[Bug 1940750] [NEW] public key is not available: NO_PUBKEY FCEF32E745F2C3D5

[Francis ANDRE]

Public bug reported:

Hello

Got the error below when running a apt update command:

fandre at ubuntu-18-04:~$ sudo apt update
[sudo] password for fandre:
Hit:1 http://archive.ubuntu.com/ubuntu bionic InRelease
Hit:2 http://ppa.launchpad.net/webupd8team/java/ubuntu bionic InRelease
Get:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:4 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:5 http://archive.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:6 https://download.mono-project.com/repo/ubuntu stable-bionic InRelease
Hit:7 https://packages.microsoft.com/ubuntu/18.04/prod bionic InRelease
Ign:8 https://pkg.jenkins.io/debian-stable binary/ InRelease
Get:9 https://pkg.jenkins.io/debian-stable binary/ Release [2044 B]
Get:10 https://pkg.jenkins.io/debian-stable binary/ Release.gpg [833 B]
Err:10 https://pkg.jenkins.io/debian-stable binary/ Release.gpg
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FCEF32E745F2C3D5
Fetched 253 kB in 2s (157 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
332 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://pkg.jenkins.io/debian-stable binary/ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FCEF32E745F2C3D5
W: Failed to fetch https://pkg.jenkins.io/debian-stable/binary/Release.gpg  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FCEF32E745F2C3D5
W: Some index files failed to download. They have been ignored, or old ones used instead.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.37
ProcVersionSignature: Ubuntu 4.15.0-136.140-generic 4.15.18
Uname: Linux 4.15.0-136-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
CrashDB: ubuntu
Date: Sat Aug 21 18:17:14 2021
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic dist-upgrade uec-images

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https://bugs.launchpad.net/bugs/1940750

Title:
  public key is not available: NO_PUBKEY FCEF32E745F2C3D5

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Hello

  Got the error below when running a apt update command:

  fandre at ubuntu-18-04:~$ sudo apt update
  [sudo] password for fandre:
  Hit:1 http://archive.ubuntu.com/ubuntu bionic InRelease
  Hit:2 http://ppa.launchpad.net/webupd8team/java/ubuntu bionic InRelease
  Get:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
  Get:4 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
  Get:5 http://archive.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
  Hit:6 https://download.mono-project.com/repo/ubuntu stable-bionic InRelease
  Hit:7 https://packages.microsoft.com/ubuntu/18.04/prod bionic InRelease
  Ign:8 https://pkg.jenkins.io/debian-stable binary/ InRelease
  Get:9 https://pkg.jenkins.io/debian-stable binary/ Release [2044 B]
  Get:10 https://pkg.jenkins.io/debian-stable binary/ Release.gpg [833 B]
  Err:10 https://pkg.jenkins.io/debian-stable binary/ Release.gpg
    The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FCEF32E745F2C3D5
  Fetched 253 kB in 2s (157 kB/s)
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  332 packages can be upgraded. Run 'apt list --upgradable' to see them.
  W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://pkg.jenkins.io/debian-stable binary/ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FCEF32E745F2C3D5
  W: Failed to fetch https://pkg.jenkins.io/debian-stable/binary/Release.gpg  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FCEF32E745F2C3D5
  W: Some index files failed to download. They have been ignored, or old ones used instead.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.37
  ProcVersionSignature: Ubuntu 4.15.0-136.140-generic 4.15.18
  Uname: Linux 4.15.0-136-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sat Aug 21 18:17:14 2021
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)

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