I have been unable to boot Ubuntu on my machine for quite a while now
(this also happens with Fedora 40 and Ubuntu 22.04), however, after a
long back and forth with Daniel, I have been unable to capture a log,
(journalctl, does not capture failed boot logs), and all I can get is
'recovery mode' boot logs.


So my question is, is there a way around to capturing failed boots on Ubuntu, 
so at least we can diagnose the problem? 

(Also, I can't log into Ubuntu in recovery mode, if I have prime-select
set to 'nvidia', and not 'intel')

** Changed in: ubuntu
       Status: Incomplete => Invalid

** Converted to question:
   https://answers.launchpad.net/ubuntu/+question/817862

** Description changed:

  I have an Nvidia graphics hybrid setup (Geforce GTX 960M + Intel HD
  Graphics 530), and Ubuntu 24.04 failed to boot after clean installing.
  
  I switched to the 470-series driver instead of the default 535-series
  one, via "Recovery mode" and things got working, until I performed the
  following upgrade:
  
  2024-06-20 06:21:59 upgrade nvidia-driver-470-server:amd64
  470.239.06-0ubuntu2 470.256.02-0ubuntu0.24.04.1
  
  After that, Ubuntu won't boot even with the 470-series driver.
  
- Plus, setting 'prime-select' to intel did not help either.
+ Plus, setting 'prime-select' to intel does not help either.
  
- Furthermore, I even tried clean-installing Ubuntu 22.04, and Fedora 40,
- on the same gear and got the same result.
+ Finally, I even tried clean-installing Ubuntu 22.04, and Fedora 40, on
+ the same gear and got the same result.
  
  No LSB modules are available.
  Description:  Ubuntu 24.04 LTS
  Release:      24.04

** Description changed:

  I have an Nvidia graphics hybrid setup (Geforce GTX 960M + Intel HD
  Graphics 530), and Ubuntu 24.04 failed to boot after clean installing.
  
  I switched to the 470-series driver instead of the default 535-series
  one, via "Recovery mode" and things got working, until I performed the
  following upgrade:
  
  2024-06-20 06:21:59 upgrade nvidia-driver-470-server:amd64
  470.239.06-0ubuntu2 470.256.02-0ubuntu0.24.04.1
  
  After that, Ubuntu won't boot even with the 470-series driver.
  
  Plus, setting 'prime-select' to intel does not help either.
  
  Finally, I even tried clean-installing Ubuntu 22.04, and Fedora 40, on
- the same gear and got the same result.
+ the same gear and got the same results.
  
  No LSB modules are available.
  Description:  Ubuntu 24.04 LTS
  Release:      24.04

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https://bugs.launchpad.net/bugs/2071680

Title:
  Ubuntu fails to boot

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