Public bug reported: This is a cosmetic bug. The minimal way to reproduce it (from my limited testing) seems to be attempting an install of 16.04 in UEFI mode with a partitioned drive but no ESP. This causes a "Force UEFI installation?" prompt to appear, which says:
This machine's firmware has started the installer in UEFI mode but it looks like there may be existing operating systems already installed using "BIOS compatibility mode". If you continue to install Debian in UEFI mode... Presumably that should be Ubuntu, not Debian. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubiquity 2.21.63 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CasperVersion: 1.376 Date: Fri Apr 29 20:07:25 2016 ExecutablePath: /usr/lib/ubiquity/bin/ubiquity InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --- InterpreterPath: /usr/bin/python3.5 LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubiquity UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: ubiquity (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug debian ubiquity-2.21.63 ubuntu xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1576847 Title: Prompt says "Debian", not "Ubuntu" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1576847/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs