System Specs
* Ryzen 9 3900X
* Nvidia RTX 2080ti
* MSI x570 gaming pro carbon wifi (updated bios to latest version from website)
First problem, when I insert the live usb, I cannot get to boot into ubuntu without using acpi=off. I have tried nomodeset. But without acpi=off, it will just not start (acpi_osi=Linux) also did not work.
Second problem, when I issue the command install ubuntu, I get Executuing 'grub-install /dev/nvme0n1' failed - This is a fatal error. I have tried manual partitioning, but it will just not work. To work around this issue I had to install Ubuntu 18.04 (with the same acpi=off, otherwise this will also not open). Ubuntu 18.04 installed successfully.
Third, then I got to ubuntu 18.04 installed nvidia-driver=450 from PPA (booted using acpi=off). Now when I start to upgrade to Ubuntu 20.04 from 18.04, The installation began but at the end, when grub could not be installed in /dev/nvme0n1 error was displayed. And it asked me if I should continue install or stop. I continued install but Ubuntu is a mess.
Can someone please help me, I paid a lot of money for the system and now I am stuck without an OS (please I really need your help)?