Forgive me for not replying – I thought I had done so!
Unfortunately when this problem occurs there is no information in the log file about the failure to start up. On this other thread, we are trying to diagnose the problem. We believe it is related to the storage configuration on these devices.
There are two things you could try to help us understand the problem.
One is to go into the BIOS settings and look for an option named something like “Intel RST”, “Storage Configuration”, or “SATA/NVMe Operation” which is set to “RAID mode”, and change it to “AHCI” or “NVMe” if that is an option. Please take a photograph of the BIOS settings page before and after you make this change.
It could be that this will allow you to boot into 5.1.0. If it does, let us know and share the photographs! If it does not, please also let us know, and change the setting back.
The other thing you could try to get more debug information is to follow these steps: