The thing is, whenever I run it interactively over ssh, unattended- upgrade succeeds. It's only the cron job that fails.
If there's no separate config file, I'll edit /etc/cron.daily/apt directly. (This server is still on Ubuntu 14.04 LTS). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unattended-upgrades in Ubuntu. https://bugs.launchpad.net/bugs/1721294 Title: Unattended upgrade fails with "Error in function" Status in unattended-upgrades package in Ubuntu: Confirmed Bug description: This is the cron email I received today: From: root <r...@iv-4.pov.lt> To: r...@pov.lt Subject: unattended-upgrades result for 'iv-4.pov.lt': 'False' Date: Wed, 4 Oct 2017 03:40:19 +0300 (EEST) Unattended upgrade returned: False Packages that attempted to upgrade: ca-certificates libidn11 libnss3 libnss3-nssdb Package installation log: Error in function: Unattended-upgrades log: Initial blacklisted packages: Starting unattended upgrades script Allowed origins are: ['o=Ubuntu,a=trusty-security', 'o=UbuntuESM,a=trusty', 'o=Ubuntu,a=trusty-security', 'o=Ubuntu,a=trusty-updates', 'origin=LP-PPA-pov,suite=trusty'] Packages that will be upgraded: ca-certificates libidn11 libnss3 libnss3-nssdb Writing dpkg log to '/var/log/unattended-upgrades/unattended-upgrades-dpkg_2017-10-04_03:40:17.411277.log' Installing the upgrades failed! error message: 'installArchives() failed' dpkg returned a error! See '/var/log/unattended-upgrades/unattended-upgrades-dpkg_2017-10-04_03:40:17.411277.log' for details Packages that are auto removed: '' Packages auto-removed The named log file, var/log/unattended-upgrades/unattended-upgrades- dpkg_2017-10-04_03:40:17.411277.log contains only this: Error in function: That's it. Now given that ca-certificates is involved, I suspect this may be related to non-ASCII filenames (see bug 1554365), but unlike that bug, here the upgrade fails instead of succeeding, and the actual error is not shown anywhere. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: unattended-upgrades 0.82.1ubuntu2.5 Uname: Linux 2.6.32-042stab124.2 x86_64 ApportVersion: 2.14.1-0ubuntu3.25 Architecture: amd64 Date: Wed Oct 4 18:54:54 2017 PackageArchitecture: all ProcEnviron: LC_CTYPE=lt_LT.UTF-8 TERM=xterm-256color PATH=(custom, no user) LANG=lt_LT.UTF-8 SHELL=/bin/bash SourcePackage: unattended-upgrades UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1721294/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp