I want to wipe W10 from a lenovo laptop and install LM xfce 20.2. I disabled uefi, selected legacy boot as priority, and put the dvd drive at the top of boot order. The bios has no "fast boot" option. I also turned off TPM and disabled admin password. I successfully installed an older version of LM on another of the another laptop with the same configuration a few years ago so there should be no hardware issue.
After I connected the dvd drive to the notebook and booted up the machine, I could see the linux mint screen. I selected "start linux mint"; the screen then turned black for a second and then (no intermediate error message as far as I could tell) it showed a single blink underscore sign; I waited 10 minutes and nothing happened. I also tried running the "integrity test" and got the same blinking underscore sign. I hooked up the LM dvd to another window 10 machine and I was able to successfully boot up LM, so the image was not corrupted.
I have been using LM/ubuntu for many years and I have installed ubuntu/LM dozens of times on different machines; this is the first time I ran into this issue and I am stumped. Your help and suggestion are most welcome.
EDIT: Following @nasir's advice I downloaded xubuntu 20.04.3 and linux mint 20.02 edge, and I could booth from both! Both of these run off 5.11 kernel while LM 20.02 uses 5.4, so could that be the reason?
For compatibility reasons I very much want to stay with LM xfce, but right now I can't even booth into the live DVD. What are my options? THANKS!