Installer stuck at "Force UEFI installation" dialog

[sam tygier]

I am installing from the Ubuntu MATE beta image (ubiquity 2.21.13) on to a lenovo x230 with a completely blank disk.

I selected manual partitioning, created a swap, efi partition and a btrfs root partition. After OKing this I get a dialog titled "Force UEFI installation", see attached screen shot. The "Go Back" and "Continue" buttons click, but nothing happens. There is no way to close the dialog.

[sam tygier (samtygier)]

I get stuck at the same message if I just create a swap and /, or if I choose "Erase disk and install Ubuntu MATE"

[sam tygier (samtygier)]

Gparted gives the warning "Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.", possibly related. Drive is a Seagate SSHD ST500LM000.

[sam tygier (samtygier)]

Also happens with Ubuntu (not mate) current (06-Mar-2015) daily-live.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[G-philip (g-philip)]

If you choose not to download updates from the internet, it works anyway.

[kbsali (kbsali)]

Got right in the same situation when installing G-Ubuntu no my X1 Yoga.
The solution is a mix of all this : i ended up doing a "normal" install without modifying the partition map, that worked.
I then re-installed and modified the partitions based on what had been setup by the default install.

[Kyle Morton (ksmistersk)]

I am hesitant to let the "Erase disk and install ubuntu" option take effect, as I have a second hard drive that installed that I absolutely do not want to be erased.

I'm having this exact issue on 16.04.1 LTS. Just downloaded this morning. Attempted to "Do Something Else" while booted into UEFI mode, attempted to create an EFI partition, a separate / partition and a separate /home partition. Displayed the error screen that asked if I would like to force UEFI mode, and wouldn't proceed from there regardless of which button was clicked (x, ok, go back)

[Juan Manuel (jmriverofernandez-4)]

I have the same problem with Ubuntu-Gnome 16.04 LTS.

[Fred Thoma (drulenberg)]

Same problem with Installation from a USB (runs ubuntu-16.04.1-desktop-amd64.iso; made bootable by rufus-2.10).
- In my UEFI I chose to boot from UEFI only
- I made the USB Stick GPT (UEFI only)

During installation I chose:
[X] to update updates automatically and
[X] to install 3rd party software and

I chose to partition manually.
Device: Samsung 950 Pro. So this is how I partition the /dev/nvme0n1 (which will be the bootloader partition):
Partition 1: 200 MB, EFI (ESP)
Partition 2: 11 GB, SWAP
Partition 3: 500 GB, ext4, /
all primary partitions

Stuck at the Force UEFI Box.

(btw in German it says "Die Firmware dieses Rechners hat den Installer im UEFI-Modus gestartet, aber scheinbar existieren weitere Betriebssysteme auf dem REchner, die im BIOS-Kompatibilitätsmodus installiert wurden. Wenn Sie mit der Debian-Installation im UEFI-Modus fortfahren, könnte es später problematisch werden, eines der anderen Betriebssysteme im BIOS-Modus zu starten." ..).

No matter what I click (next or back), nothing happens.

I need to press my computer's RESET button, then do "G-philip (g-philip) wrote on 2015-04-03"'s workaround:

Choose not to install updates during installation. Then it works! I was able to click "Next" on that "Force UEFI" message, and the installation actually went on.

Thanks G-philip! And please fix that bug, Ubuntu team.

By the way: My mainboard (Asrock Rack E3C236D4U, UEFI 1.5) cannot find my installation if I choose "Boot -> CSM Parameters -> Boot Option: UEFI only" in the UEFI options. I need to choose "UEFI + Legacy" here to be able to find + boot my fresh installation. But maybe that's related to my Mainboard / SSD (Samsung 950 Pro, NVME, M.2) combination and not Ubuntu only. (Havn't tried Windows yet)