package sudo 1.8.31-1ubuntu1.2 failed to install/upgrade: o subprocesso instalado, do pacote sudo, o script post-installation retornou erro do status de saída 1

[Alex Leandro Rosa]

The same error sent before. I will boot by a USB and try to change the privileges of the file!!

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: sudo 1.8.31-1ubuntu1.2
ProcVersionSignature: Ubuntu 5.4.0-66.74-generic 5.4.86
Uname: Linux 5.4.0-66-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
AptOrdering: NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Feb 26 15:33:11 2021
DpkgTerminalLog:
 Configurando sudo (1.8.31-1ubuntu1.2) ...
 chown: alterando o dono de '/etc/sudoers': Operação não permitida
 dpkg: erro ao processar o pacote sudo (--configure):
  o subprocesso instalado, do pacote sudo, o script post-installation retornou erro do status de saída 1
ErrorMessage: o subprocesso instalado, do pacote sudo, o script post-installation retornou erro do status de saída 1
InstallationDate: Installed on 2018-12-12 (806 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.4
SourcePackage: sudo
Title: package sudo 1.8.31-1ubuntu1.2 failed to install/upgrade: o subprocesso instalado, do pacote sudo, o script post-installation retornou erro do status de saída 1
UpgradeStatus: Upgraded to focal on 2020-09-30 (148 days ago)
VisudoCheck:
 /etc/sudoers: análise OK
 /etc/sudoers.d/README: análise OK
mtime.conffile..etc.sudoers: 2020-12-30T18:27:17.782421