Public bug reported: Confirmed in 16.04 LTS and Yakkety Daily.
How to reproduce: User Ubuntu Server ISO and at the very last question of the installer, answer "no automatic updates." Then, after the reboot, check /etc/apt/apt.conf.d/50unattended-upgrades and you will find: // Automatically upgrade packages from these (origin:archive) pairs Unattended-Upgrade::Allowed-Origins { "${distro_id}:${distro_codename}-security"; // "${distro_id}:${distro_codename}-updates"; // "${distro_id}:${distro_codename}-proposed"; // "${distro_id}:${distro_codename}-backports"; }; Since by default the first one is enabled, it will install automatic updates despite having selected "no" during installer. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: debian-installer (not installed) ProcVersionSignature: Ubuntu 4.4.0-23.41-generic 4.4.10 Uname: Linux 4.4.0-23-generic x86_64 ApportVersion: 2.20.1-0ubuntu4 Architecture: amd64 Date: Fri Jun 10 19:14:21 2016 InstallationDate: Installed on 2016-06-11 (0 days ago) InstallationMedia: Ubuntu-Server 16.10 "Yakkety Yak" - Alpha amd64 (20160610) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub Bus 002 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: VMware, Inc. VMware Virtual Platform MemoryUsage: total used free shared buff/cache available Mem: 4028940 156064 3690500 5928 182376 3693048 Swap: 4192252 0 4192252 ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-23-generic root=UUID=eb6a3dc1-0e2a-4ad0-bb88-a5be4bdb7013 ro SourcePackage: debian-installer UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/02/2015 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: 6.00 dmi.board.name: 440BX Desktop Reference Platform dmi.board.vendor: Intel Corporation dmi.board.version: None dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 1 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd07/02/2015:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A: dmi.product.name: VMware Virtual Platform dmi.product.version: None dmi.sys.vendor: VMware, Inc. ** Affects: debian-installer (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug yakkety -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1591427 Title: Installer gives user option to deactivate automatic updates, yet automatic upgrade of security packages are on by default To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1591427/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs