[Bug 2139395] Re: Directory permissions for /var/lib/apt/lists are correct

[Daniel Tang]

Run `sudo rm -rf /var/lib/apt/lists && sudo mkdir /var/lib/apt/lists &&
sudo apt update`

** Also affects: update-manager (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/2139395

Title:
  Directory permissions for /var/lib/apt/lists are correct

Status in ubuntu-release-upgrader package in Ubuntu:
  Invalid
Status in update-manager package in Ubuntu:
  New

Bug description:
  Directory permissions for /var/lib/apt/lists are correct:

  drwxr-xr-x 4 root root /var/lib/apt/lists

  Other InRelease files under archive.ubuntu.com are readable.
  However, the file:

  /var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_questing-
  security_InRelease

  is missing or cannot be opened, causing apt/update-manager to fail.
  This suggests a partial or interrupted lists update rather than a
  general permission issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.10
  Package: ubuntu-release-upgrader-core 1:25.10.8
  ProcVersionSignature: Ubuntu 6.17.0-8.8-generic 6.17.2
  Uname: Linux 6.17.0-8-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Jan 30 11:21:50 2026
  PackageArchitecture: all
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
  RebootRequiredPkgs: Error: path contained symlinks.
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: No upgrade log present (probably fresh install)

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