How can i add intel_iommu=on intel=pt on systemd-boot ? I added the option in /etc/kernel/cmdline But after reboot dmesg | grep IOMMU gives this output [ 0.081739] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed90000 IOMMU 0 [ 0.384547] AMD-Vi: AMD IOMMUv2 functionality not available on this sy…

You need to run: sudo reinstall-kernels afterwards to regenerate your boot entries and initrds.

Yooooooooooo…it worked !!! Thank you so much That means: for grub it’s: grub-mkconfig -o /boot/grub/grub.cfg for systemd-boot it’s: sudo reinstall-kernels :smirk: [ 0.036646] DMAR: IOMMU enabled [ 0.081935] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed90000 IOMMU 0 [ 0.456469] AMD-Vi: AMD…

Enable IOMMU for systemd-boot

General system Kernel, boot, graphics & hardware

Subha909 May 15, 2023, 4:39pm 3

okay let me try…