package libpython3.8-minimal 3.8.5-1~20.04 failed to install/upgrade: dpkg-deb --fsys-tarfile subprocess returned error exit status 2

[Jegor Sushko]

more or less fresh install, icons didn't show, also terminal didn't launch. Got it to work with
sudo apt-get install -f
sudo dpkg --configure -a

then I got I was asked to send info about it. Not sure if that is related.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: libpython3.8-minimal 3.8.5-1~20.04
ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73
Uname: Linux 5.4.0-58-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.13
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sat Dec 12 05:51:32 2020
DuplicateSignature:
 package:libpython3.8-minimal:3.8.5-1~20.04
 Unpacking libpython3.8-minimal:amd64 (3.8.5-1~20.04) over (3.8.2-1ubuntu1.2) ...
 dpkg-deb: error: failed to read archive '/tmp/apt-dpkg-install-H1QE47/005-libpython3.8-minimal_3.8.5-1~20.04_amd64.deb': No such file or directory
 dpkg: error processing archive /tmp/apt-dpkg-install-H1QE47/005-libpython3.8-minimal_3.8.5-1~20.04_amd64.deb (--unpack):
  dpkg-deb --fsys-tarfile subprocess returned error exit status 2
ErrorMessage: dpkg-deb --fsys-tarfile subprocess returned error exit status 2
InstallationDate: Installed on 2020-12-12 (0 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.2
SourcePackage: python3.8
Title: package libpython3.8-minimal 3.8.5-1~20.04 failed to install/upgrade: dpkg-deb --fsys-tarfile subprocess returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that there was an error on your system when trying to install a particular package. Please execute the following command, as it will clear your package cache, in a terminal:

sudo apt-get clean

Then try performing the update again. This will likely resolve your issue, but the failure could be caused by filesystem or memory corruption. So please also run a fsck on your filesystem(s) and a memory test. Thanks in advance!

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]