Terminal: sudo apt-get install -f Could not exec dpkg! E: Sub-process /usr/bin/dpkg returned an error code (100) Terminal: sudo apt-get update W: Erro GPG: http://packages.medibuntu.org precise InRelease: As assinaturas a seguir não puderam ser verificadas devido à chave pública não estar disponível: NO_PUBKEY 2EBC26B60C5A2783

[Mike Zem]

Terminal: sudo apt-get install -f
Could not exec dpkg!
E: Sub-process /usr/bin/dpkg returned an error code (100)

Terminal: sudo apt-get update
W: Erro GPG: http://packages.medibuntu.org precise InRelease: As assinaturas a seguir não puderam ser verificadas devido à chave pública não estar disponível: NO_PUBKEY 2EBC26B60C5A2783

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubuntu-release-upgrader-core 1:0.192.10 [origin: unknown]
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
CrashDB: ubuntu
Date: Tue Jun 6 00:38:36 2017
InstallationDate: Installed on 2017-04-22 (44 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to raring on 2017-06-05 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2017-06-06 00:37:47.545387
 Log time: 2017-06-06 00:38:07.673597
 Log time: 2017-06-06 00:38:28.411830
 Log time: 2017-06-06 00:38:36.294047
VarLogDistupgradeTermlog: