Hello, I did I tried to modify as suggested.I couldn't use sudo update-grub So I gave this command: <root@debian:/home/frantal# sudo grub-mkconfig -o /boot/grub/grub.cfg /usr/sbin/grub-mkconfig: 9: /etc/default/grub: amd_iommu: not found> I think there is an error in the procedure.... Waiting for suggestions... Francesco
> Il 13/03/2024 18:10 CET Franco Martelli <martelli...@gmail.com> ha scritto: > > > On 13/03/24 at 17:51, fran...@libero.it wrote: > > Sorry what is the procedure to add "iommu=soft > >> amd_iommu" to the kernel command-line? > > It is the first time I work with kernel. > > I went to /etc/default/grub and on the line GRUB_CMDLINE_LINUX_DEFAULT I > > have ="quiet splash" > > Have I to add <iommu=soft amd_iommu>? > > Thanks for the help > > Francesco > > Your line in /etc/default/grub becomes: > > GRUB_CMDLINE_LINUX_DEFAULT="quiet splash iommu=soft amd_iommu" > > then run: > > ~# update-grub > > then reboot the system. > > HTH > -- > Franco Martelli