Ah, spoke too soon. BEFORE apt-utils installed - ALL installs produce W mesasge
AFTER apt-utils installed - NEW installs only produce W message; re- installing packages which have been been removed does NOT produce W message. Removing using 'apt purge' displays furterh warnings about pemrission failures when deleting. Test case apt install xkcdpass W message displayed apt remove xkcdpass no warnings apt install xkcdpass no message displayed apt purge xkcdpass warnings displayed - Permission denied removing file from /var/cache/man apt install xkcdpass no message displayed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/2079785 Title: apt / apt-get install produce spurious Warning Status in apt package in Ubuntu: New Bug description: A new minimal install of Ubuntu Server 24.04 has started giving a W message on completion of all apt and apt-get installs: W: Download is performed unsandboxed as root as file '/var/cache/apt/archives/partial/<PACKAGE_NAME>' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied) This seems to be spurious, as on checking /var/cache/apt/archives/partial has correct _apt:root ownership, mode 700. I have set ownership on everything from /var/cache/apt down to _apt:root, but it makes no difference - the warning continues to be emitted on all installs, using both apt and apt-get. From widespread discussion I've found online, this seems to be a common issue with no obvious cause or solution other than to make root the sandbox user in /etc/apt/apt.conf.d, which seem to me to not be a solution at all! I agree that _apt should be used with reduced privileges for downloading, but it seems that something in the changes you made to implement this is broken. The only non-standard thing about the install I can think of is that /var is symlinked to /zen/var/ where /zen mounts another partition (we prefer to keep data directories such as /var, /srv and /tmp off the system volume). However, we have the same arrangement on other systems and don't have this issue everywhere. I'll attach my ubuntu-bug report here, as the machine which generated it is headless. Thanks C To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/2079785/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp