I've just bought a new Acer Aspire notebook with AMD Ryzen 5 CPU and Radeon GPU and my ubuntu 18.04 liveUSB doesn't start. The boot is okay but the kernel freezes with this message: AMD-Vi: Disabling interrupt remapping.
I found that this happens because older kernel doesn't support new amd stuffs so I would like to know how could I boot an Ubuntu install with the newer 4.17 kernel.
I tried to load the proper 4.17 image using grub(liveusb) command line but ls command doesn't do anything and so I can't find drives/partitions.
Does somebody have a solution for this? Thanks.