I was a happy qubes user for 4 years, until i made the mistake of wanting to upgrade my CPU from a 1700x to a 5950x on x370 prime pro motherboard.
First of all let me list system specs:
Mobo x370 prime pro with the latest bios that supports this cpu
AMD rx460 2gb
So I backed up all the qubes from my previous installation, and downloaded the 4.1 iso. Then the issues start to appear, if i dont disable IOMMU (i remember i had a similar workaround to install qubes with the 1700x) i get black screens after the “relinquish vga” and it doesn’t get past that. If i do disable IOMMU i can get past the first part of the instalation, then I can re-enable IOMMU and go through the second part, but when it finally boots up sys-firewall etc wont boot up because they claim my system is not IOMMU compatible.
I have tried weekly builds, both the latest kernel ones and the non-latest kernel ones to no avail. I’ve verified the isos, used different methods to burn the usb all that to no impact.
In the troubleshooting guide it suggests to edit BOOTX64.cfg
but there’s no such file in that location (EFI/BOOT/BOOTX64.cfg)
There’s grub.cfg, with none of those options to comment out, and there’s BOOTx64.EFI.
I have tried changing every bios flag that could be relevant, I read reports of people not being able to install with C-States active, so I disabled that, I’ve tried with CSM on and off, IOMMU on and off, legacy and uefi, sometimes I do get to a final install but nothing works because sys-firewall says my cpu doesn’t support IOMMU (even though IOMMU is enabled at the bios level at that point, but yes it had to be disabled for the first part (pre-reboot) of the install).
I’ve ran out of ideas, and I’m regretting even upgrading to begin with. I rely on this machine for work and I’m desperate, to the point I might just stick another distro in it and just use KVM for separate VMs.
Any help would be great.