Public bug reported: its a new notebook, with UEFI boot. Got this error even with Legacy Boot enabled.
ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubiquity 2.21.63.2 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CasperVersion: 1.376 Date: Sat Sep 3 15:49:35 2016 InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/xubuntu.seed cdrom-detect/try-usb=true noprompt floppy.allowed_drive_mask=0 ignore_uuid boot=casper quiet splash --- LiveMediaBuild: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) ProcEnviron: LANGUAGE=pt_BR.UTF-8 PATH=(custom, no user) LANG=pt_BR.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 third-party-packages ubiquity-2.21.63.2 xenial xubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1619956 Title: installing xubuntu on a new notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1619956/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs