22.1 kB/2,292 kB of archives.
After this operation, 9,814 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 snap-confine amd64 1.0.38-0ubuntu0.16.04.8 [19.4 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 ubuntu-core-launcher amd64 1.0.38-0ubuntu0.16.04.8 [2,688 B]
Fetched 22.1 kB in 0s (53.3 kB/s)             
debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
(Reading database ... 211284 files and directories currently installed.)
Preparing to unpack .../libc6_2.23-0ubuntu3_i386.deb ...
debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
dpkg: error processing archive /var/cache/apt/archives/libc6_2.23-0ubuntu3_i386.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1
Preparing to unpack .../snap-confine_1.0.38-0ubuntu0.16.04.8_amd64.deb ...
Unpacking snap-confine (1.0.38-0ubuntu0.16.04.8) over (1.0.38-0ubuntu0.16.04.4) ...
Preparing to unpack .../ubuntu-core-launcher_1.0.38-0ubuntu0.16.04.8_amd64.deb ...
Unpacking ubuntu-core-launcher (1.0.38-0ubuntu0.16.04.8) over (1.0.38-0ubuntu0.16.04.4) ...
Processing triggers for libc-bin (2.23-0ubuntu3) ...
Processing triggers for man-db (2.7.5-1) ...
Errors were encountered while processing:
 /var/cache/apt/archives/libc6_2.23-0ubuntu3_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)