The installer encountered an unrecoverable error

[Leó Kolbeinsson]

Attempting to install Kubuntu Hirsute daily ISO http://cdimage.ubuntu.com/kubuntu/daily-live/20201112/hirsute-desktop-amd64.iso the installer failed with the following error message:

The installer encountered an unrecoverable error.A desktop session will now be run so that you may investgate the problem or try installing again.

This error occurred immediately after booting and the running of the file checks before entering the installer.

The machine invlved were :

1. Dell [Inspiron] 3521, (i3-3217U, 4GB, Intel HD Graphics 4000, Intel HM76 chipset 10/100 Mbps ethernet controller integrated on system board, WiFi 802.11 b/g/N, Bluetooth 4.0, 500 GB hd) This machine was in UEFI+secure boot mode.

2. InWin BL641 i5-10400,32GB,Intel UHD Graphics 630,Ethernet,Intel 660p 512GB M.2 NVMe hd - this install was in a VIrtualBox machine in BIOS mode.

Attached is the dmesg log file from the USB media that booted the Dell Inspirion machine (#1 above )

[Leó Kolbeinsson (leok)]

Further to my report ...the kern.log

[Leó Kolbeinsson (leok)]

In my initial post I forgot to mention that after the error message if ok is selected the machines then freeze - so the desktop session is never available.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1903964

[Launchpad Janitor (janitor)]

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

[Bob H (bobbicat)]

bug #1903378 has been reported as fixed on 2021-01-14

however this bug is present at Kubuntu daily build 2021-03-21 05:49