So in the end I went with a Ryzen 3700X CPU and the Asus Prime X570-Pro motherboard, adding in an NVMe drive as well for my boot/root device. The results have been mixed. The Good News: When I boot the Arch Linux installation image from a flash drive, then chroot into my old root filesystem, it all seems to run smoothly (within the limitations of the chroot). Nice and zippy, with good heat monitoring hardware and so on. The Bad News: The Asus BIOS will not recognize any of the SATA drives or the NVMe drive as bootable. I don't know why, since the BIOS does see all the drives otherwise. After some google search, I tried enabling CSM, which at least got me as far as seeing the other drives in the boot priority list, but, again, none are bootable. My current guess is that it's the Secure Boot option, which was enabled by default, and which I have no idea how to turn off. But maybe it's something else -- after putting an EFI partition on the NVMe drive and installing the kernel, I did use efibootmgr from inside the chroot to try to write the efivars that would select that NVMe drive to boot from, but efibootmgr --verbose seemed to indicate that the option was written to the USB flash drive instead ... ? Any, and all, suggestions welcome. I don't have any experience with the Secure Boot option, if that might be the culprit. -- Peter King peter.king@utoronto.ca Department of Philosophy 170 St. George Street #521 The University of Toronto (416)-946-3170 ofc Toronto, ON M5R 2M8 CANADA http://individual.utoronto.ca/pking/ ========================================================================= GPG keyID 0x7587EC42 (2B14 A355 46BC 2A16 D0BC 36F5 1FE6 D32A 7587 EC42) gpg --keyserver pgp.mit.edu --recv-keys 7587EC42