I'm currently running Qubes 3.2 on a Intel Core i7-920 processor just fine. Now I wanted to test the new Qubes 4.0-rc4 and ran into some issue. The installer tells me, there is no vt-d/.../... support available, although it should be fine. VT-d is enabled in bios and hyper-v or vmware are fully functional on that machine under Windows. So I thought it was a false warning and decided to continue the installation leading to another error message when the configuration tries to run sys-net. After Qubes OS was booted, the sys-net etc. were not started automatically, so I tried to run then manually which ended in the same error message. libxl-driver.log displays "PCI device cannot be assigned - no IOMMU?"
Since my search for a solution to this problem led nowhere (entries on mailing lists and google) I wanted to ask here in this mailing list. I checked the minimum requirements on Qubes 4.0 to make sure the hardware meets them: 64-bit Intel or AMD processor (x86_64 aka x64 aka AMD64) ---> YES (Intel Core i7-920) Intel VT-x with EPT or AMD-V with RVI ---> YES (ark.intel.com lists "VT-x with EPT") Intel VT-d or AMD-Vi ---> YES (VT-d is enabled in BIOS) 4 GB RAM ---> YES (16 GB RAM available) 32 GB disk space ---> YES (256GB USB 3.0 Stick for testing) Also something weird to mention: After some reboots (while trying to fix the issue) the sys-net and sys-firewall were automatically started (displaying 2 console windows, showing the boot of these VMs, which is not the case in Qubes 3.2). This happened only once and I could not reproduce this anymore. So now I'm stuck with the "no IOMMU?" error in libxl-driver.log. Any idea what the problem is and how it can be solved? -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to firstname.lastname@example.org. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/CAMtrDxRhEnJnO6jk7yBmp1ffROmR1TuJdrQ3D%3Dh%3DsUhfj0BJ1Q%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.