debcrafters-packages team mailing list archive

[Marco Trevisan (Treviño) <2121017@xxxxxxxxxxxxxxxxxx>]

Even in systemd this is is going to be trickier than I though if we want
to do the things right since sadly dh-nss has some issues:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1113745

And in particular, it does not allow us to ensure that the service is
set for all the databases, given that it considers "good enough" a
nsswitch.conf that contains the systemd service in at least one database
(sadly the grep command it generates and that I pasted above, would just
pass in a broken nss switch, since multiple grep patterns are not in AND
form).

So... I initially thought that forcing a preinst script to re-generate
the nsswitch (as in
https://code.launchpad.net/~3v1n0/ubuntu/+source/systemd/+git/systemd/+merge/491734)
would have been enough to fix our problems, but as said the script
wouldn't run...

Thus various possibilities:
 1. Fix dh-nss as in the upstream bug (will it happen in time?)
 2. Workaround the problem by dropping all the systemd instances in the /etc/nsswitch preinst
    and then make dh-nss to fix it in postinst
    2a. I said dropping all the systemd instances for a reason: if we don't do it,
        we'll end up with duplicates

** Bug watch added: Debian Bug tracker #1113745
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1113745

** Also affects: dh-nss (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1113745
   Importance: Unknown
       Status: Unknown

-- 
You received this bug notification because you are a member of
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https://bugs.launchpad.net/bugs/2121017

Title:
  gdm3 49~beta doesn't start [unix_chkpwd: could not obtain user info
  (gdm-greeter)] on systems installed before 2024

Status in dh-nss package in Ubuntu:
  New
Status in gdm3 package in Ubuntu:
  Fix Released
Status in systemd package in Ubuntu:
  New
Status in dh-nss package in Debian:
  Unknown

Bug description:
  My system:

  $ lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu Questing Quokka (development branch)
  Release:	25.10
  Codename:	questing

  Completely updated.

  After yesterday (2025-08-19) package updates, gdm3 stops on starting
  Ubuntu and It's impossible to start Gnome. Gdm3 freezes computer.

  On restarting computer, I see a lot of dmesg messages:

  nouveau cannot find any crtc or sizes

  I've blacklisted nouveau driver and installed several nvidia drivers
  and nothing works.

  My nvidia is:

  # nvidia-driver-assistant
  Detected GPUs:
    NVIDIA GeForce RTX 4070 Laptop GPU - (pci_id 0x2860)

  Detected system:
    Ubuntu 25.10

  Only works to install lightdm.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.10
  Package: gdm3 49~beta-0ubuntu2
  ProcVersionSignature: Ubuntu 6.16.0-13.13-generic 6.16.0
  Uname: Linux 6.16.0-13-generic x86_64
  ApportVersion: 2.33.1-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Aug 20 08:23:58 2025
  InstallationDate: Installed on 2023-06-17 (795 days ago)
  InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)

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