[Bug 2115177] [NEW] apt modernize adds wrong keyring

Heinrich Schuchardt 2115177 at bugs.launchpad.net
Mon Jun 23 07:12:27 UTC 2025


Public bug reported:

I created /etc/apt/sources.list.d/ddebs.list with content

deb http://ddebs.ubuntu.com questing main restricted universe multiverse
deb http://ddebs.ubuntu.com questing-updates main restricted universe multiverse
deb http://ddebs.ubuntu.com questing-proposed main restricted universe multiverse

After running `apt modernize` I had a file

/etc/apt/sources.list.d/ddebs.sources

Types: deb
URIs: http://ddebs.ubuntu.com/
Suites: questing
Components: main  restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Types: deb
URIs: http://ddebs.ubuntu.com/
Suites: questing-updates
Components: main  restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Types: deb
URIs: http://ddebs.ubuntu.com/
Suites: questing-proposed
Components: main  restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

`apt-get update` fails with

W: An error occurred during the signature verification. The repository
is not updated and the previous index files will be used. OpenPGP
signature verification failed: http://ddebs.ubuntu.com questing
InRelease: The following signatures couldn't be verified because the
public key is not available: NO_PUBKEY C8CAB6595FDFF622

`apt modernize` should have added the correct keyring and possibly
should have used a single entry:

Types: deb
URIs: http://ddebs.ubuntu.com/
Suites: questing questing-updates questing-proposed
Components: main  restricted universe multiverse
Signed-by: /usr/share/keyrings/ubuntu-dbgsym-keyring.gpg

Please, associate http://ddebs.ubuntu.com/ with the correct keyring.

** Affects: apt (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- apt modernize adds wrong signing key
+ apt modernize adds wrong keyring

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https://bugs.launchpad.net/bugs/2115177

Title:
  apt modernize adds wrong keyring

Status in apt package in Ubuntu:
  New

Bug description:
  I created /etc/apt/sources.list.d/ddebs.list with content

  deb http://ddebs.ubuntu.com questing main restricted universe multiverse
  deb http://ddebs.ubuntu.com questing-updates main restricted universe multiverse
  deb http://ddebs.ubuntu.com questing-proposed main restricted universe multiverse

  After running `apt modernize` I had a file

  /etc/apt/sources.list.d/ddebs.sources

  Types: deb
  URIs: http://ddebs.ubuntu.com/
  Suites: questing
  Components: main  restricted universe multiverse
  Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

  Types: deb
  URIs: http://ddebs.ubuntu.com/
  Suites: questing-updates
  Components: main  restricted universe multiverse
  Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

  Types: deb
  URIs: http://ddebs.ubuntu.com/
  Suites: questing-proposed
  Components: main  restricted universe multiverse
  Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

  `apt-get update` fails with

  W: An error occurred during the signature verification. The repository
  is not updated and the previous index files will be used. OpenPGP
  signature verification failed: http://ddebs.ubuntu.com questing
  InRelease: The following signatures couldn't be verified because the
  public key is not available: NO_PUBKEY C8CAB6595FDFF622

  `apt modernize` should have added the correct keyring and possibly
  should have used a single entry:

  Types: deb
  URIs: http://ddebs.ubuntu.com/
  Suites: questing questing-updates questing-proposed
  Components: main  restricted universe multiverse
  Signed-by: /usr/share/keyrings/ubuntu-dbgsym-keyring.gpg

  Please, associate http://ddebs.ubuntu.com/ with the correct keyring.

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