Ubuntu MATE 22.04 ISO installer detects laptop boot mode wrong (BIOS vs UEFI)

[Aki Ketolainen]

I booted the ubuntu-mate-22.04.2-desktop-amd64.iso image on a non-UEFI laptop.

After the partitioning phase, I got an error message of a missing EFI system partition.

This error message is erronous, since the laptop boots only in BIOS mode.

Grub is still installed correctly to MBR.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: MATE
DistroRelease: Ubuntu 22.04
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed maybe-ubiquity ---
InstallationDate: Installed on 2023-07-07 (0 days ago)
InstallationMedia: Ubuntu-MATE 22.04.2 LTS "Jammy Jellyfish" - Release amd64 (20230223)
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 5.19.0-46.47~22.04.1-generic 5.19.17
Tags: jammy ubiquity-22.04.19
Uname: Linux 5.19.0-46-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 2026336

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

( Are you sure you weren't reading an expected WARNING message (may not boot) as if it was an error message? It's also possible to get an actual error message because you wrote the ISO differently to the method intended for installation media (which can cause the installer to wrongly calculate its an EFI machine due to ESP existing on installation media), but we can't currently know as you didn't file report from your actual media or install & thus no logs are available )

[Aki Ketolainen (akik)]

apport information

[Aki Ketolainen (akik)]

apport information

[Aki Ketolainen (akik)]

apport information

[Aki Ketolainen (akik)]

apport information

[Aki Ketolainen (akik)]

apport information

[Aki Ketolainen (akik)]

apport information

[Aki Ketolainen (akik)]

ubiquity is not installed after the install from the ISO installer. That's why I didn't know I could use ubuntu-bug to report about this problem.

To the user it doesn't matter if the window that is shown during the install is a warning or an error. It's just unnecessary to show it on a non-UEFI installation.

I wrote the Ubuntu MATE 22.04.2 ISO to a USB stick with Rufus using Rufus' dd write mode. This is enabled by pressing alt-i after starting Rufus. The installation from the USB stick worked well.